TECHNICAL SPECIFICATION
FOR
ELECTRIC MOTOR DRIVEN
RECIPROCATING COMPRESSORS
FOR
CNG MOTHER STATION
(MEC/TS/05/62/S031)
CONSULTANT Limited
DELHI 110 092
1.0
GENERAL
M/s Hindustan Petroleum Corporation Ltd. are installing CNG filling stations for
vehicle in Bangladesh.
1.1
Scope of work
This specification along with applicable codes as referred describe the minimum
requirements for design, engineering, manufacturing, inspection, testing, supply
including packaging, forwarding, insurance on C.I.F basis , package performance test
at
Bidder 's shop, supply, erection & commissioning at site of " ELECTRIC
MOTOR DRIVEN RECIPROCATING GAS COMPRESSOR PACKAGE" as required
for dispensing CNG to vehicles at various locations in Bangladesh. The Compressor
Packages shall be identical in all technical respects. Various parts of this
specification shall be read in conjunction with each other and in case where the
different parts of this specification differs the more stringent requirement shall govern.
Any additional work/equipment or technical requirement not mentioned in the
specification but required to make the offered system complete in accordance with
the specification and for safe and proper operation, shall be deemed to be included in
the scope of work by the Bidder .
1.2
Codes & Standards
The design, construction, manufacture, supply, testing and other general
requirements of the compressor package equipment shall be strictly in accordance
with the data sheets, applicable API codes, and shall comply fully with relevant
National/ International standards, Bangladesh Electricity Act, Bangladesh Electricity
Rules, regulations of Insurance Association of Bangladesh and Factories Act while
carrying out work as per this specification.
Any modification suggested by the statutory bodies either during drawing approval or
during inspection, if any, shall be carried out by the Bidder without any additional
cost and delivery implications.
The following codes and standards (versions/ revisions valid on the date of order) are
referenced to & made part of specification:
CNG Compressor Code NZS 5425
CNG fuel System code NZS 5422
Natural Gas Vehicles NZS 5454
API-11P, Second edition
NFPA-37, OISD 179, NFPA-52: 1992
ANSI, ASTM, NEC, NEMA
Bangladesh Electricity Rules, Bangladesh Explosives Act.
1.3
Precedence
In case of any conflict among the various documents of this requisition the following
preferential order shall govern:
1.
Data sheets/drawings
2.
This Technical Specification
3.
International standards/codes as applicable
4.
Indian/ Bangladesh Standards / codes applicable
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 1
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Compliance with this specification shall not relieve the Bidder of the responsibility of
furnishing equipment and accessories of proper design, material and workmanship to
meet the specified operating conditions.
No deviations to the technical requirements and to the scope of supply specified in this
enquiry document shall normally be accepted and offers not in compliance to the same
shall be rejected summarily. In case a deviation is required due to inherent design of
the equipment offered, the Bidder shall list all such deviations at one place giving
reasons thereon.
DOCUMENTS/DATA REQUIRED ALONG WITH BID
Bidder shall necessarily furnish the following along with the bid without which the offer
shall be considered incomplete:
1.4
a.
b.
c.
d.
e.
f.
g.
Proven Track Record Formats duly filled in
Checklist duly filled in with regards to scope of supply
Completely filled in Data Sheets of compressor, Electric motors
Deviations if any to this Technical Specification
Tentative Lay out / key plan/ General Arrangement indicating size of skids,
center distance between skids and space required along with maintenance
requirements
(a) Utilities requirements (b) Electrical Load summary
Catalogues of compressor, electric motor, and instrumentation items.
SCOPE OF SERVICES
1.5
Engineering, design and manufacturing.
Procurement of raw materials etc. from sub-vendors.
Preparation of documentation for design approval by Purchaser/consultant.
Inspection and testing as per T.S.
Surface preparation, protective coating and painting as per T.S.
Packaging for transportation to site and supply.
Erection testing & commissioning as per T.S.
Field trial run and performance test at site.
Post commissioning maintenance
1.6
SCOPE OF SUPPLY FOR EACH COMPRESSOR PACKAGE
-
Each compressor Package shall be complete with:
Lubricated or non-lubricated two throw balanced opposed reciprocating
compressor with lube oil system and cooling system (console type) as required.
Electric motor as compressor driver.
Gas meter: Mass flow meter based on Coriolis principle of Micromotion, USA
(Model CNG 50 or higher) or equivalent at compressor discharge.
Instrumentation and control system as specified on data sheets, P&ID including
Local panel, Console/Local gauge boards, PLC
Common structural steel skid for the compressor- electric motor and for all
auxiliary systems.
Inlet twin suction gas filter with oil drain and temporary suction line strainer at 1st
stage and at other stage if required, Inter-stage and discharge gas, air cooled
heat exchangers
Inter-stage and discharge gas, air cooled heat exchangers
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 2
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-
Separator/ Knockout drums with solenoid valve operated auto/ manual drains as
required.
Priority Panel at Package Discharge
All interconnecting oil, gas, water, air piping within the compressor package.
Impulse and pneumatic piping/Tubing for all valves, fittings as specified &
required for mounting the instruments.
Separate junction boxes for different type of signals like intrinsically safe signals,
alarm, shutdowns, thermocouples, RTDs etc. for interfacing to local panel.
NRV (compressor discharge valve type) at final discharge point.
Structural supports within the compressor package for all piping, instruments etc.
One no. relief valve at each stage discharge all vented to common relief valve
header
Y- type strainers, valves, sight flow indicators, check valves, auto/manual drain
traps etc. as required for various auxiliary systems i.e. frame lube oil, cylinder
lubrication system, cooling water systems, fuel supply/conditioning system etc.
Coupling/V-belt/pulleys.
Single Acoustic enclosure for both Compressor and electric motor as specified,
with two number L.E.L detectors and two UV detectors in enclosure.
CO2 extinguishing system consisting of two cylinders, piping and valves.
Inlet and outlet manual / automatic isolating valves.
All CNG gas tubing and valves between compressor, dispenser and cascade will
supply and laid by bidder through GI tray. The distance from compressor to bus
dispenser, car dispenser and cascades is about 20 m, 15m and 10 m
respectively. Tube dia for bus dispenser shall be 1” OD.
Complete Erection, Testing & Commissioning of compressor packages.
All spares, consumables and lubricants for 1-year operating period (except
electricity).
Quote for second and third year repair and maintenance charges after warrantee
period of one year
Training of 4 persons (2 supervisors + 2 operators) at packager’s workshop and at
sub-vendors workshop. The traveling boarding and lodging of Purchaser’s engineers
shall be borne by PURCHASER. Training module shall span for two week and shall
cover the equipment constructional features, operational and maintenance
procedures etc. (Bidder to indicate separate price, if any).
Exclusions
The following are excluded from the scope of the Bidder :
-
All civil works and foundation design. However the Bidder shall furnish all the
relevant data for design of pedestal/ foundation. Grouting of equipment including
supply of material is a part of erection.
CNG storage cascade.
Bidder to note piping from air compressor and CO2 cylinders up to enclosures in
the scope of bidder.
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 3
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1.7
Safety
1.7.1
All controls shall operate in a fail-safe mode i.e. failure of any control shall not lead to
running of equipment in unsafe mode.
1.7.2
The hazardous area classification Class-I, Division I, Group D as per NEC or Zone I,
Group II A/ II B as per IS/ IEC. Certificate from recognized agency to the effect that
equipment supplied and/or installed conform to above area classification. All
Devices shall meet the requirement for the specified area classification in which they
are installed, including instrumentation leads.
1.7.3
All exposed rotating parts shall be provided with adequate guards of non-sparking
type.
1.7.4
Drive belt if used shall be of fire retardant and anti-static type.
1.7.5
Piping shall be arranged in a manner so as to provide clear headroom and
accessibility within the package. Adequate clearances shall be provided for all the
engineered components.
1.7.6
Package enclosures shall have two L.E.L detectors and two Ultra Violet (UV) fire
detectors in each enclosure to cover the enclosures effectively.
1.7.7
All material used in the package shall be flame retardant.
1.7.8
The Compressor Package shall trip if any of the enclosure is opened while the
machine is running.
1.7.9
Relief Valves shall be provided at inter-stage / compressor discharge with setting as
per cl. 7.20.3 of API – 11P with R.V. venting as per cl. 7.20.4 of API-11P.
1.7.10 CO2 flooding system:
- CO2 Cylinders shall be provided outside the package at a place where it is not
exposed to fire in case of fire in the compressor. Facility shall be made to
operate the system both manually from remote with the help of a switch/ call
point and with help of pull down lever on cylinders.
- CO2 flooding system will consist of 2 nos. of min 45 Kg. CO2 cylinders.
However, preferred size of the cylinder & quantity of CO2 gas will be as per the
size of enclosure. One cylinder will act as main cylinder & other as stand by,
which shall have identical arrangement and connected to the system. The
cylinders shall be placed in a shed to protect from weather and direct sunrays
as per Gas Cylinder Rules, 1981. Cylinders shall be fitted with automatic
actuated Valves, Solenoid valves etc.
- Vendor shall provide suitable weighing arrangement to facilitate weighing of the
cylinders without requiring the cylinders to be detached from the installation.
For this lever operated lifting arrangements may be provided.
- System shall be offered for testing to PURCHASER by the bidder after
commissioning at site by creating actual Gas leak and Gas fire situations and
actual discharge of CO2 Gas from the Cylinders. This shall form a part of
performance test and thereby acceptance of the package.
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 4
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2.0
UTILITIES & BATTERY LIMITS
2.1
Utilities
2.1.1
Bidder shall make his own provision for Instrument air with an electric motor driven air
compressor , receiver and air dryer system.
2.1.2
Cooling water is not available as utility and the package shall be provided with self
sufficient cooling water system for Compressor, as required, with make up tank.
However cooling water for make up tank is available.
2.1.3
All electrical and instrumentation terminals shall be as specified.
2.1.4
Electric power shall be made available by Owner.
2.1.5
For running the compressor and illumination 440 Volt (±10 %) 3-phases 4 wire (TNS), 50 Hz (± 2 %) shall be provided by Owner at a single point outside the enclosure.
2.1.6
Purchaser shall provide UPS (240 ±1 % V, 50 ±1 % Hz) for control supply
requirements.
2.2
Battery limits
2.2.1
All customer interface connections (i.e. Gas Inlet & Gas Outlet) shall be brought out
to the package edge and terminated in nozzles with isolation valves having flange
connection for gas inlet and 3/4” SS tube union for gas outlet.
2.2.2
As and where specified on the data sheets all vents (i.e. Relief valve, distance piece
and packing) shall be manifolded and terminated at skid edge outside the enclosure
and vented to safe height of 2.5 m at package roof.
2.2.3
All drains from different process equipment, distance piece and packing shall be
manifolded and terminated as single point for customer interface duly flanged with
isolation valve.
3.0
EQUIPMENT QUALIFICATION CRITERIA
3.1
Gas Compressor
The compressor model offered shall be from the existing regular manufacturing range
of the compressor manufacturer and shall meet the following minimum service and
manufacturing experience requirements.
Compressors shall be identical or validly similar in mechanical design, frame rating, no.
of throws, rotational and piston speeds, rod loading, cylinder sizes, pressure ratings,
number of stages, process gas (i.e. natural gas) and materials as compared to at least
five units manufactured, tested and supplied by the compressor manufacturer from the
proposed manufacturing plant. At least two of the offered models must have been
operating satisfactory in the field for a period of 8000 hours without any major overhaul
as on the bid due date.
4.0
BASIC DESIGN
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 5
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4.1
4.1.1
i.
ii.
iii.
iv.
General
The Compressor shall meet all the technical requirements as specified in:
Data Sheets: As enclosed
Technical Specification:
Code and specification API-11P, API-618 ,OISD 179, NFPA, ANSI, ASTM, NEC,
NEMA, Bangladesh Electricity Rules, and Bangladesh Explosives Act are referenced
to & made part of specification.
Compressor and its auxiliary’s design shall be in conformity with API 11P, second
edition.
4.1.2
Gas composition given under Design Case shall be used for Compressor selection,
sizing and performance guarantee estimates. However compressor shall be suitable
for continuous operation with the indicated gas composition range and operating
parameters given in this tender.
4.1.3
Suction line pressure vary from 0.84 to 1.05 kg/cm2.
Bidder to note suction
pressure regulator shall not be allowed to reduce the pr below 1.05 kg/cm2.
4.1.4
Bidder 's offer shall be based on firm and final compressor / electric motor models on
which basis the offer shall be evaluated and no alternate compressor / electric motor
models or change of models to lower frame shall be entertained.
4.1.5
Note that the pressures given on the data sheet are at the compressor package
battery limits, Bidder shall consider all pressure losses at suction, inter-stage and
discharge at the specified capacity (with no -ve tolerance) for compressor and
indicate the same on the data sheets.
4.2
Allowable speeds, temperature and vibration levels
4.2.1
The linear piston speed shall be limited to 4 m/sec for non-lubricated and 4.5 m/sec for
lubricated compressors.
4.2.2
The maximum discharge gas temperature for each stage shall be limited to 150oC.
4.2.3
Compressor maximum vibrations of cylinders shall not exceed 10 mm /sec. unfiltered
peak velocity. Maximum Vibration level of installed compressor frame shall not
exceed an unfiltered peak velocity of 7.5 mm/s. The Bidder shall provide for all
structural support within the package so that these levels can be achieved.
4.3
Piston Rod, Bearings and Cross Heads
4.3.1
The surface hardness of Rockwell C 50 minimum is required on piston rods in the
areas that pass through the packing. Rolled threads shall be provided on the rods with
thread relief area as polished.
4.3.2
Crosshead shall be manufacturer standard material and designs. Adequate openings
for removal of the crossheads shall be provided.
4.3.3
Piston rod and cross head pin loading at any specified operating condition at the relief
valve set pressure shall not exceed 80% of the maximum design rod load of the
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 6
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offered compressor. Rod loads shall have sufficient reversals in direction for all
specified operating conditions including RV Settings and part load operation.
4.3.4
Frame rating of the offered compressor model at RV set pressure corresponding to
max severe operating conditions shall not exceed 80% of the maximum design rating
as published in catalogues.
4.4
Packing Cases and Pressure Packing
4.4.1
All oil wiper intermediate gas cylinder pressure packing shall be segmental rings with
stainless steel garter springs. The pressure packing case shall be provided with a
common vent and drain below the piston rod tube to the outside of the Package
enclosure.
4.4.2
ERW/ seamless steel tubing conforming to ASTM A-192 or series 300 SS tubing
conforming to ASTM A-269 with minimum thickness as specified in Cl. 7.11 of API-11P
shall be used for vent piping.
4.4.3
Packing vent piping inside of the distance piece shall be designed for the maximum
allowable working pressure of the cylinder.
4.5
Compressor Frame Lubrication.
4.5.1
Compressor frame lubrication shall be pressurized system, with a main oil pump driven
directly by the compressor shaft.
4.5.2
If required the
Bidder shall provide an air driven pre-lubrication pump. Crankcase
shall be fitted with lube oil temp & level indicator.
4.5.3
All lube oil piping after oil filter shall be 300 series stainless steel conforming to ASTM
A269.
4.5.4
Heating shall be provided for reservoir when the minimum ambient temperature is
less than the Bidder 's required minimum start up temperature.
4.5.5
Heater besides meeting the area classification requirements specified in the Tender
shall be star connected if designed for operation on 3-phase (4 wire), 415V, 50 Hz
supply.
4.6
Distance Pieces
4.6.1
Distance piece as per API-11P with cylinder side compartment vented to safe location
is specified.
4.6.2
Distance pieces shall be provided with gasketted, solid covers and shall be suitable for
a minimum differential compartment pressure of 1.75 kg/cm²g.
4.7
Cylinder and Packing Lubrication
4.7.1
Single plunger per point force feed mechanical lubricator shall provide lubrication to
compressor cylinders.
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 7
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4.7.2
Lubricators shall be driven by crankshaft and bidder shall highlight any pre
lubrication requirements of the cylinders and the method of achieving the same.
4.7.3
Lubricators shall have a sight flow indicator for each lubricator point and a stainless
steel double ball check valve shall be provided at each lubrication point.
4.7.4
Digital no flow timer shall be provided to stop the compressor in case of loss of
cylinder lubrication.
4.7.5
Lubricator reservoir capacity shall be adequate for 100 Hrs of normal flow, and shall be
equipped with low level alarm.
4.7.6
Bidder along with the proposal shall furnish the recommended lubricating oil type,
International Grades & Specification along with their quantity and frequency of
change. The recommended oil shall be compatible with gaskets, O-rings, seals,
packing, lubricator parts and other parts coming into contact.
4.8
Cooling System
4.8.1
Compressor Cylinder
Compressor cylinders may be air cooled or water cooled. The CW shall be cooled by
an air cooled heat exchanger.
4.8.2
Inter / After Gas Coolers
Air-cooled inter-stage and final stage discharge coolers shall be provided which shall
limit the gas temperature after the after cooler to 52 degree C. For calculating the
surface area of the air cooler the ambient air temperature of 38 oC and 98% RH shall
be considered. Cooler design shall be on the basis of 20% extra load corresponding
to max severe operating conditions based on the thermal duty. Gas coolers shall be
designed as per API-661 requirements.
For cooling of the Heat Exchangers a cooling fan to be provided inside the
enclosure(s).
Cooling system to be preferably installed on same skid along with compressor due to
space constraints. Bidder shall submit cooler sizing calculation for review.
4.9
Separators & Oil Removal System
4.9.1
Carbon Steel separators / KOD at auto and manual drain system shall be provided
for the capacity as required.
4.9.2
All pressure vessels shall be designed as per ASME VIII Div 1 or equivalent.
4.9.3
Scrubber service class - B shall be used for Inter-stage / discharge scrubbers.
Service Class - C shall be used for suction scrubber. (Refer API -11P)
The offered scrubber and mist removal shall restrict the oil level to < 5 ppm in the
discharge gas of compressor. This shall be established during Performance Testing.
All vessels including pulsation dampers shall be fully (100 %) radiographed as per
ASME VIII UW (a) or equivalent.
-
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 8
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-
Minimum design temperature for separators shall be 71OC and minimum design
pressure shall be maximum operating pressure plus 15% for inter-stages and plus
10% for final stage.
4.9.4
Gas recovery system: Bidder shall provide blow-down tank to act as:
-
A buffer tank during start-up
Gas flow dampener during compressor operation
Surge tank for depressurization of each of the compressor stage piston cylinders
during shutdown.
Blow-down tank size should be to manufacturer’s design standards. The gas
recovery vessel shall be provided with pressure relief valve and necessary
instrumentation to avoid cold flaring of gas.
-
4.9.5
All separators / KOD's shall be provided with 3 mm corrosion allowance.
4.10
Pulsation, Vibration Control and Analog Study
4.10.1 Suitable arrangement for interstage pulsation damping shall be provided in
confirmation to API 618 and API 11P.
4.10.2
Bidder shall get the acoustic and mechanical evaluation study carried out for one
compressor package (from inlet flange to discharge on skid edge as per API-618
approach-3 ) by an agency or in house experts. The compressor
Bidder shall be
totally responsible for all the coordination with the agency carrying out the study.
Bidder shall submit acoustic and mechanical evaluation report to PURCHASER
/CONSULTANT for review.
4.12
Coupling
4.12.1 V-Belt drive upto 150 KW electric motor rating is acceptable. Direct drive shall be
offered by the Bidder if electric motor rating is > 150 KW. Gear drive is not
acceptable.
4.13
Enclosure of CNG Compressor Package
4.13.1 The maximum ambient temperature within the enclosure shall be limited to 43°C
based on the ambient temperature of 38°C. Adequate ventilation fans shall be
provided to meet the above and also to account for heat dissipation of the coolers.
4.13.2 The compressor package shall consist of single enclosure for Compressor and
Electric Motor. The equipment shall be mounted on one common skid. The
Enclosure to restrict maximum noise level to 65 dB(A) at 1 meter from the enclosure.
4.13.3 Enclosures shall be provide with a degree of protection equivalent to IP 54 as defined
in AS 1939, shall be flame proof and provided with forced ventilation system.
4.13.4 The enclosures shall have doors for normal access and removable wall panels for
ease of maintenance.
4.13.5 All the pressure, temperature, gas flow meter, oil level, lube oil pressure, coolant
temperature, coolant level indicators shall be visible from outside of enclosures.
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 9
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4.13.6 Enclosures shall have internal flame proof lighting arrangement.
4.13.7 For handling of all heavy parts for maintenance purpose lifting arrangement i.e. beam
fitted with chain hoist shall be provided in enclosure.
4.13.8 The Compressor shall be located inside an acoustic enclosure . All Coolers, Knock Out
Drums, Scrubbers, Cooling System, lubrication system along with interconnecting
piping shall be inside an enclosure. Enough headroom shall be made available for
easy access and maintenance of all equipment. The piping layout with respect to the
compressor, intercoolers, KOD and auxiliaries location shall be subject to Purchaser’s
approval during detailed engineering stage.
-
-
4.14
Components such as pressure gauges, temperature and pressure switches etc.,
which require in-situ adjustment and reading, shall be easily accessible.
Conduits and tubing shall be arranged in orderly and systematic manner and shall be
routed neatly to enter the back of display or monitoring panels
Routine service item such as, but not limited to, crank case oil filters, inter stage gas
filters, inlet and outlets gas filters and drive belt shall be located to facilitate easy oneman servicing.
One person should be able to access crank case oil inlet and drains to allow addition
or drainage of oil without removing panels or adjacent components and without the
need of the pump.
Items which must be operated & monitored during operation shall be readily
accessible without opening the door.
Suitable gradients shall be provided on the enclosure roof for rain drainage and to
avoid water pockets.
The sheet work used in the enclosure shall be SS 304 material due to corrosive
environment. Bidder is requested to submit the details of enclosure indicting material
proposed to used with bid.
Piping
4.14.1 All gas piping shall be designed, fabricated & tested in accordance with ANSI B 31.3.
4.14.2 Gas piping shall be seamless carbon steel manufacturing in accordance with ASTM
A- 53 Gr. B or ASTM A - 106 Grade B. All Gas piping shall be flanged connections.
4.14.3 All rigid piping, tubing & other components of compressor package shall be designed
for full range of pressure & temp and loading to which they may be subjected with a
factor of safety of at least 4 based on minimum specified tensile strength at specified
ambient temperature.
4.14.4 All rigid piping shall be continuous between their respective components & free of
connections except welded joints. All high pressure joints shall be welded unless
otherwise not feasible.
4.14.5 The instrument air tubing material shall be SS316 as per ASTM A269.
4.14.6 All high-pressure double ferrule fitting and
2/3 way valves shall be from
SWAGELOC/ PARKER/HOKE makes & shall be S.S. material only. Material of tube
shall also be SS316 as per ASTM A269 Sandwich make..
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 10
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4.14.7 Bidder shall furnish a temporary start up conical strainer fitted with adequate size
mesh.
4.14.8 All lube oil piping down stream of filter shall be series 300 Stainless Steel.
4.14.9 External drain & vent piping shall be Carbon Steel and not less than 1" nominal size.
However, all the internal drains shall be SS 300 series material.
4.14.10 Mercapton/ THT dosing is envisaged hence all materials coming in contact with gas
shall be compatible to such gas with Mercapton/ THT dosing and be of compressor
manufacture's standard. The use of SA 515 material is prohibited.
4.14.11All piping after coalescent filter at compressor discharge shall be of SS 316.
5.0
ELECTRICS
5.1
Starter/Control Panel/ Control philosophy
5.1.1
Doors shall be interlocked isolator. Panel complete with start and stop push buttons,
hours run meter, power on and fault indication lamps, fault reset button. All
necessary timers and intrinsically safe relays to control the system on an automatic
starting and stopping basis shall be provided. The compressor package control
system shall be designed for unattended operation in automatic mode and in case of
any fault it will go in a safe mode.
5.1.2
The priority fill systems (in
Bidder ’s scope) shall ensure the filing of vehicle,
storage cascades & LCV in correct order. 7-bank priority panel shall be envisaged
for compressor package.
5.1.2
Compressor Package shall be provided with a PLC based LCP outside the package
enclosure housed in weatherproof housing (min. IP55) suitable for hazardous area
classification. All the interlock, monitoring and controlling of the CNG compressor
package shall be done through PLC based control system which will be of proven
type and make. PLC hardware shall be in accordance with IEC-61131-2 and PLC
software shall be in accordance with IEC-61131-3. PLC shall be provided display &
scrolling facilities to view process & machine parameters. All source & object codes
including logic flow chart, ladder diagram etc are to be furnished by the Packager and
PLC shall be capable of incorporating function Block diagram, sequence function chart,
ladder diagram and structural text as per IEC 61131-3. Laptop shall not be in the
Bidder s scope. PLC shall be suitable for recording of compressor parameters as
indicated in instrumentation and all other parameters that are recommended by the
compressor manufacturer for recording on hourly basis for the last 24 hours. Also
PLC shall be able to record the last 10 Alarms of abnormal operations. PLC shall be
suitable for interfacing with printer (HP Laser printer) for getting the printout of the
parameters recorded (as mentioned above) for the last 24 hours. The units of
measurement for flow shall be Kg/hr, for pressure shall be Kg/cm2(g) or and for
temperature shall be degree C. PLC shall be of modular in construction with 100%
mounted spares covering cards, isolators and zener barriers etc. PLC components /
system shall be tropicalised, MIL standard adopted with complete wiring and
necessary terminals. Wiring to be colour coded with cross ferruling in position. PLC
shall be capable of carrying out on line routines calculations as per AGA (latest) mass
to standard volume conversion as per requirement. PLC shall be configured as a
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 11
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remote terminal unit of supervisory computer and data acquisition system complete
with dial up connectivity. One card for transferring and accessing data from minimum
twenty devices with RS 485 port shall be provided. The PLC System offered shall be
shall be capable of:
a) Compressor Control & Emergency Shut down
b) Fire and gas detection and monitoring
c) Data acquisition, monitoring & logging
d) Annunciation
5.1.4
The compressor package control system shall be so designed that the first item to go
into alarm condition shall lock out to indicate the cause of the trip though the cause of
the trip may have disappeared. The lock out condition shall be manually reset. A
change over set of contacts shall be provided for Owner’s use to give a remote
indication of alarm and trip. In auto mode, compressor shall start automatically in
case high bank storage pressure falls below 220 kg/cm2 and stop as soon as
pressure in all three banks of stationery cascade and mobile cascade reaches 255
kg/cm2. The priority fill system (In Bidder ’s scope) shall ensure the filling of vehicle,
storage cascade and mobile cascade in correct order. Control system shall be
designed such that in case of any fault, discrepancy or abnormality, it will go in safe
mode. Pressure transmitter on priority panel shall be of smart type with LCD. All
controls shall be made in fail-safe mode & failure of any control shall not lead to
operation of equipment/ system in unsafe condition. In case of fault, a warning hooter
shall operate, the sound of which should be audible at distance of at least 15 meter.
Further the fault alarm and emergency stop PB shall be duplicated in the CNG station
control room. Acknowledgement/resetting of fault shall be possible only from
compressor panel. Emergency stop PBs shall be mushroom head turn lockable type.
Once the fault is acknowledged or compressor is under normal maintenance, the
valves of priority panel shall take the position so that gas available in the stationary
CNG storage cascade can be dispensed.
The points to be monitored for down stream of dispenser panel shall be
Pressures in each bank of stationary storage cascades.
Pressure at outlet for dispenser.
Pressure at outlet for mobile cascades.
Control Air Pressure
Indicators, Alarms and Trips as per Equipment Data Sheets.
The Local Control Panel shall be provided with following display and control systems :
e)
f)
g)
h)
i)
j)
5.1.6
Display of all compressor parameters including temperature and pressure
Display of all flow parameters.
Display of all alarms and alerts.
Compressor Control & Emergency Shut down
Fire and gas detection and monitoring
Annunciation
Emergency Shut Down
Bidder shall provide emergency shut down (ESD) system in the control room as well
as locally mounted near the Compressor. Fail safe system shall be designed and
incorporated to isolate cascade storage from dispenser, stop compressor, isolate the
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 12
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0
compressor suction line . ESD switch shall have to be manually reset to restart the
compressor package again.
5.3
Electric Motor And Drive Arrange
5.3.1
Electric motors
5.3.2
a)
Type of drive
b)
c)
d)
e)
f)
g)
h)
i)
j)
k)
l)
m)
Protection
Insulation
Mounting
Specification Standard
Supply Voltage (assumed)
Synchronous Speed
Motor rating
Motor efficiency
Power factor
Speed of motors
Nos. of hot starts of motors
Coupling type
Totally enclosed fan ventilated (TEFV) high
efficiency as per IEEMA standard-19-2000
Explosion proof IP.55
Class “F” with Class “B” temperature rise
Horizontal foot mounting
By
Bidder
440 + 10% volt, 3 phase, 50 + 2%Hz
By
Bidder
By
Bidder
%
By
Bidder
By
Bidder
4 per hours
By
Bidder
Motor accessories
a)
b)
c)
d)
e)
f)
Compressor grooved flywheel
Motor grooved drive pulley
Drive vee belts
Flexible coupling for direct drive
Drive guard
Adjustable motor slide rails for vee belt tensioning
5.4
Electrical supply parameters :
5.4.1
All electrical shall be suitable for the following supply conditions.
Electrical operating voltage
Electrical control voltage
:
:
Tolerance of voltage
Tolerance of frequency
:
:
AC, 3 phase, 415 V, 50 Hz
230 VAC, 50 Hz (under bidder ’s
scope)
+ 10%
+ 2%
5.4.2
PURCHASER shall provide 415 V, 3 phase electrical connection at only one
designated point for electric driven compressor package.
Bidder shall distribute
electric power to all equipment and control systems by providing a suitable switch
gear distribution panel. Suitable flameproof double compression glands shall be
provided for termination of main cable in main electrical panel. Exact size and
specification of cable glands will be indicated to successful
Bidder within 2
weeks of order placement and receipt of electrical single line diagram from
Bidder
.
5.4.3
All solenoid coils, power contactors etc. shall have operating voltage of 240VAC, and
50 Hz.
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 13
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0
5.4.4
Motor shall be TEFV squirrel cage type in standard frame size as per IS/IEC rated for
continuous duty with high efficiency as per ( EFF2) and designed for star/delta
starting. Motors shall be suitable for starting under specified load conditions with 75%
of rated voltage at the terminals. Motor torque shall be compatible with speed torque
curve of compressor. Motor windings shall be class ‘F’ insulated with temperature
rise limited to class ‘B’. Minimum degree of protection of motor enclosure shall be
IP55 as per IS. Motors for use in hazardous areas shall have protection Ex(d) as per
area classification.
5.4.5
The motor name plate rating (exclusive of service factor) shall be minimum 115% of
the greatest HP required under any of the specification operating conditions. All
motors shall be tested in accordance with IS/IEC.
5.4.6
Each motor shall compulsorily be protected with thermal-magnetic over current relay.
5.4.7
The electrical power supply distributions panels, switchgear panels and starter
panels shall be skid mounted construction, weather and vermin proof suitable for
installation in the compressor package. There shall be FLP push button panel
available at the compressor skid. The switch gear shall have one incomer and
adequate number of outgoing feeders. The incomers shall be provided with suitably
rated switch fuse unit, ammeter, voltmeter with selector switch, energy meter, PF
meter, etc. Motor feeders shall be provided with heavy duty switch. HRC link type
fuses, contactors (AC-3 duty), bi-metal relay, single phase preventor, ammeter, push
buttons, earth leakage relays, indication lamps for Start/Stop/Trip, etc. Adequate
number of MCB feeders for control and lighting shall be provided. Bidder shall furnish
single line diagram of the panel with the bid.
5.4.8
There shall be separate panel for main incoming switch (MCCB) and the starter of
main motor. There shall be a minimum clearance of 30 mm between the two power
contractors.
5.4.9
The compressor panel shall have phase reversal relay to detect the electrical supply
phase sequence and trip the compressor on wrong phase sequence.
5.4.10 Bidder s shall make provisions for earthing of the complete package as required as
per IS. All electrics shall comply with latest IS/IEC. Epoxy based paints shall be
applied on all electrical equipments. Bidder ’s scope shall include obtaining statutory
approvals for the complete package, wherever necessary.The present approving
authority is Head CNG, Rupantarita Prakritik Gas Co. Ltd (RPGCL), Bangladesh.
5.4.11 Bidder to note that all control electronic / electrical / instrumentation, shall be
capable of with standing voltage fluctuation within +/- 15 % of rated voltage (230
VAC). In case, the cards / components are not capable of withstanding above voltage
fluctuation, the scope of supply of compressor package shall include an uninterrupted
power supply (UPS) / voltage stabilizer (VS) / Voltage conditioner (VC), so as to take
care of the voltage fluctuations. Each compressor packager shall provide individual
UPS / VS /VC in such a condition.
5.4.12 Earthing: Metallic part of all equipment not intended to be alive shall be connected to
earth as per provisions of IS: 3043/IEC recommendation. Grounding of all electronics
shall be separately connected to earth using insulated copper wire. Grounding of
electronic equipment shall not be connected to earthing for electrics or equi-potential
bonding.
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 14
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0
5.4.13 Pre-lubricated sealed bearings for all motors may be considered provided a full
guarantee is given for 4 to 5 years of trouble – free service without necessity of relubrication.
5.4.14 Preferred makes of electrical equipments shall be as follows:
a)
FLP motors
-
ABB/Crompton Greaves / Kirloskar
/ Siemens / Bharat Bijlee.
b)
FLP Switchgear
-
Baliga/FCG/FPE/Sterling / Flexpro
c)
Switches/fuses/contractors
-
L & T/GEC/Siemens
d)
PLC
-
Allen Bradley, GE Fanuc,
Siemens – Positronics
e)
IR Gas detectors
-
General Monitors / Crowcon / Tata
Honeywell / Sieger
f)
UV Flame detectors
-
General Monitors / Crowcon / Tata
6.0
INSTRUMENTATION
6.1
All Instruments shall be suitable for an area classification of “Class 1, Group D,
Division 1 as per NEC” OR “Zone 1, Group IIA /IIB as per IS/ IEC”.
6.2
All package mounted transmitters & temperature element shall be intrinsic safe "ib"
as per IEC 79-11 and solenoid valves, switches and related junction boxes shall be
flame proof “D" as per IEC 79-1. Other special equipment's/instruments, where
intrinsic safety is not feasible or available, shall be flame proof as per IEC 79-1.
6.3
The compressor package instrumentation & control is to be configured for manual as
well fully automatic control system including starting, shutdown as applicable for
unattended operation. Control system shall be PLC based of a reputed make and
proven type.
6.4
Electrical instrumentation shall be certified by a recognized authority such as
BASEEFA, PTB, LCIE, CESI, INIEX, CMRS or any agency approved by Bangladesh
Government.
6.5
All the instrumentation shall be capable of operating for full range of operation.
6.6
Separate junction boxes shall be provided for each type of signal i.e., analog, digital,
solenoids, RTD thermocouple and power supply.
6.7
No cable shall share power & signal.
6.8
All pressure gauges shall be provided with block & bleed valves and have accuracy
of + or - 1% of FSD.
6.9
The temperature gauge shall be generally mercury in steel filled type, weatherproof &
with capillary extension. Capillary tubing shall be min Carbon Steel with CS flexible
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 15
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0
armoring. The gauge shall have accuracy of + or - 1% FSD. The range shall be 1.5
times of operating temperature.
6.10
Units of measurement shall be:
GAS FLOW
PRESSURE
TEMPERATURE
-
SM3/hr & kg/hr
kg/cm2 g
0
C
6.11
Two nos. Of RS 485/RS232 Serial Communication Ports shall be provided for
Hooking Up the PLC to SCADA & Laptop PC in Future. Also, Vendor shall include 2
sets of all relevant Software (Windows XP/Windows 2000 based) for accessing the
PLC through Laptop PC and SCADA.
7.0
CABLING
7.1
Cabling inside the enclosure shall be of 1.5 Sq. mm core.
7.2
Cabling outside enclosure shall be minimum 2.5 Sq. mm core.
7.3
Cables shall be 1100-volt grade, stranded copper conductor, PVC insulated, PVC
sheathed, round wire armoured, FRLS cables.
7.4
Cables shall be terminated using double compression type metallic frame proof
glands and copper lugs.
7.5
Spare cores to be kept in each control cable.
7.6
All JB’s shall have flame proof metallic enclosure
8.0
INSPECTION AND TESTING
8.1
General
a)
b)
c)
d)
Inspection and Test Requirements have been spelled out in respective
Equipment Data Sheets and this Technical Specification.
Bidder shall confirm compliance to all inspection and testing requirements
stipulated therein and include the inspection charges in the lump sum cost.
Owner/consultant shall witness tests as per data sheet and this specification.
The Bidder shall notify the timing of such inspection and testing at least 15
days in advance to PURCHASER/CONSULTANT. PURCHASER/
CONSULTANT shall depute their representative for witnessing the tests.
Bidder shall submit detailed Test Procedure for Approval of the Purchaser two
months in advance of the actual date of conducting each test.
8.2
Mechanical running test (MRT)
8.2.1
The MRT for the each compressors shall be carried out in presence of
PURCHASER/CONSULTANT with job or shop driver including complete job driving
system i.e., job driven V-belt, job pulleys etc., for 4 hours continuously at shop of
compressor manufacturer. The compressor need not be pressure loaded for MRT
test. During this test following shall be recorded at agreed intervals.
-
Vibration levels measured on cylinders and frame
Bearing temperature
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 16
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0
-
Oil cooler inlet and outlet temp
Subsequent to satisfactory run the compressor shall be examined as per standard
procedure & following shall be examined as minimum:
Bore & other parts by opening a valve
Piston & cylinder clearance
Visual examination of position rod, controlled guide bore without dismantling
Big end and small end bearing
If any of part found damaged, all similar components shall be stripped for inspection.
The MRT test shall be repeated after replacement of such parts.
8.3
Mechanical String Test
Mechanical String Test for 4 hrs shall be performed at packager’s shop
before dispatch in presence of Purchaser/Consultant. This test can be
clubbed up with the Mechanical Run Test of compressor as specified above,
provided the job driver, lube Oil system is used for the test. Air/N2 can be
used for string test purpose if natural gas is not available in the shop. All
parameters including discharge pressure shall be demonstrated. One
compressor shall be string tested.
8.4
Package Performance Test
Bidder shall assemble the complete package including auxiliary systems,
instrumentation, safety devices within the enclosure at his shop and dispatch, The
machine shall be accepted after the performance test at site.
Complete package shall be performance tested as a module whereby along with
electric motor & compressor performance (PTC - 9) Bidder shall demonstrate all
controls, shutdown, trips / alarms etc.
The test shall be the basis of assigning penalties on the Bidder, acceptance /
rejection of the package thereon. Bidder shall submit the detail test procedure for the
same, which shall be approved by PURCHASER/CONSULTANT. The test for the
package shall be witnessed by PURCHASERL/CONSULTANT
9.0
PERFORMANCE GUARANTEES, PRICE LOADING AND COMPENSATION FOR
UNDER PERFORMANCE
9.1
This section describes the guaranteed parameter, which the CNG compressor
package must fulfill, the penalty for shortfall in guaranteed parameters and rejection
of compressor package by the Purchaser.
9.2
The guaranteed parameter shall be adjusted to account for variation in gas
composition and prevailing ambient condition during testing.
9.3
Necessary calculations correction curves shall have to be furnished by Bidder along
with bid, which shall be final & no deviation shall be permitted afterwards.
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 17
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0
9.4
In case of any inconsistency in manufacture and/or operation of supplied
compressor package, Bidder shall at his own risk and cost, eliminate the defects to
the satisfaction of Owner.
Bidder shall furnish guaranteed value as per Annexure –I enclosed with this
specification
9.5
Compressor Capacity
9.5.1
Bidder shall guarantee 800 SCM/hr capacity for compressor with design case gas
composition, suction pressure of 1.05 kg/cm2g, suction temperature of 300 C ,
discharge pressure of 255 kg/cm2g with the no negative tolerance for errors in
instruments and measurements.
Since the compressor suction pressure varies from 0.843 kg/cm2g to 1.05 kg/cm2g
the compressor shall be sized / selected for specified capacity of 800 SCM/hr
corresponding to 1.05 kg/cm2g (with no -ve tolerance) .
The same shall be used to establish the capacity at test bed during package
performance test.
9.6
Loading & Compensation Criteria
9.6.1
Price Loading Criteria of compressor
The guaranteed KW including all losses such as mechanical, transmission, power
absorbed by compressor driven auxiliaries like cooler fans , auxiliary lube oil pump
etc but excluding air compressor and ventilation fans at guaranteed flow with zero
percent positive tolerance, of all the technically qualified Bidder s shall be compared.
On the basis of the lowest KW quoted by the Bidder , other shall be loaded as
follows;
Total cost of the package for evaluation purpose (A+B+C+D+E);
Where
A:
B:
C:
D:
E:
Capital cost of each package including cost of erection, commissioning, and
special tools and commissioning spares.
Cost of mandatory spares
Differential operating cost as defined hereunder
Cost of one year O&M during warrantee period and Annual Maintenance for 2
years post warranty from date of completion of one warrantee period
Charges for training of 4 persons
Differential operating cost (Ex)
Ex (in Rs) = (Eb-E0) X Re X 6570 X DF
Where,
Ex = Differential electric cost.
Eb = Average total power quoted by the
Bidder to be loaded for compressor
package in KW
E0 = Lowest average total power quoted by the any
Bidder for compressor
package in KW.
Re -- Unit rate of electricity i.e. Rs 4.27 per KWH
DF = 3.274 (Discounting factor based on 5 years of operating years)
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 18
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0
Maximum loading shall be limited to 5% of the total quoted cost i.e. A+B as defined
above.
For estimate purpose power consumption as indicated in the original bid shall be
taken.
9.6.2
Compensation against performance of compressor
During compressor package performance test, in case the absorbed electric power at
guaranteed parameters for entire compressor package including auxiliaries but
excluding air compressor and ventilation fans, is more than the guaranteed absorbed
power mentioned at the time of bidding, compensation on the following basis shall be
imposed on the Bidder :
EY (in Rs) = 1.5 x (ET-EG) x Re x 6570 x DF
Where,
EY = Differential electric cost.
ET = Average total power absorbed by the compressor package in KW, at the
time of performance test the compressor package at site.
EG = Total absorbed power guaranteed for the complete package at the
time of bidding.
Re -- Unit rate of electricity i.e. Rs 4.27 per KWH
DF = 3.274 (Discounting factor based on 5 years of operating years)
The total penalty to be charged for non-conformance of guaranteed parameter shall
not exceed 10% of the ordered value i.e. A+B as defined above
No advantage shall be given for higher performance than the guaranteed. Bidder
shall indicate the Guarantee parameter in his offer as per Annexure–I of this
specification.
9.6.3
Compensation against Gas leakage
The bidder shall design the compressor package so that no venting and leakage of
gas takes place. In case of loss of gas through venting or leakage, the purchaser
shall be compensated @ Tk 15/Kg. The amount will be deducted from O&M
monthly running bill in 1st year of warrantee period. However for 2nd and 3rd year
the compensation shall be 4 times the compensation of last 6 months in warrantee
period.
10.0
PAINTING AND PROTECTION
10.1
Packing shall be sufficiently robust to withstand rough handling during ocean
shipment & in-land journey. Sling points shall be clearly indicated on crates.
10.2
The external steel surfaces of equipment & piping shall be painted. The paint shall be
chosen, primed and applied as to have a service life of ten years. The exterior of
equipment and container is required to be corrosion free for ten years and to have
fade free life without oxidation of paint surface for five years in an environment of
bright sunlight with an intense UV content. The Packager to specify the Grade of the
paint intended to be used.
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 19
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0
10.3
The headers of air-cooled exchanger shall be galvanized.
11.0
ERECTION, TESTING AND COMMISSIONING AT SITE
11.1
Bidder shall be responsible for erection commissioning; performance test, field noise
level test and field trial run of all compressor packages at site.
11.2
Bidder shall be liable to pay all local taxes, levies applicable and comply with rules,
laws prevailing in Bangladesh.
12.0
FIELD TRIAL RUN
Bidder shall conduct a field trial run of each compressor package for minimum 20
hours continuous duration near the guaranteed points in which satisfactory operation
of complete package together with all accessories/auxiliaries controls shall be
established for specified operating conditions prior to the start of one year operation
and maintenance period as defined in the contract. During the field trial run the
Bidder will be allowed a maximum of THREE attempts to complete the abovespecified test. The Equipment shall be considered commissioned after the successful
completion of Field Trial Run.
13.0
SPARE PARTS, SPECIAL TOOLS AND TACKLES
13.1
All spare parts, special tools & tackles for erection and commissioning and one year
operation and maintenance of compressor package shall be supplied by the
packager and shall form his scope of supply.
13.2
A brand new separate set of min 10 nos special tools and tackles as required for
Normal maintenance beyond the contractual one year operation period shall be
supplied by the packager, which shall form the property of PURCHASER. Special
st
tools & tackles used by bidder in 1 year shall not be considered as old.
14.0
DATA AND DRAWING
a.
b.
c.
d.
e.
Drawings and Data shall be furnished in conformity with the Bidder Data
Requirements Forms attached with Enquiry Specifications.
Bidder shall furnish all the information at the time of bidding as specified in the
relevant Bidder Data Requirement (VDR) forms
The data requirement after placement of Telex of intent is indicated in the
Bidder Data requirement Forms for the respective equipment, including the
number of weeks within which this data is to be provided. Bidder shall confirm
that all data as required shall be furnished by him and shall indicate the
Bidder ’s promised data in the columns provided.
After the placement of TOI, a conference (kick off meeting) will be held at such
date and at such place, as may be mutually agreed upon between the
Bidder and the Purchaser. The intent of this conference shall be to discuss /
clarify various requirements and finalize the modus operandi for execution of
the contract within the scheduled delivery period.
Bidder shall furnish the Drawings/Documents for Purchaser’s Review /
approval as per the Bidder
Data Requirement (as specified in the
Specifications/ Bidder data requirement forms). The review comments for
major and critical drawings (such as system P&ID’s, General Arrangement
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 20
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0
Drawings, Foundation Drawings, Performance characteristics, Pulsation and
Vibration Study Reports, Tensional Analyses etc.) shall be discussed across
the table at such date and place as may be mutually agreed between the
Purchaser and the Bidder.
15.0
OPERATION & MAINTENANCE OF COMPRESSOR UNDER ANNUAL
MAINTENANCE CONTRACT
The date of successful commissioning and performance test at site will considered
date of start of the annual maintenance contract. However, bidder shall be paid 50%
O&M charge for operating and maintenance the compressor. The bidder must follow
the OPERATION & MAINTENANCE REQUIREMENT as stated below but not limited
to and ensure to provide trouble free services to the satisfaction of the owner.
1.0
Accommodation/transportation/medical
The bidder shall make his own arrangement for the accommodation of his
personnel at respective locations and subsequent transportation arrangement for
them from their place of residence to work place or any other place as required
and company shall have no obligation in this respect. The company shall not be
responsible for providing any medical assistance to the bidder personnel.
2.0
Discipline:
The bidder shall be responsible for the discipline and good behaviour of all his
personnel deployed in the services contracted out and should any complaint be
received against any of his employee, he shall arrange to replace such persons
within 24 hours of notice issued by the Engineer-in-Charge. The decision of the
Engineer –in-Charge in this matter shall be final and binding on the Bidder.
3.0
Gate pass/identity card
The contract shall arrange to supply / renew identity card to his workforce at his
own cost, if so required by the Purchaser for security or for any other reasons.
Those Bidder’s personnel shall be required to carry their respective identity cards
while on duty and produce on demand.
4.0
Right to get services carried out through other agencies.
Nothing contained herein shall restrict Purchaser from accepting similar service
from other agencies, at its discretion and at the risk and cost of the Bidder, if the
bidder fails to provide the said services any time.
5.0
Sub-letting of contract
No part of this contract nor any share or interest therein in any manner or extent,
will be transferred or assigned or sub-let, directly or indirectly to any person/firm or
organisation without prior permission of Purchaser.
6.0
Compliance of laws
The bidder deploying 20(twenty) or more workmen as contract labour shall have to
obtain license from appropriate licensing authority, if required. The bidder (which
shall include the Contracting firm / company) shall be solely liable to obtain and to
abide by all necessary licenses from the concerned authorities as provided under
the various labour laws legislation’s including labour license from the competent
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 21
REV
0
authority under the Contract Labour (“Regulation & Abolition”) Act or similar act
applicable to land of law.
The Bidder shall be responsible for necessary contributions towards PF, Family
Pension, ESIC or any other statutory payments to Government Agencies if
applicable under the laws in respect of the contract and personnel deployed by the
bidder for rendering services to PURCHASER and shall deposit the required
amount with the concerned statutory authorities on or before due dates.
The bidder shall not engage /deploy any person of less than 18 years under this
contract and the persons to be deployed should be physically and mentally fit.
The installations where job is to be carried out are live and have hydrocarbon
environment. Bidder shall comply with all safety and security rules and regulations
and other rules laid down by PURCHASER for its operation. It shall be the
duty/responsibility of the bidder to ensure the compliance of fire, safety, security
and other operational rules and regulations by his personnel. Disregard to these
rules by the Bidder’s personnel will lead to the termination of the contract in all
respects and shall face penal/legal consequences.
The bidder shall arrange for insurance of all this workers engaged on the job as
per the relevant Acts, rules and regulations, etc. In case by virtue of provisions of
worker’s compensation Act, or any other law in force. PURCHASER has to pay
compensation for a workman employed by the bidder due to any cause
whatsoever the amount so paid shall be recovered from the dues payable to the
bidder and /or security deposit.
7.0
The officer in charge shall have power to
i)
ii)
iii)
8.0
Issue the bidder from time to time during the running of the contract such
further instructions as shall be necessary for the purpose of proper and
adequate execution of the contract and the bidder shall carry out and
bound by the same.
During the currency of this contract, PURCHASER can increase and/or
decrease the number of the services / technicians to meet contractual
requirements.
Order the bidder to remove or replace any workman whom the company
considers incompetent or unsuitable and opinion of the company
representative as to the competence of any workman engaged by the
bidder shall be final and binding on the Bidder.
Repatriation and termination
PURCHASER shall reserves the right at any time during the currency of the
contract, to terminate it by giving 30 days notice to Bidder, and upon expiry of such
notice period the bidder shall vacate the site/office occupied by him immediately.
9.0
Indemnity agreement
Bidder shall exclusively be liable for non-compliance of the provision of any act,
laws, rules and regulations having bearing over engagement of workers directly or
indirectly for execution of work and the bidder hereby undertake to indemnify the
company against all actions, suits, proceedings, claims, damages demands,
losses, etc. which may arise under minimum wages act, payment of wages act,
workman compensation act, personnel injury (compensation insurance) act ESI
Act, Fatal Accident Act, Industrial Dispute Act, Shops and Establishment Act,
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 22
REV
0
Employees Provident Fund Act, Family Pension and deposit Linked Insurance
Scheme or any other act or statutes not herein specifically mentioned but having
direct or indirect application for the persons engaged under this contract. (A
certificate to this effect shall be submitted by the bidder immediately on receipt of
LOA).
10.0
Compensation for non-fulfilment of obligation under Annual Maintenance Contract
(AMC)
During the AMC in warranty period of 1 year, the bidder must ensure that the
compressor is available for a minimum of 18 continuous hours a day and 365 days a
year for performing the required services as defined in the tender document. The
timing of 18 hours will be decided by client. If the bidder fails to provide the required
services for any day, The bidder shall compensate the owner @ Rs 2950/- per hr for
compressor for the default period. For calculation of default period will be recorded
jointly by the bidder and owner on daily basis. However, compensation will be on
monthly cumulative basis rounded to nearest hour. During 6 hours bidder can
carryout cleaning and preventive maintenance. Bidder in consultation with owner can
club these 6 hours for two consecutive days for 2 times a month only without any
penalty.In case bidder has utilized less down time of the compressor package than
that allowed, the bidder can carry forward only max unutilized 9 hours downtime to
immediate next month.
11.0
Bidder’s responsibility
The bidder shall depute his Supervisor for supervision of the services to receive
instructions from Engineer-in-Charge or his representative.
12.0
Employment liability of Bidder
The bidder shall ensure and will be solely responsible for payment of wages and
other dues latest by 7th of the following month to the personnel deployed by him in
the presence of the Company’s representative.
The bidder shall be directly responsible and indemnify the company against all
charges, claims, dues etc. arising out of disputes relating to the dues and
employment of personnel deployed by him.
The bidder shall indemnify the company against all losses or damages caused to it
on account of acts of the personnel deployed by the Bidder. The bidder shall ensure
regular and effective supervision of the personnel deployed by him.
The bidder shall be liable for making good all damages/losses arising out of loss or
theft of each handled, leakage, pilferage of any office, furniture equipment fitting and
fixtures what-so-ever as may be caused directly or indirectly by the engaged persons
through him/work carried out by them.
13.0
General
The operation and maintenance services shall be provided in terms of shift pattern on
the round the clock basis as mentioned in the tender document.
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 23
REV
0
i)
ii)
iii)
iv)
v)
vi)
vii)
viii)
ix)
x)
xi)
xii)
xiii)
xiv)
xv)
The bidder shall deploy adequate number of technicians / supervisors /
Engineers / helpers as well as tools & equipment for smooth and proper
operation & maintenance of the compressors supplied in terms of the
contract. In case required to meet operational requirements, the bidder shall
augment the same as per direction of Engineer –in-Charge.
The bidder is required to carry out all services as mentioned in the Scope of
Services and Schedule of Rates on all the 365 days including Sunday and all
Holiday & around the clock.
The bidder shall allow weekly rest and daily working hours to his workmen as
per the relevant Act/Law/and Rule made thereunder. However, no work shall
be
left
incomplete/unattended
on
any
holiday/weekly
rest.
Technician/operators provided shall have minimum qualification of ITI.
Contract in person or his authorised representative shall provide the services
on daily basis to interact with Engineer-in-charge and deployed workman
The work force deployed by the bidder for O&M services at CNG
installation shall be of sound relevant technical professional expertise which
is otherwise also essential from the safety point of view of the personnel of
the bidder as well as for the installation.
Bidder has to ensure the safety of man and machine all the times.
Damages of equipment due to negligence will be recovered as per the
decision of Engineer-in-Charge, which will be final.
Regarding work completion, the decision of the Engineer-in-Charge will be
final and binding.
The bidder shall make his own arrangements to provide all facilities like
boarding and transport etc. to his workmen.
All personnel of the bidder entering on work premises shall be properly and
neatly dressed and shall wear uniform, badges while working on premises
of the company including work sites.
Bidder shall maintain proper record of his working employee’s attendance
and payment made to them.
The Bidder’s representative/supervisor shall report daily to the Shift-inCharge for day to day working.
All the safety rules and regulations prevailing and applicable from time to
time at the installations as directed by PURCHASER will be strictly adhered
to by the Bidder.
The rates quoted by the
Bidder must be inclusive of all the taxes,
duties, services tax, work contract tax and any other levies, Bidder’s share
of P.F. and insurance charges, Bidder’s profit and any other expenditure
etc.
It will be the responsibility of the bidder to pay as per the minimum wages
of the appropriate government applicable under the Minimum Wage Act.
The services shall be provided in terms of shift pattern on the round the
clock basis. The bidder is responsible to provide effective and efficient
services in all shifts and assure that there is no disruption in the services for
want of any resources.
The bidder shall establish a central control room to operate 24 hours, seven
days a week where complaint regarding non-performance of the
compressors in terms of the contract can be lodged. Further, the bidder
shall deploy adequate number of technicians/ supervisors / engineers at
various site offices in consultation with Engineer-in-Charge to provide
trouble free operation & maintenance of the compressors.
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 24
REV
0
xvi)
xvii)
All arrangements for communication from control room to the contract
person working on job under the services shall be the responsibility of the
Bidder, viz pagers / walky-talky.
All the jobs mentioned under scope of services shall be carried out as per
sound
engineering
practices,
work
procedure
documentation,
recommendation of the manufacturer and as per the guidelines/direction of
engineer-in-charge of authorised representative.
14.0
Operation and Maintenance of compressor packages during one year warranty
period
14.1
Scope of supply during one year warranty period:
All spares, consumables, lubricants, lubricating oil, coolant, sealant etc. required
for carrying out the Operation and maintenance of the complete compressor
package during the warranty period, including periodic, breakdown maintenance
for continuous and uninterrupted operation of the compressor packages shall be in
scope of the Bidder and shall be kept in stock. Electricity shall be supplied free of
cost to the Bidder .
14.3
Scope of services:
The Bidder shall have to keep all the spares, consumables, lubricants, coolant ,
etc required for carrying out periodic, breakdown, emergency maintenance etc of
the package so as to minimise the down time of the compressor. Non-availability of
compressor package for non-availability of spares shall be liable for compensation.
14.3.1
All tools, tackles and fixtures required for carrying out the above maintenance of
the compressor shall be in scope of the Bidder . The scope will also include
handling equipment like crane, forklift, chain pulley block, etc required during the
any maintenance activity.
14.3.2
Any expert services required from principal company or OEM shall be arranged by
the bidder or his agent at his own cost. All arrangements like phone, fax,
computer, Internet etc required for correspondences with above personnel shall be
arranged by the Bidder .
14.3.3
The periodic maintenance required to be done as per OEM recommendation shall
be taken up promptly. The Bidder shall provide the detailed preventative
maintenance schedule along with
a)
b)
c)
14.3.4
Estimated down time required for each type of maintenance schedule.
List of spares and their quantities required for each type of maintenance
schedule per compressor.
Type and number of man days required for each type of maintenance
schedule per compressor.
The bidder
shall plan such maintenance during non-peak hours and in
consultation with the Engineer In Charge (EIC) of PURCHASER. Any maintenance
that needs to be taken up shall be well planned in advance with due approval of
the EIC.
The Bidder shall use only OEM’s certified spares during maintenance. In case,
the schedule maintenance of the OEM manual recommends to check and replace
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 25
REV
0
parts like valve spring, valve plates, piston rings etc. after certain time interval,
same shall be replaced or used further only on approval from the PURCHASER
representative. However any unto ward consequences for non-replacement of
such parts shall be the responsibility of the Bidder .
14.3.5
All routine and periodic checks / inspections required to be done as per OEM
recommendation shall be done by the Bidder . Instruments required for above
inspection like vernier caliper, micrometer screw gauge, fill gauges, bore gauge etc
shall be in scope of the Bidder and these instruments shall be calibrated every
year.
14.3.6
All parts replaced by the
Bidder during the above contract period shall be
properly packed and handed over to PURCHASER, on replacement.
14.3.7
The bidder shall submit a copy of the daily / weekly / fortnightly / monthly /
bimonthly / quarterly and yearly performance report to the EIC in both soft and
hard form. All stationery including the printed material shall be in scope of the
Bidder .
14.3.8
All the maintenance / inspection job carried out by the Bidder shall
be
recorded and the report of the same shall be jointly signed by PURCHASER
representative.
14.3.9
The EIC will be final authority to take decision with regards to maintenance or
replacement of parts or any disagreement between the Bidder and PURCHASER,
during the execution of the contract.
14.3.10
The Bidder shall carryout calibration of gas detectors and flame detectors every
six months or earlier as per requirement or instruction of EIC of PURCHASER.
Also yearly calibration of all instruments such as pressure gauges, transmitters,
switches, mass flow meters etc shall be in the scope of the
Bidder . In addition
to the above all safety relief valves shall also be tested and calibrated every year.
Calibration shall be done from government-approved laboratories and shall be
carried out at least 15 days prior to the calibration due date.
The Bidder shall keep 1 set of safety relief valves in spare for the purpose of
calibration.
The Bidder shall carry out retesting of pressure vessels periodically as per Gas
Cylinder rules 1981 or Static & Mobile Pressure Vessels Rules.
The periodic maintenance required to be done as per OEM recommendation shall
be taken up promptly. The Bidder shall plan such maintenances during non peak
hours and in consultancy with the Engineer In Charge (EIC) of PURCHASER. Any
maintenance that needs to be taken up shall be well planned in advance with due
approval of the EIC. The scope shall include preparation of maintenance schedule
for carrying out the maintenance during the contract period.
14.3.11
In case, the schedule maintenance of the OEM manual recommends to check and
replace parts like valve spring , valve plates , piston rings etc. after certain time
interval, same shall replaced in the presence of PURCHASER representative.
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 26
REV
0
DESCRIPTION
(1)
A
A.1
A.2
A.3
A.4
A.5
A.6
A.7
A.8
A.9
A.10
B
B.1
B.2
B.3
B.4
DRAWINGS AND DATA REQUIRED FROM BIDDER
(All drawings & Documents shall be in English Language only)
PRINTS
Certified Information Required after
WITH
Purchaserr order
BID
Prints For records
Time from
for
&
FOI in
review Information
weeks (To
be indicated
by vendor)
(2)
(4)
(5)
(6)
GENERAL
Schedule for furnishing the vendor
data
A specific statement that CNG
compressor package is in strict
accordance with data sheet ,
technical specification & applicable
standards, In case of any deviation,
specific list with details & reasons for
each deviation.
General arrangement (GA) indicating
battery limit for electric and piping
connection & schematic diagram.
A statement on oil consumption and
minimum allowable oil temp.
Flange details of piping connection
with connection at battery limit.
Duly filled in experience record
program
Tentative load data for foundation
design.
List of sub-vendors with address /
phone/ fax no. For all bought out
items including electrical
&
instrumentation items.
Leaflet, catalogues for all items.
O & M manual
Compressor
Data Sheet duly filled in.
Catalogue of compressor
Typical cross sectional drg. and
literature to fully describe the details
of offering.
Compressor
Suction
Discharge valve
Piston rod gland packing
& piston rings.
Lube oil pump
V-belt & pulley with selection chart &
calculation
CONSULTANT
MECON Limited
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 27
REV
0
DESCRIPTION
(1)
B.5
B.6
B.7
B.8
B.9
B.10
B.11
B.11
B.12
B.13
B.14
B.15
B.16
B.17
B.18
B.19
C
C.1
PRINTS
WITH
BID
Cooler data / drg with thermal &
mech. design calculation
Design calculation, GA drgs for
pulsation dampner.
Gas hydraulic oil, lube oil piping &
instrument diagram
Torque angle diagram, piston rod
load VS crank angle.
Torque speed characteristic. Starting
torque of motor and compressor to
be superimposed over each other.
Acoustic / mechanical evaluation
report
Itemized price list of spares
Itemized list with price of spares for
erection / commissioning.
Item list of spares for one year
warrantee period
Drg. For testing arrangement & test
procedure to be adopted.
Quality Assurance Plan (QAP) and
Quality Procedure
Certificate for following
a)
Hydraulic testing
b)
Non destructive testing
c)
Material
composition
&
physical properties.
d)
Leak proofness
list of
frame
e)
Lube pump, frame oil pump,
hyd. Oil pump
Design / Actual assembly clearance
chart
Test records of following
a)
Mechanical running
b)
Performance test
c)
Noise level test
List of special tools & tackles for
installation & maintenance
Filled in air cooler data sheet
Electric motor
Performance curves
CONSULTANT
MECON Limited
(2)
Yes
Certified Information Required after
Purchaserr order
Prints For records
Time from
for
&
FOI in
review Information
weeks (To
be indicated
by vendor)
(4)
(5)
(6)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 28
REV
0
DESCRIPTION
(1)
C.2
C.3
C.4
C.5
C.6
C.7
C.8
C.9
C.10
C.11
C.12
C.13
D
D.1
D.2
D.3
D.4
D.5
D.6
D.7
D.8
D.9
D.10
D.11
D.12
D.13
D.14
D.15
PRINTS
WITH
BID
(2)
Technical literature / catalogue, Yes
selection charts, nomographs etc.
Filled in data sheet
Yes
Control schematics
Yes
Performance curves for auxiliaries
like fan, pump
Typical component cross sectional
drawing and literature to fully
describe the details of offering.
Test procedure
Mill test report
Manufacturer's test report
Stage inspection and test report
Final
acceptance
testing
and
performance tested records.
Schematic diagram with start up &
shut down procedure & logic
Inter connection & wiring diagram
INSTRUMENTATION
AND
ELECTRICS
Drawing & document index
Instruments and electric motor data
sheets
Start up and shut down write up
Start up & shut down inlet lock
diagram
Alarm & shut down list with set point
Control panel layout
Termination diagram, panel writing
detail
Loop schematic
Inter connecting diagram
Cable schematic
Bill of material
Inspection & test procedure
Test / Inspection certificate
List of relief valves with settings
P & ID of priority panel.
Certified Information Required after
Purchaserr order
Prints For records
Time from
for
&
FOI in
review Information
weeks (To
be indicated
by vendor)
(4)
(5)
(6)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Note:
1)
The above documents shall be given by bidder after placement of order and approval of
drawings/ document as explained above.
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 29
REV
0
a) 1 CD – of all documents/drawing in editable form;
transparency
d) 2 nos CD of software for compressor PLC
b) 6 sets of prints; c) one set of
For consultant : 1 CD – of all documents/drawing in editable form; b) 2 sets of prints
The drawing submitted with bid will not be considered as final. Successful
Bidder shall
submit final drawing as per scope defined in tender for approval.
GUARANTEED PARAMETERS ELECTRIC MOTOR DRIVEN COMPRESSOR
Sr No
1
2
Description
Compressor capacity in SM3/ Hr at suction pr 1.05 kg/cm2
discharge pr 255 kg/cm2 and gas inlet temp 30°C (required
✘✐✐ SM3/ hr)
Electric power consumed by compressor package including 0.843498
power absorbed by following auxiliaries along with
1.054372
transmission losses and at guaranteed flow at specified
conditions
Lube oil pump motor, Inter cooler fan motors, Cooling
water pump motors and Control panel
Electric power consumed by following auxiliaries shall not
be included in the above electric power consumption figure.
d) Air compressor motor
e) Exhaust fan motor
f) Enclosure lighting
3
Sound level of enclosure (required 65), dBA
Note:
Bidder shall indicate realistic power consumption. If power consumption indicated by
Bidder is less than 3% of average power consumption (APC) of all technocommercially successful Bidder s, his power consumption may be increased to APC
in case he fails to submit satisfactory power consumption calculation with supporting
test results.
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 30
REV
0
Natural Gas Composition
Component
Titas
N2
CO2
Methane
Ethane
Propane
I- Butane
N- Butane
I-Pantane
N-Pantane
Hexane Plus
Water lb/mmscf
0.58
0.54
96.25
1.79
0.45
0.1
0.06
0.03
0.01
0.19
3.6
NOTE:
1.0
2.0
Specific gravity:
Calorific value Net Kcal/SCM
=
=
0.59
to calculated by Bidder
CHECKLIST:
SCOPE OF SUPPLY RECIPROCATING GAS COMPRESSOR (ELECTRIC
MOTORDRIVEN) PACKAGE
Notes :
(i)
Bidder shall furnish all equipment, drivers, auxiliary systems, instruments and
controls and safety devices as per the enquiry document. Anything required over and
above what is specified, for safe and satisfactory operation of the equipment package
shall be included by the Bidder in his scope.
(ii)
(iii)
Bidder to write YES/NO against each item. Bidder is required to include complete
scope, as such 'NO' is not warranted. However, in case for any of the items if vendor's reply is 'NO', vendor should give reasons for the same:
's scope of supply shall include but not be limited to the following:
Description
Sr.
No.
1
1.1
1.2
1.3
1.4
Specified
by
Purchaser
(Yes/No)
Included by
Bidder
(Yes/No)
Remarks
Each Reciprocating Compressor package
complete with :
Suction / discharge pulsation dampers
Process equipment such as separator
complete with supports, manual drain with
double isolation valves, and automatic drain
system for separators
Yes
Yes
Air cooled, lube oil, cooling water, inter-stage
and discharge gas coolers with necessary air
cooling arrangement
Yes
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 31
REV
0
1.5
Combined or separate closed circuit cooling
water system for compressor (As required)
Yes
1.6
1.7
Lubricating oil system for compressor .
Safety relief valves on each stage of the
compressor
All interconnecting oil, gas, water, air piping
within the compressor package
All valves, tubing, fittings as specified and
required within the compressor package
Fuel supply hardware complete with SS piping,
control valves, Regulators, Flow-meter, filter,
vent/drain within the package suitable for the
specified fuel gas
Yes
Yes
1.8
1.9
1.1O
Description
Sr.
No.
1.13
1.14
Common skid for compressor and other
auxiliary systems
Acoustic enclosures for compressor for noise
attenuation up to 65 dBA @ 1 m distance fitted
with fire detection and extinguishing system as
specified
Yes
Yes
Yes
Specified
by
Purchaser
(Yes/No)
Yes
Instrumentation and control system complete
with PLC based control panel configured as
RTU of supervisory computer and data
acquisition, instrumentation as specified.
Yes
1.16
Cabling with cable trays for all the electrical
devices within the package.
Compressor inlet gas flow meter with electronic
volume correction and discharge mass flow
meters with associated equipment
Inlet
Pressure
Regulators
(Compressor
Suction)
Priority Panel (as specified) at Package
Discharge
Compressor gas inlet Y-type temporary
strainer, permanent inlet filter .
Yes
1.18
1.19
1.2O
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
Remarks
Yes
1.15
1.17
Included by
Bidder
(Yes/No)
Yes
Yes
Yes
Yes
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 32
REV
0
1.21
Y-type strainers, valves, sight flow indicators,
check valves, auto/manual drain traps as
required for various compressor auxiliary
systems, i.e. frame lubrication system, cylinder
lubrication, cooling water systems etc.
Yes
1.22
Yes
1.23
Manual package isolating valves and auto inlet
isolation valve
All couplings and guards
1.24
Flywheels, barring device
Yes
Description
Sr.
No.
2
2.1
2.2
2.3
Yes
Specified
by
Purchaser
(Yes/No)
Spares and Tools / Tackles
Mandatory Spares if specified in the TS ”
(Indicate separate price for each item)
Erection and commissioning spares as
recommended by
Bidder including lube oil
consumables etc. as required for erection &
commissioning of each compressor package.
Two year normal operation and maintenance
spares over and above the spares as required
during one year warranty period normal
operation and maintenance of each package
by the
Bidder
Yes
No
Quote for five year Normal operation &
maintenance spares (excluding lube oil etc.)
No
2.5
Special tools and tackles required for normal
operation & maintenance of each equipment of
compressor package as required and
recommended by the
Bidder
Yes
3
3.1
4
4.1
Inspection and Testing
As specified on the datasheets and tech. Spec.
Vendor data and drawings
All data & drawings as required per VDR format
5
Erection, commissioning and trial runs at
site of the complete package
Miscellaneous
Foundation and anchor bolts
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
Remarks
yes
2.4
6
6.1
Included by
Bidder
(Yes/No)
Yes
Yes
Yes
Yes
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 33
REV
0
6.3
6.4
7
Acoustical and mechanical analysis report &
pulsation study (apporoach-3)
Additional items not specified by Purchaser but
recommended by Bidder for safe smooth and
normal operation. (Bidder shall indicate
separate list of such items in his proposal)
One year operation maintenance contract
including all operating spares including
consumables
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
Yes
Yes
Yes
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 34
REV
0
DATA SHEET –COMPRESSOR
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
GENERAL: ■ Means required □ Means bidder shall indicate; if not indicated shall be in bidders scope
PROJECT: : CNG & CITY GAS PIPELINE PROJECT FOR Bangladesh .
OWNER: M/S HPCL
SERVICE: PROCUREMENT OF CNG COMPRESSORS
SITE:
NO. REQD : 2 ELECTRIC MOTOR DRIVEN
COMPRESSOR CAPACITY : 800 DRIVER: ONE ELECTRIC MOTOR
SCMH
NOTE: ■ SCOPE OPTION / INFORMATION SPECIFIED BY PURCHASER □ INFORMATION
REQUIRED FROM VENDOR.
□ MANUFACTURER:
□ MODEL NO.:
□ PLACE OF MANUFACTURE:
□ NO. OF STAGES: by Bidder □ CYLINDER ARRANGEMENT:
CYLINDER LUBRICATION: □ LUBRICATED □ MINIMUM LUBRICATED □ NON LUBRICATED
■ DRIVER TYPE: ELECTRIC MOTOR
□ DRIVE:
□V – BELTS (ANTI-STATIC TYPE)
□ DIRECT WITH COUPLING
□ DIRECTION OF ROTATION (FACING DRIVEN END): □ CLOCKWISE
□
COUNTER
CLOCKWISE
■ SITE / INSTALLATION DATA
SITE
DATA:
AMBIENT
MAX:
TEMP.
MIN:
0
( C):
RELATIVE MAX:
HUMIDITY
(%):
ALTITUDE
(M):
EARTH QUAKE ZONE V
WIND VELOCITY (KM/HR) 160 (MAX)
INSTALLATION:
■OUTDOOR
■ MOUNTED ON A COMMON SKID ALONGWITH DRIVER, ENCLOSED INSIDE A ACOUSTIC
ENCLOSURE
■ ELECTRICAL AREA HAZARD:
CLASS/ZONE: CLASS I ZONE I
DIVISION: I
GAS GROUP: D, GROUP IIA, IIB
APPLICABLE CODES AND STANDARDS
COMPRESSOR: Preferably API 618 PIPING: ASME/ANSI B 31.3
Latest Edition
PRESSURE VESSELS: ASME SEC- GAS COOLER: Preferable API 661
VIII, DIV-1.
OIL COOLER: TEMA `C’.
SOUND: 65 DBA @ 1M FROM ENCLOSURE
□AUX. ELECT. MOTORS:
CONTROL PANEL & INSTRUMENTATION REFER: TECHNICAL SPECIFICATION
UTILITIES DATA
□ Cooling Water (Not Available)
□ Type:
□ Supply temperature (0C):
□ Max return temperature (0C):
□ Fouling Factor:
□ Supply pressure (kg/cm²G):
□ Min. return pressure(kg/cm²G):
□ Design pressure (kg/cm A):
□ Design temperature (0C):
□ Water Flow Rates (m3/hr)
□ Electricity
Auxiliary Motors:
V
Ph
Hz
Oil Heaters:
V
Ph
Hz
Solenoid Valves:
A.C/D.C
V
Ph
Hz
Instruments:
A.C/D.C
V
Ph
Hz
Local Panel INDI./Alarm/Ann : A.C/D.C
V
Ph
Hz
Local Panel Trip Circuit: A.C/D.C
V
Ph
Hz
UPS: KVA,
V
Ph
Hz
□ Total Utility Consumption
3
□ Cooling Water (Make UP) (m /hr)
□ Power (Auxiliaries) (kW)
□ Power (Heaters) (kW)
REMARKS:
Vendor/
Bidder should estimate the requirement for all the Utilities and indicate the same in
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 35
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92
93
94
tabular form.
□ CONSTRUCTION / DESIGN FEATURES
Nomenclature
Unit
Cylinders
No of Cylinders Single Acting (SA) / Double
Acting (DA)
Cylinder Bore / Stroke
Rotational Speed
Linear
Average
Piston
Speed
Piston Displacement
Cylinder Liner (Yes / No)
Type of Cylinder Liner :
Dry/Wet Clearance Pockets Yes / No
Max.
Allow.
Working
Pressure, Cylinder
Max./Min Allow. Working
Temp., Cylinder
M.A.W.P, Cylinder @ Amb.
Temp.
Safety Valve Set Pressure,
Cylinder
G Helium Test Pressure,
Cylinder
Hydrostatic Test Pressure,
Cylinder
Cylinder Jacket Cooling
Type As reqd.
Cooling Media, Cylinder
Jackets Water /AIR
Max.
Allow.
Working
Pressure, Cyl. Jacket
Hydrostatic Test Pressure,
Cyl. Jacket
Suction
Nozzle
Size/Rating/Position
Discharge
Nozzle
Size/Rating/Position
Suction Valve Number
Average gas Velocity
Discharge Valve Number
Average gas Velocity
Type of Suction valve Type of Discharge valve Suction Valve Unloaders
Yes / No
Clearance
Pockets
Unloaders
Type
Piston Rod Diameter
Rod Reversal at Crosshead
Pin (min.)
Piston
Rod
Run
out
Operating
Max. Allow. Rod Load
Comp.
Tension
Rod Load Comp.
Tension
Rod Load at R.V Set Comp.
Distance piece / Packing
Type of Packing
Packing Vent Connected to
##
Packing Cooling
Type of Distance Piece
Cyl.
Side
Compartment
Purged
CONSULTANT
MECON Limited
Stage#1
Stage
#2
Stage
#3
Stage
#4
Stage#
5
mm / mm
RPM
M/sec
M3/ hr
kg/cm²a
0
C
kg/cm²a
kg/cm²a
kg/cm²a
kg/cm²a
kg/cm²a
kg/cm²a
M/sec
M/sec
Mm
Deg.
Kg
Kg
Kg
Kg
Kg
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 36
REV
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133
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136
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139
140
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142
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144
145
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147
148
149
150
151
Frame Side Compartment
Pressurized
Distance Piece purge gas
Pressure
Distance Piece purge gas
Flow
Distance Piece Vent to
Mm H2O
Nm3 /hr
Safe Height
Safe
Height
Safe
Height
Safe
Height
Safe
Height
Distance Piece Hydrostatic
kg/cm²G
Test Pressure
## Packaging should be connected to vent header Ref 7.19.4 of API-11
Frame
Replaceable
Crosshead
Shoes Yes / No
Crosshead Guide Integral /
Separate
Maximum Frame Rating
KW
Speed - Maximum/ Minimum Rpm
□ Lubrication Systems
Type of lube system
Piping material
Carbon Steel
Main Oil Pump Driven By :
Stainless Steel (all piping & valves Trims)
Standby Oil Pump, Driven By :
Auxiliary oil tank
Hand Operated Prelube/Priming Pump:
Oil Grade :
Suction Strainer
Lube Oil Consumption
Pressure Control Valve
Main Pump
Make :
Model :
Level Sight Glass on the Crankcase
Type :
Material :
Type of Oil Cooler :
Standby Pump
Make :
Model :
Size of Filter:
Type :
Material :
Oil Heater (if required).
Electric Heater with thermostat (Kw)
Thermostatic Valve
Type of Cylinder Lubrication
Lubricator Equipped With :
Lubricator Type: Manzel or Equivalent.
Level sight glass
Single plunger per feed
Oil heater electric with thermostat
Divider blocks type.
Electric Heater (Kw) (if required)
Lubricator Driven By :
Auxiliary Oil Tank (if required)
Compressor Shaft
Oil Grade :
Electric Motor KW
Oil System Capacity: (min 30 Hrs.)
All tubing and valves in SS
Oil Consumption. Rate
Double Ball Check valve on each
lubrication point
□ Cooling System
□ Static filled coolant system for
All Stage Cylinders
Including expansion chamber, Vents, Drains, Level Gauge, Piping, etc.
All Piping prefabricated□ Material
□Atmospheric thermosyphon cooling system for
All Stage Cylinders □
Including expansion tank, Vents, Drains, Coolers, and Level & Temp. indicators, Piping, etc.
All Piping prefabricated. □ Material
□Forced Cooling Water System
All Stage Cylinders
□ Packings
□ Oil Coolers
□ Gas Coolers
□ Including drains, Vents, flow & temp. Indicators, regulating & Isolation valves, complete piping to provide
one
□ Common inlet and one common outlet connections for Purchaser's interface terminated by a flanged
block valve
□ Block valve.
□ Each isolatable circuit to be provided with thermal relief valve.
All Piping prefabricated. □ Material
□ Self contained, forced circulation, closed circuit Cooling Water System (if reqd.)
All Stage Cylinders □
□ Packing□ Oil Coolers □ Gas Coolers
□ Including drains, Vents, flow & temp. Indicators, Temp. Control Valve, Regulating & Isolation valves,
complete piping
□ Main circulating pumps with drivers & suction strainers □ Single Coolers
□ Reservoir (Make Up) □ Heater (if required)
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 37
REV
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172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
□ Pumps, Reservoirs, Coolers etc. to be mounted on a common skid as to make a separate console.
□ Material of piping:
□ Type of coolant:
□ Jacket cooling
□ Gas Piping System
□ Vendor's Supply Includes:
□ Separator
□ Pulsation suppression equipment as per ‘next’ page
□ Suction Filter:
□ Temporary Strainer on Compressor Suction
□ Type of Strainer:
□ Relief Valves: on compressor □ suction □ Inter-stage □ on compressor
discharge
□ Check Valve on Discharge Line (compressor valve design, and suction
line)
□ Process Gas Coolers Complete With Manual Drain Valve
□ Separators Complete With Manual/ Automatic Drain Values
□ Process Gas Piping
□ Supply starts at inlet flange of CNG PACKAGE
□Terminates after priority panel with isolation valve
□ Materials:
□ By-Pass Line Piping
□ Between
□ Gas cooler
□ Interconnecting Piping Between Packing Vents, PSV Relief terminating to Vent Recovery
System.
□ Interconnecting piping between distance piece terminating to Vent Recovery System upto
package B/L
□ Interconnecting piping between Drains terminating as a single point
□ Interconnecting piping between Instrument Air terminating
□ Pulsation Suppression Equipment
Stage #:
Stage#1
Stage#2
Stage#3
Stage#4
Stage#5
Suction
Puls.
YES
Equipment
Required
Yes/No
Inlet
Pressure
Residual Peak to Peak Pulsation %
As per API 618 ( APPROACH –3 ), Cl 3.9.2.7
Inlet Nozzle
1.3XMAWP
1.3XMAWP
Size
/
Rating/Posit
ion
Discharge
Nozzle Size
/
Rating/Posit
ion
Design
Pressure
Kg/cm²a
Design
Temperatur
e 0C
Volume
Material
: SA 516 Gr.60
SA 516
SA 516
SA 516
SA 516
vessels
Gr.60
Gr.60
Gr.60
Gr.60
Internals
Corrosion
3
3
3
3
3
Allowance
mm
Hydrostatic
1.3XMAWP
1.3XMAWP
1.3XMAWP
1.3XMAWP
test
1.3XMAWP
Pressure
kg/cm²,g
Discharge
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 38
REV
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228
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231
232
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234
235
236
237
238
239
240
241
Puls.
YES
YES
YES
YES
YES
Equipment
Supplied
Yes/No
Inlet Pressure
Residual Peak to Peak Pulsation %
As per API 618, Cl 3.9.2.7
Inlet Nozzle
Size
/
Rating/Posit
ion
Discharge
Nozzle Size
/
Rating/Posit
ion
Design
Pressure
Kg/cm²a
Design
Temperatur
e 0C
Volume
Material
: SA 516 Gr.60
SA
516 SA
516 SA
516 SA
516
vessels
Gr.60
Gr.60
Gr.60
Gr.60
Internals
Corrosion
3
3
3
3
3
Allowance
mm
Hydrostatic
1.3XMAWP
1.3XMAWP
1.3XMAWP
1.3XMAWP
1.3XMAWP
test
Pressure
kg/cm²,g
Design Code:. ASME SECT. VIII DIV. 1
Analog Piping Study / Acoustic Simulation, As per Approach 3, Cl. 3.9.2.6 API618, 4th edition
Upstream / downstream
Inter-stage
Performed By: □Vendor
□ Any other agency having similar experience
Piping Mechanical Analysis
Performed By: □Vendor
□ Any other agency having similar experience
□ Automatic Drain Valves For Each Stage suction KOD
□ Capacity Control
□ Start / Stop, based on discharge receiver pressure: Fully Automatic
Unloading for Start up/Shut down :Automatic Through □ Valve Unloader □ Recycle Valve
□ Interlock against loaded start
□ Automatic Control based on
□ Suction Pressure□ Discharge Pressure □ Flow Manual Signal
□ Type of Actuator □ Actuation fluid to load □ Actuation fluid to unload
□ On Power / Actuation fluid failure : Compressor to □ Load □ Unload
□ Continuously □ Maximum Hrs.
□ Continuously □ Maximum Hrs.
□ At All other capacity, Compressor should run continuously
Vendor's scope Should Include :
□ Pilot Devices (pressure / temperature / Flow devices ,Controllers & Switches)
□ Intermediate Devices (Solenoid Valves | Pneumatic Relay / Valves)
□ Actuators
□ Recycle valves
□ Control Logic and System for Complete Capacity Control
□ Inter Connecting Tubing, Piping, Cabling & Wiring
□ Protection against extended unloaded operation (Trip)
□ Valve unloaders are required as such Compressor should start / stop at specified receiver pressures.
□ Purchaser's Interface
Type of Interface (Single Size
Rating
Face
Position/Location
Point)
Main Gas Piping Inlet
Main Gas Piping Outlet
Relief Valves discharge
Distance Piece Vent
Packing Vent
C.W. Inlet
C.W. Outlet
N2 Inlet Supply
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 39
REV
0
242
243
244
245
246
N2 Vent (Safe location)
Drains
■ MATERIALS
Cylinder Materials
Stage
247
248
249
250
251
252
253
254
255
256
257
258
259
260
Cylinder
□ Liner
□ Piston
Piston Rings
Rider Rings
Piston Rod
□ Packings Rings
□ Valve Seats
□ Valve Stops
Valve Rings / Plates
Valve Springs
□ Cylinder Head
Motion Work Materials :
261
262
263
264
265
266
267
268
269
270
271
272
273
Top Cover
Crankcase
Crankshaft
Connecting Rods
Cross heads
Cross Head Shoes
Cross Head Guide
Main Bearings Type
Cross Head Pin Bearings Type
Connecting Rod Bearings Type
Cross Head Pin Type
Notes :
Bidder to indicate the material
Each package should be provided with two number drain lines, one from Suction KOD and second drain
as common drain line from intermediate and discharge KOD routed to drain vessels through gas recovery
vessels
□ CONTROLS & INSTRUMENTATION
□ AC Power On/Off Switch With Indication Lamp
□ Control Power On/Off Switch With Indication Lamp YES
□ Selector Switch A/M Station For L/O Pump Motor
□ Selector Switch A/M Station For CW Pump Motor
□ Emergency Stop Push Button
□ Start Push Button For Air Compressor Motor
□ Emergency Stop Push Button for Main Motor
□ Lamp Test Push Button
□ Alarm / Trip Acknowledge / Reset Push Button
□ Frame Oil Heater ON (Indicating lamp)
□ Lubricator Oil Heater ON (Indicating lamp)
□ Motor Interlock Against Loaded Start
□ Motor Interlock Against Start Without Prelubrication
Notes :
Minimum required indications, alarms & trips are shown herewith.
Bidder should provide any
additional instrumentation for safe operation.
Compressor should start stop at pre determined receiver pressure as specified.
Bidder should include
in his
Scope includes the necessary hardware for the same.
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
1 Stage
2
Stage
3
Stage
4
Stage
5
Stage
PTFE
PTFE
PTFE
PTFE
PTFE
PTFE
PTFE
PTFE
PTFE
PTFE
Material /
ASTM Grades
INSPECTION AND TESTS
Material Composition and Physical Properties Certificates Required For:
■ Cylinder and Liner
■ Piston
■ Crankshaft
■ Connecting Rod
■ Pressure Vessels
■ Heat Exchangers
■ X-Ray Examination for components: Pressure Vessels (certificates to be furnished).
Required
Observed
Witnessed
■ Mech. Running Test with shop Driver ■
□
■
(4 Hours min.)
■ Performance Test at site as per
■
□
■
IS 5456/PTC9/BS 726 (*).
■ Partial Stripping and internal □
□
□
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 40
REV
0
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303
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305
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307
308
309
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319
320
321
322
323
323
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
inspection
■ Functional/Continuity Tests - Control ■
□
□
Panel.
■ Field Trial Run 20 Hrs. under Vendor's ■
□
■
Supervision (Package)
■ Valve Leak Test
□
□
□
■ Lube Oil Console Run test
□
□
□
■ Closed Circuit C.W. System test
□
□
□
□ During package performance test
□Test Certificates Required For:
■ Auxiliary Motor & Pumps
■ Safety Relief Valves
■ Safety Switches
■ Solenoid Valves
□ WEIGHTS
Overall supply (excluding driver and gear box, if any) Kg. approx.
Maximum erection weight Kg. approx.
Maximum maintenance weight Kg. approx.
Gear Box Kg. approx.
Driver Kg. approx.
SCOPE OF SUPPLY
■ Compressor Assembly complete with frame, cylinders, cross head etc.
■ Motion work lubrication system
■ Cylinder and packing lubrication system
■ Cooling system
■ Process Gas system
■ Local instrumentation
■ Local Gauge Board
■ Local Control Panel
■ PLC Panel
■ Man Machine Interface located in Control
Room
■ Main driver electric Motor
■ Barring Device:
□ Manual
□ Electric. Pneumatic
■ Flywheel
□ V-Belts with Pulley
□ Couplings
■ Driver Compressor
■ Guards for moving parts ■
■ Base plate Common for Compressor and Driver
■ Fabricated Steel skid Common for compressor, driver and accessories
■ Ladders and platforms
■ Special Tools - One Set for each package
■ Anchor Bolts for Complete Package
■ Piping supports and brackets : ■ prefabricated for piping in Vendor's Scope
■ Supports For Cylinders & Auxiliaries, Prefabricated & fitted in the Package
■ Commissioning Spares, erection and commissioning spares
■ Spares as specified in the Job Specification
■ Vendor Data as specified
NOTE : Refer checklist for scope of supply
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 41
REV
0
ANNEXURE – MS
MANDATORY SPARES PARTS FOR GAS COMPRESSOR PACKAGE
1
The quantity of spares as mentioned is the quantity required for a lot of 01 no compressor packages. If
any set is not applicable for any compressor package , the same will be price loaded . The price of set
will be taken as maximum from techno-commercially acceptable
Bidder .
Price of mandatory spares shall be loaded for evaluation purpose.
2
3
1 Set means the quantity installed in one compressor package. Details items in the set will as per OEM’s
spare parts & maintenance manual. Successful
Bidder will furnish details of set with part nos.
S.No Part Description
1
Part
No.
Qty. Reqd.
by purchaser
in set for
each comp
20
Set of piston rings & wearing ring
for all cylinder
Suction valve assembly for all
cylinder
Descharge valve assembly for all
cylinder
Suction valve internals (for all
stages)
Discharge valve internals (for all
stages)
Packing Ring for Cylinders
Mechanical seal for lube oil pump
and cooling water pump.
O-Rings and Gaskets for
Compressor
Feed Assembly for Lubricator
Filter Oil
Cartridge for Suction Gas filter
Cartridge for Discharge Gas filter
Gasket & O-Ring for compressor
package
V-belts for motors
Seal kit sets for Actuators
Seal for Compressor Crankshaft
Bearing Set for Air Cooler, Water
Pump & Main Motor, AOP, AOP
Motor
Power Contctor for main motor
starter
Relay for main motor, cooler fan,
water pump over load.
10% relay installed
21
10% Zener barrier installed
1
22
Pressure transmitters ( 0 –400 )
4
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
CONSULTANT
MECON Limited
Price
Unit
Total
2
1
1
4
4
2
2
2
2
4
2
2
2
1
2
2
2
2
2
1
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 42
REV
0
23
Pressure transmitters ( 0 –200 )
2
24
Temp element
2
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 43
REV
0
DATA SHEET OF COMPRESSOR MOTOR
1
2
3
4
5
6
Project name:
Driven equipment
Tag No. / Equipment No.
Duty
Manufacturer
Type
7
8
9
10
11
12
Frame designation
Output _______________________ KW
Voltage _____________________VOLT
Full load current_______________AMP
Full load speed _______________ RPM
Enclosure
13
14
15
16
17
18
19
20
Mounting
Insulation Class
Ambient temperature ____________°C
Temp. Rise by resistance __________ °C
Applicable Code
Full load torque ______________ Kg-m
Starting torque ________________FLT
Efficiency at _____________100% Load
________________________75% Load
________________________50% Load
Rotation viewed from DE
Bearing type No.
Type of Lubrication
Coupling / pulley
Net weight (approximate) __________kg
Cable size / type ______ mm sq.
Phase / connection / No. of terminal
Frequency _______________ Hz.
No. of poles ______________
Locked rotor current___________%FLC
LR withstand time (HOT) _________Sec
(COLD)
Sec
Startor / rotor time constant _______Min
Power factor at – 100% Load
- 75% Load
- 50% Load
Break down or pull out torque ___ %FLT
Space heaters _________WATT / VOLT
GD Sq. of load __________Kg-m2
GD Sq. of motor __________Kg-m2
Starting time at 100% / 80% V-Sec
No. of starts – Hot / Cold
Vibration Level / Noise Level
Area classification
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
CONSULTANT
MECON Limited
PURCHASER
Compressor
THREE
PHASE,
SQUIRREL
INDUCTION MOTOR, EFF2 rated
CAGE
415 V+/ - 10%
TEFC/FLAMEPROOF/IP55 AS PER
IS:4691-1985
F' - Temp. rise limited to Class - 'B'
DIRECT / FLEXIBLE
50 Hz + / - 5%
4
As per IS12065 / IS12075
CLASS - I, ZONE (DIV)-1, GAS GROUP IIA
/ II B
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 44
REV
0
DATA SHEET GAS DETECTION SYSTEM
1
2
3
4
5
TECHNICAL
GENERAL
PROJECT:
OWNER: M/S PURCHASER
SITE: Bangladesh
EQUIPMENT: GAS DETECTION FOR CNG STATIONS
NO.
GAS DETECTION TYPE:
6
NOTE: ■ SCOPE OPTION / INFORMATION SPECIFIED BY PURCHASER □ INFORMATION REQUIRED FROM
VENDOR.
□ MANUFACTURER:
□ MODEL NO.:
SIGNAL TRANSMISSION
□ ANALOG: TRANSMISSION BY 3CORE SHEILDED CABLE
□ MEASUREMENT CONTROL: 4mA to 20Ma
□ SENSOR DRIFTS BELOW ZERO:
□ MEASURING RANGE EXCEEDED:
□ TRANSMITTER FAULT:
□ MAINTENACE SIGNAL:
□ HART COMPATIBLE:
■ SITE / ENVIRONMENTAL DATA
SITE DATA:
AMBIENT TEMP. (0C):
MAX:
MIN:
RELATIVE HUMIDITY (%):
MAX:
ALTITUDE (M):
INSTALLATION: ■INDOOR
■ ELECTRICAL AREA HAZARD:
CLASS/ZONE: CLASS I ZONE I
DIVISION: I
GAS GROUP: D, GROUP IIA, IIB
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
■ APPLICABLE CODES AND STANDARDS
26
27
28
■ GAS DETECTION APPROVALS: CENELEC :Exd IIC 6
VOLTAGE OF SUPPLY
□ OPERATING VOLTAGE: A.C/D.C
□ IN-RUSH CURRENT:
A.C/D.C
□ POWER INPUT
A.C/D.C
■ PHYSICAL SPECIFICATIONS
□ ENCLOSURE: Nema 4+7 (IP65)
□ SIZE
□ WEIGHT
29
□ Physical Tests on site:
22
23
24
25
■ UL, CSA: Class 1, Div 1, Groups B,C,D
V
Ph
■ INSPECTION AND TESTS
REMARKS
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 45
REV
0
DATA SHEET- UV FIRE DETECTION SYSTEM
TECHNICALGENERAL
1
PROJECT:
2
3
4
5
OWNER: M/S PURCHASER
SITE: Bangladesh
EQUIPMENT: UV FIRE DETECTION FOR CNG STATIONS
NO.
FIRE DETECTION TYPE:
NOTE: ■ SCOPE OPTION / INFORMATION SPECIFIED BY PURCHASER □ INFORMATION REQUIRED FROM
VENDOR.
□ MANUFACTURER:
□ MODEL NO.:
■ TYPICAL RESPONSE TIME: < 3 SEC @ 50FT
□ WAVE LENGTHS:
□ FIELD OF VIEW:
□ MINIMUM SENSOR RESPONSE TIME:
□ SENSITIVITY
□ MAINTENACE SIGNAL:
6
7
8
9
10
11
12
13
14
15
■ CLASSIFICATION: CLASS I, DIV 1, GROUPS
B, C & D: Eexd IIC, T5, IP66
■ CLASS II, GROUP E,F & GCLASS III, TYPE 4X
■ APPROVALS: CSA, FM, ATEX, CENELEC, CE MARKING
■ ENVIRONMENTAL SPECIFICATIONS
■ OPERATING TEMPERATURE RANGE: -40 (0C) to 85 (0C)
0
0
■ STORAGE TEMPERATURE RANGE: -50 ( C) to 85 ( C)
■ OPERATING HUMIDITY RANGE: 0% TO 100% RH NON-CON-DENSING
■ ALTITUDE (M):
16
■ EARTH QUAKE ZONE V
17
■ INSTALLATION: ■ INDOOR
18
■ ELECTRICAL SPECIFICATION:
■ INPUT POWER: 20 – 36 VDC, 24 VDC @ 150Ma max.
19
■ANALOG SIGNAL: 4-20mA (600 Ohms Max.)
20
21
□ FAULT SIGNAL: 0Ma
22
□ IR SIGNAL:
23
□ ALARM SIGNAL:
■ RELAY CONTACT RATING: 8A, 250VAC, 8A @ 24VDC
24
■ RFI/EMI PROTECTION: COMPLIES WITH EN50081-2
25
26
□ FAULT MONITORING:
■ MECHANICAL SPECIFICATION:
■ HOUSING:
28
29
■ DIAMETER:
30
■ CABLE ENTRY:
SCOPE OF SUPPLY
31
■ UV FIRE DETCTION SENSORS COMPLETE:
32
■ DATA SHEET COMPLETED
REMARKS:
33
CONSULTANT
MECON Limited
□ COPM FAULT
□ READY SIGNAL
□ UV SIGNAL:
□ WARN SIGNAL:
□ BAUD RATE:
□ RS-485 OUTPUT:
□ STATUS INDICATOR:
■ LENGTH:
■ MOUNTING:
■ WEIGHT:
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 46
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0
OPERATING CONDITIONS: SUCTION PRESSURE: ✐✎✘✔ kg/cm2
1
2
3
OPERATING CONDITIONS (EACH MACHINE) / PERFORMANCE
Operating Case: SUCTION PRESSURE: kg/cm²
Stage 1
Units
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
■ Gas Handled (See Analysis)
□ Corrosion Due to
Suction Conditions
■ Pressure (@ Vendor's B/L)
kg/cm²
0
■Temp.
(+@ Vendor's B/L)
C
Discharge Conditions (Vendor's Battery Limit :
■ Pressure (@ Vendor's B/L
Pressure @ Cylinder Flg.
Temp., Adiabatic @Cyl. Flange
< 52
Temp.,Actual @Cyl.Flange
0
Temp.,After After Cooler
C
Cp/Cv Ratio
Compr. Factor (Z2 ) or (Z avg )
Operating Characteristics
Capacity (wet)
SM3 /Hr
Mfr's Rated Cap. (Design)
(No –ve tol.)
3
Actual Inlet Flow (wet)
AM /Hr
Specific Gravity
V Belt / Coupling Losses
KW
Volumetric Efficiency
%
Valve Lift Suction /
mm / mm
Valve Lift Area Suction/ Discharge
mm2 / mm2
Valve Velocity
m/sec
Speed
RPM
Compressor Shaft Power KW
Power consumed @ RV Set Pr.
KW
Driver Power KW
Average Molecular Weight (wet/dry)
Net Calorific Value
CONSULTANT
MECON Limited
Stag
e2
Stag
e3
Stag
e4
Stag
e5
<150
< 52
<150
< 52
<150
< 52
<150
< 52
✓✐
<150
< 52
KCal/SCM
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 47
REV
0
OPERATING CONDITIONS: SUCTION PRESSURE: ✑✎✐✕ kg/cm2 GUARANTEED CASE
1
2
3
OPERATING CONDITIONS (EACH MACHINE) / PERFORMANCE
Operating Case: SUCTION PRESSURE: kg/cm²
Stage 1
Units
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
■ Gas Handled (See Analysis)
□ Corrosion Due to
Suction Conditions
■ Pressure (@ Vendor's B/L)
kg/cm²
0
■Temp.
(+@ Vendor's B/L)
C
Discharge Conditions (Vendor's Battery Limit :
■ Pressure (@ Vendor's B/L
Pressure @ Cylinder Flg.
Temp., Adiabatic @Cyl. Flange
Temp.,Actual @Cyl.Flange
< 52
Temp.,After After Cooler
Cp/Cv Ratio
Compr. Factor (Z2 ) or (Z avg )
Operating Characteristics
Capacity (wet)
SM3 /Hr
Mfr's Rated Cap. (Design)
(No –ve tol.)
Actual Inlet Flow (wet)
AM3 /Hr
Specific Gravity
V Belt / Coupling Losses
KW
Volumetric Efficiency
%
Valve Lift Suction /
mm / mm
Valve Lift Area Suction/ Discharge
mm2 / mm2
Valve Velocity
m/sec
Speed
RPM
Compressor Shaft Power KW
Power consumed @ RV Set Pr.
KW
Driver Power KW
Average Molecular Weight (wet/dry)
Net Calorific Value
CONSULTANT
MECON Limited
Stag
e2
Stag
e3
Stag
e4
Stag
e5
<150
<150
<150
<150
<150
< 52
< 52
< 52
< 52
< 52
✓✐
KCal/SCM
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 48
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0
EXPERIENCE RECORD PROGRAMME OF ELECTRIC MOTOR DRIVEN COMPRESSOR
B)
Sl.No.
Description
INFORMATION OF
OFFERED
COMPRESSOR
INFORMATION OF
EXISTING
COMPRESSOR
REQUIREMENT AS PER TENDER
1
2
3
a) Status of
Bidder (Indicate
packager or agent of packager)
b) In case Bidder is the agent submit
the agreement of agent ship/dealership
with packager.
COMPRESSOR
Name of compressor manufacturer
Place of compressor manufacturer
Compressor model
Anticipated Life in running hours
Compressor maximum frame BKW
Compressor operating RPM
Compressor max design RPM
Comp Manufacturing code preferably
API –11P 2nd edition, API-618
Lubricated or non lubricated
Nos of stages
Max stage temperature deg cen ( 150
ded cen)
Compressor Operating RPM ( max
RPM-1500 )
Piston speed ( 4.5 m/s lub, 4m/s non
lub)
Vibrations at comp cylinders < 10 mm
/sec. Unfiltered peak velocity. Vibration
comp frame: Unfiltered peak velocity of
7.5 mm/s or 250 micron unfiltered peak
to peak vibration whichever is less.
Material for all stages
Cylinder
Piston Rings
Rider Rings
Piston Rod
Valve (Rings / Plates/ spring)
PERFORMANCE OF COMPRESSOR
CASE- Performance of compressor at 0.84
L
kg/cm2 suction pr, 255 kg/cm2
discharge pr and 30 deg c suction
temperature
CASE- GUARANTEED POINT:
G
Performance of compressor at
✑✎✐✕ kg/cm2 suction pr, 255 kg/cm2
discharge pr and 30 deg c suction temp
a) Capacity Sm3/h
CONSULTANT
MECON Limited
CASE-L
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 49
REV
0
CASE-G
b) BKW required by
CASE-L
compressor including
compressor's lube oil pump
CASE-G
BKW
c) BKW required by
CASE-L
compressor including
compressor's lube oil pump
CASE-G
BKW at RV set pr
d) KW rating of main compressor motor
,4 starts per hr , with 10% over rating
w.r.t max of “b+ transmission losses ”
above.
e1) Gas cooler ( heat
exchanger ) fans; nos
required ( W+S)
e2 )Power required for all
fans in Kw
CASE-L
CASE-G
II) Ventilation fans for enclosure
No of fans
Type of fans ( induced or forced draft )
Power required for all fans in Kw
4
A
b)
c)
Piston rod and cross head pin loading at
any specified operating condition
including the relief valve set condition
shall not exceed 80% of the maximum
design rod load of the offered
compressor.
----Piston rod : max Design
----Piston rod : calculated at safety set pr
condition
----Max cross head pin loading: Design
----Cross head pin loading :calculated at
safety set pr condition
Electric motor
Main compressor drive motor
Make and model
Name plate rating in Kw
RPM of motor
Site rating after deration kw
Ventilation fan motor
Make and model
Nos provided ( W+s)
Name plate rating in Kw
RPM of motor
Site rating after deration kw
Cooler fan motors
Make and model
Nos provided ( W+s)
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 50
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0
d)
e)
Name plate rating in Kw
RPM of motor
Site rating after deration kw
Coolant pump motor
Make and model
Nos provided ( W+s)
Name plate rating in Kw
RPM of motor
Site rating after deration kw
Any other motor
Make and model
Nos provided ( W+s)
Name plate rating in Kw
RPM of motor
5
6
7
8
Site rating after deration kw
PACKAGE
Name and Address of packager
Place of packaging (address)
Name of enclosure manufacturer
Place of enclosure manufacturing
Sound level at 1 m distance from
package in db(A) 65
Make & model LEL detector - 2nos
Make & model fire detector -2nos
Co2 flooding system ( 2 cylinder each of
100% capacity required)
Quantity of CO2 in each cylinder in Kg
Volume of enclosure in m3
Nos of explosion proof tube light in
enclosure
Coupling Direct/V-belt
Separators between inter stage of
compressor.
Gas inlet train
6” WNRF, 150 # Flanged connection;
outside canopy
Inlet relief valve
Inlet gas pressure gauge
Non return valve
Inlet filter of 5 micron size
Temporary suction filter after main filter
Inlet manual isolation valve
Inlet automatic isolation valve
Gas recovery system
Gas recovery system with pr relief
valve, pr regulator, pr gauge, manual &
automatic drainage system
Gas delivery system
High pr piping with SS 316 tubing,
compression fittings , NRV.
Coalescent final separator
Coalescent filter
Discharge isolation valve
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 51
REV
0
9
10
11
PLC based Priority panel with SS 316
compression fillings , tubings , full bore
valve ball. Indicate nos of banks
Mass flow meter: Coriolis principle;
interfaced with PLC; head mounted
display to indicate flow rate (Kg/hr) at
compressor discharge, cumulative gas
compressed (in Kgs) etc.; inbuilt totaliser
non-volatile & non-resetable type ;
suitable for hazardous area classification
; by pass arrangement
Volume gas flow meter: with electronic
volume correction ,interfaced with PLC;
head mounted display to indicate flow
rate ( Sm3/h and kg/h ) at compressor
suction, cumulative gas compressed
etc.; inbuilt totaliser non-volatile & nonresetable type ; suitable for hazardous
area classification ; by pass
arrangement
Final gas outlet connection from priority
panel 3/4” OD SS compression fittings.
ESD system
Volume bottles/ dampers at each
compressor stage of compressor.
Drainage system:
Manual double isolation valve
Automatic valves
Heat exchanger
Code of construction preferably API 661
Tube material
12
13
14
15
16
17
18
19
20
21
Piping between stages shall be
continuos with flange and welded
connection
Other tubing shall be SS as defined in
TS
Gas recovery vessel provided
Area classification ; “Class 1, Group D,
Division 1 as per NEC” OR “Zone 1,
Group IIA /IIB as per IS/ IEC”
Instruments .
Electric Motor
The size of the complete package
Chain pulley block and beam for chain
pulley block
Acoustic and pulsation study
Acoustic enclosure for electric motor
and compressor.
Confirm that instrumentation will be
supplied as per tender.
Man-machine interfacing unit (MMI), PC
color printer in control room
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 52
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0
22
String test at shop
23
Field trial run for 20 hours
24
Electric power consumed by compressor
package including power absorbed by
lube oil pump motor , inter cooler fan
motors , cooling water pump motors
along with transmission losses but
excluding power absorbed by air
compressor motor, exhaust fan motor,
control panel & enclosure lighting at
guaranteed flow and at specified
conditions
Confirm no deviation w.r.t. tender.
Max turn over of the
Bidder /
manufacturer or packager during any of
the last three financial years.
Other information of compressor
package :
a) Year and month of packaging the
compressor package
b) Name and address of user with FAX
no ,Phone no , E-mail address
c) Nos of hours the compressor have
clocked on bid due date. ( Enclose
certificate from user)
d) Documentary evidence that the
Bidder / manufacturer or packager
having the capability and facilities (i.e.
shop, manpower, testing facility etc.) for
manufacturing / packaging five packages
in a year.
e) Whether the
Bidder having office
set up in Bangladesh equipped with
trained and experienced technical
manpower for the operation and
maintenance services.
25
26
27
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 53
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0
DATA SHEET- INSTRUMENTATION & CONTROLS FOR COMPRESSOR
5
Supply Header Temp.
6
Oil cooler Oil Inlet Temp.
7
Stand by Pump Start
8
9
Compressor Main bearing metal
Temp.
Cylinder & Packing Oil
10
Lubricator Oil Level
11
Lubricator Oil Flow
12
Lubricator Failure
13
Aux. Oil
14
Lub. Oil Supply Pr. to Electric
Motor Driver
Lub. Oil return from Electric
Motor Driver
GUAGE
BOARD
15
Elec. Motor bearing metal temp.
17
Coolant System
18
Each cylinder CW outlet temp.
19
Inter/After/Oil Cooler CW outlet
temp.
CW Supply header flow
21
22
Sight Flow CW return
cylinder, Cooler & Header
For Closed Circuit Cooling
23
Coolant main pump disch. Pr.
24
Coolant standby pump disch. Pr.
25
26
Coolant stand by pump start
Coolant supply header Pr.
27
Coolant supply header temp
28
Coolant cooler Outlet Temp.
■ yes
29
Coolant reservoir Level
■ yes
30
Cylinder Coolant Outlet temp.
31
For Static/Thermo-siphon System
CONSULTANT
MECON Limited
PANEL
FOR
■ yes,
wsitch
■ yes
■ yes,
wsitch
■ yes
■ yes
■ yes
■ yes
16
20
■ yes
ALARM
CONTACT
Oil Pressure at Main Bearing
■ yes
A/V
REPEAT
PLC/MMI
4
■ yes
TRIP
&
ANNUN.
HIGH HIGH LOCAL PANEL PLCDISPLAY
■ yes
3
Main L/O Pump Disch. Pr (supply
header).
Oil Flow
PRE
LOW LOW –LOCAL PANEL PLC-DISPLAY
2
&
INDICATION AT/ MMI
■ yes
HIGL LOCAL PANEL DISPLAY
(PLC)
Frame Oil Sump/Reservoir Level
INDICATION AT MMI
1
INDICATOR LOCAL
(PLC) DISPLAY
GUAGE
DESCRIPTION
–LOCAL
S.
NO
LOW LOCAL PANEL DISPLAY
ANNUNCIATION
ALARM
INDICATION
each
■ yes
■ yes
■ yes
■ yes
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
■ yes
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 54
REV
0
ALARM
FOR
A/V
CONTACT
TRIP
&
ANNUN.
HIGH HIGH LOCAL PANEL PLCDISPLAY
PRE
LOW LOW –LOCAL PANEL PLC-DISPLAY
&
INDICATION AT/ MMI
HIGL LOCAL PANEL DISPLAY
(PLC)
INDICATION AT MMI
PANEL
INDICATOR LOCAL
(PLC) DISPLAY
GUAGE
LOW LOCAL PANEL DISPLAY
ANNUNCIATION
ALARM
INDICATION
32
Cylinder Coolant Outlet temp.
33
34
Diff. Pr. Across packing coolant
filter
Process Gas System
35
Each stage inlet Pressure
36
Each stage inlet temp.
37
Each stage Outlet Pressure
■ yes
■ yes
■ yes
38
Each stage Outlet temp.
■ yes
■ yes
■ yes
■ yes
■ yes
39
After Cooler Gas Outlet temp.
■ yes
■ yes
■ yes
■ yes
■ yes
40
Ist stage pressure low / high
■ yes
■ yes
■ yes
■ yes
■ yes
41
Cylinder Packing Vent Pressure
42
Suction Pressure, low
■ yes
■ yes
■ yes
■ yes
■ yes
43
Blow Down vessel level
■ yes
44
Piston Rod Drop Indicator
45
46
Distance piece diff. Purge
pressure
Common process parameters
47
Common machine parameters
48
Blow Down vessel Pressure
■ yes
■ yes
■ yes
■ yes
49
Vibration Measurement
■ yes
switch
■ yes
GUAGE
BOARD
■ yes
■ yes
■ yes
■ yes
■ yes
REPEAT
PLC/MMI
DESCRIPTION
–LOCAL
S.
NO
such as Amperes, voltage, flow rate, total quantity of gas compressed, inlet – outlet
pressure, inlet –outlet temperature, Kilo Watt Hour (KWH), electric power.
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 55
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0
DEVIATIONS TO THE SPECIFICATION
S
No.
Clause
no.
Tender
Deviation taken
Specification
Reasons for deviations / remarks
Certified that, only the above-mentioned deviations have been taken against this tender.
Name of the
Bidder
Signature
Seal of the Company.
CONSULTANT
MECON Limited
TS CNG COMPRESSOR FOR HPCL
BANGLADESH
SPECIFICATION NO.
MEC/TS/05/25/HPCL/S031
Page 56
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