IGS-PM-105(0) : 1990
Previously : (SF-100)
105
National Iranian Gas Co.
Research and Technology Management
Standardization Division
IGS
Iranian Gas Standards
Specification for :
:
Dry Gas Filter
(
)
!" # $
APPROVED
Fax:(9821)-8487-8384
http://igs.nigc.ir
nigcigs@nigc.org
NIGC , STANDARDIZATION DIV.
FOREWORD
This standard is intended to be mainly used by NIGC and contractors and has been prepared on
interpretation of recognized standards , technical documents , knowledge ,backgrounds and
experiences in gas industries at national and international levels.
Iranian Gas Standards (IGS)
are prepared , reviewed and ammended by technical standard
committees within NIGC Standardization Div. and submitted to the NIGC's “STANDARDS
COUNCIL“ for approval .
IGS Standards are subject to revision , amendment or withdrawal , if required , thus the latest edition of
IGS shall be checked/inquired by NIGC users .
This standard must not be modified or altered by the end users within NIGC and her contractors. Any
deviation from normative references and/or well known manufacturers specifications must be reported
to Standardization div.
Any comments from concerned parties on NIGC distributed IGS are welcome to technical
standards committees and will receive serious attention and consideration should a revision to
standards is recommended .
GENERAL DEFINITIONS :
Throughout this standard the following definitions , where applicable , should be followed :
1- “STANDARDIZATION DIV.“ has been organized to deal with all aspects of industrial
standards in NIGC . Therefore , all queries for clarification or amendments are requested to
be directed to the mentioned div.
2- “COMPANY “ : refers to national iranian gas company .
3- “SUPLIER“ : refers to a firm who will supply the service , equipment or material to igs
specification whether as the prime producer or manufacturer or a trading firm .
4-"SHALL" : is used where a provision is mandatory.
5-"SHOULD" : is used where a provision is advised only.
6-"MAY" : is used where a provision is completely discretionary.
------------------------------------------------Website : http://igs.nigc.ir
E-mail : nigcigs@nigc.org
.
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__________________________________________________________
(nigcigs@nigc.ir) : " : e [ D (http://igs.nigc.ir) " 0
Q S e [*
IGS-M-PM-105(0)-1999
1.0
SCOPE
1.1
THIS SPECIFICATION , TOGETHER WITH THE RELEVANT DATA
SHEETS
AND
REQUIREMENTS
DRAWINGS
FOR
,
COVERS
THE
DESIGN,
THE
GENERAL
MATERIALS
,
MANUFACTURE, TESTING , INSPECTION AND PACKING FOR
SHIPMENT OF A DRY GAS FILTER AND THE REQUIRED
INSTRUMENTATION.
THE
VENDOR
SHALL
FURNISH
COMPLETE OPERATING UNITS INCLUDING ALL NECESSARY
ITEMS SUCH AS VALVES, ETC TO ENSURE SATISFACTORY
OPERATION.
1.2
THIS
SPECIFICATION
PURCHASE
IS
ORDER,
PART
IT
OF
SHALL
THE
BE
ENGUIRY
THE
AND
SUPPLIER
RESPONSIBILITY TO CLEARLY INDICATE AND DEVIATION
FROM THE SPECIFICATIONS OTHERWISE IT IS UNDERSTOOD
THAT THE EQUIPMENT CONFORMS TO THE REQUIREMENTS
OF THIS SPECIFICATION.
1.3
THE SPECIFICATION DOES NOT SUPERSEDE THE ACCEPTED
PRESSURE VESSEL CODES BUT ONLY SUPPLEMENTS THEM
WITH
REGARD
TO
CERTAIN
COMDITIONS
NOT
FULLY
COVERED IN THE CODES.
1.4
THE EQUIPMENT SHALL BE DESIGNED FOR FULL LOAD
,UNATTENDED
CONTINUOUS
OPERATION
WITHOUT
THE
PROVISION OF SPECIAL HOUSING OR SHELTERS ETC.
1.5
THE UNIT SHALL BE COMPLETELY ASSEMBLED , TESTED AND
PAINTED ACCORDING TO THE STANDARDS , CODES AND
SPECIFICATION QUOTED HERE IN AND SHALL REQUIRE ONLY
PIPE CONNECTIONS BEFORE BEING PLACED INTO SERVICE.
2.0
REFERENCE CODES AND STANDARDS
2.1
THE LATEST REVISIONS OF ALL CODES AND STANDARDS
THEIR SUBSEQUENT ADDENDAS ARE INTENDED.
1
IGS-M-PM-105(0)-1999
2.2
ASME BOILER AND PRESSURE VESSEL CODE:
SECTION VIII DIVISIONS 1- “UNFIRED PRESSURE VESSELS:
SECTION IX “ WELDING AND BRAZING QUALIFICATIONS”
2.3
ANSI B.16.5 “ STEEL PIPE FLANGED FITTINGS:
2.4
ANSI B.16.11 “ FORGED STEEL FITTINGS
SOCKETWELDING
AND THREADED”.
2.5
ANSI B.16.20 RING JOINT GASKET AND GROOVES FOR STEEL
FLANGES ANSI B.16.21 NON-METALIC FLAT GASKETS FOR PIPE
FLANGES.
2.6
ANSI B.18.2.1 AND B.18.2.2 “ BOLTING”.
2.7
ANSI B.31.8 “ GAS TRANSMISSION AND DISTRIBUTION PIPING
SYSTEM”.
2.8
ANSI B.31.3 “ PRESSURE PIPING” .
3.0
MATERIALS
AND
COMPONENTS-GENERAL
REQUIREMENTS
3.1
THE DRY GAS FILTER SHALL BE VERTICAL TYPE OF CAST OR
FABRICATED CONSTRUCTION AND SELF SUPPORTING BY
MEANS OF FEET , SKIRT OR LEGS WHICHEVER, IS THE MOST
SUITABLE FOR THIS PURPOSE .
3.2
LIQUID DRAIN VALVE(S) AS PER CLAUSE 4.10 OF THIS
SPECIFICATION ARE REQUIRED.
3.3
DIAL TYPE DIFFERENTIAL PRESSURE GAUGE, AS PER CLAUSE
4.11 OF THIS SPECIFICATION ARE REQUIRED.
3.4
QUICK TYPE CLOSSURE ARE PREFERABLE BUT BOLTED TYPES
ARE ALSO ACCEPTABLE FOR FOLLOWING BODY SIZES AND
PRESSURE RATINGS.
PRESSURE RATING
BODY SIZE
ASA 150
10 INCHES (UPTO NOT INCLUDING)
ASA 300
6
“
“
ASA 600
4
“
“
2
IGS-M-PM-105(0)-1999
THE CLOSURE SHALL HAVE APPROPRIATE HANDLES FOR
LIFTING IT BY HAND.
3.5
QUICK
OPENING
END
CLOSURE
AS
PER
4.7
OF
THIS
SPECIFICATION ARE REQUIRED FOR SIZES NOT MENTIONED
IN 3.4
4.0
DESIGN
4.1
FILTER SHALL BE DESIGNED, MANUFACTURED, INSPECTED
AND TESTED IN ACCORDANCE WITH THE LATEST DEITION OF
THE ASME BOILER AND PRESSURE VESSEL CODE, SECTION
VIII, DIVISION 1 AND ITS SUBSEQUENT
ADD AND ASME ‘U’
STAMPED VESSELS ARE REQUIRED.
THE VESSELS WILL BE OPERATING IN OUTDOOR CONDITION ,
UNDER SUN AND RAIN.
4.2
FILTER SHALL BE DESIGNED TO WITHSTANDE THE LOADS
EXERTED BY INTERNAL PRESSURE , WEIGHT OF THE VESSEL ,
WIND , EARTHQUAKE , IMPACT AND TEMPERARURE.
4.3
FILTER SHALL BE DESIGNED TO REMOVE ENTRAINED SOLID
PARTICLES DOWN TO 5 MICRONS FROM THE DRY GAS TREAM
USING A DISPOSABLE
CLEANABLE CARTRIDGE ELEMENT
SUPPORTED BOTH INTERNALLY AND EXTERNALLY BY A MILD
STEEL CADMIUM PLATED DOUBLE WALLED BASKE .
4.4
CARTRIDGE ELEMENT SHALL PREFERABLY BE OF THE
OPENENDED TYPE MANUFACTURED FROM EITHER A WOVEN
POLYPROPELENE FIBER OR PHENO… RESIN BONDED GLASS
FIBER OR SUITABLE EQUIVALENTS.
4.5
FILTER ELEMENT SHALL BE FIRMLY CLAMPED ONTO THE
BASKET SEAT TO PREVENT ANY POSSIBLE BY PASS OF
PARTICLES OVER 5 MICRONS IN SIZE.
4.6
THE FILTER SHALL BE DESIGNED TO GIVE A MINIMUM
FLANGE TO FLANGE CLEAN PRESSURE DROP, (NORMALLY
3
IGS-M-PM-105(0)-1999
LESS THAN 2 PSI) AND THE ELEMENTS SHALL BE CHANGED AT
DIRTY
PRESSURE DROP OF 10 PSI BUT BE CAPABLE OF
WITHSTANDING
UP TO 25 PSI DEFFERENTIAL PRESSURE
WITHOUT ANY DAMAGE OCCURRING.
4.7
ALL FILTERS EXCEPT THOSE OF 3.4 SHALL BE FITTED WITH A
QUICK AND EASY OPENING FULL BORE END CLOSURE TO
ALLOW RAPID REPLACEMENT OF CARTRIDGE ELEMENTS
WITH THE MINIMUM OF DOWN-TIME, CLOSURE TO BE FITTED
WITH DAVIT.
TWO TYPES OF CLOSURE ARE ACCEPTABLE I.E . CLOSURES OF
THE “YOKE” TYPE OR 360 LOCKING TYPE.
4.7.1
CLOSURES SHALL COMPLY WITH ASME VIII DIVISION 1 SUB
SECTION A PART UG-35 IN SO FAR AS CLOSURES SHALL BE
DESIGNED AND INSTALLED SO THAT IT MAY BE DETERMINED
BY VISUAL EXTERNAL OBSERVATION THAT THE LOCKING
ELEMENT IS IN GOOD CONDITION AND IN FULL ENGAGEMENT
WHEN THE CLOSURE IS IN THE CLOSED POSITION.
4.7.2
TOKE TYPE CLOSURES SHALL BE DEFINED AS A DOUBLE
ANCHORED RETAINING BRIDGE WITH A SINGLE SCREW
LOCKING ELEMENT SUCH THAT THE COVER CAN BE SWUNG
CLEAR OF THE FILTER IN MORE THAN ONE DIRECTION.
4.7.3
QUICK OPENING CLOSURE SHALL BE DESIGNED SO THAT NO
TOOLS, LIFTTING GEAR OR SPECIALLISED KNOWLEDGE ARE
REQUIRED FOR OPERATION.
4.7.4
THE FILTER SHALL BE EQUIPPED WITH A VENT VALVE TO
DEPRESSURIZE IT PRIOR TO OPENING THE CLOSURE.
NOTE: SAFETY INTERLOCK FUNCTION IS NOT NECESSARY.
4.7.5
YOKE TYPE CLOSURES MUST HOWEVER BE DESIGNED SO
THAT ON OPERATION OF THE LOCKING ELEMENT THE COVER
IS LIFTEN CLEAR OF THE FILTER BODY ,SO GIVING VISUAL
INDICATION THAT ALL RESIDUAL PRESSURE HAS BEEN
REMOVAL PRIOR TO RELEASING RETAINING BRIDGE.
4.7.6
360 LOCKING TYPE CLOSURES SHALL INCORPORATE A
SAFETY BLEED INTERLOCK.
4
IGS-M-PM-105(0)-1999
THE SAFETY BLEED INTERLOCK SHALL ENSURE THAT THE
CLOSURES CANNOT BE REMOVED UNTIL THE FILTER HAS
BEEN DEPRESSURISED.
4.8
DRAIN VALVE(S) AS PER CLAUSE 3.2 OF THIS SPECIFICATION
SHALL BE FLANGED END LUBRICATED PLUG TYPE OF STEEL
CONSTRUCTION CONFORMING WITH BS 1570 AND API 6.D
LUBRICATED PLUG VALVE(S) SIZE SHALL BE MIN. 2 INCH FOR
BODY SIZE 6” AND LARGER AND MIN. 1 INCH FOR BODY SIZE 4”
AND SMALLER.
4.9
DIFFERENTIAL PRESSURE GAUGES AS PER CLAUSE 3.3 OF THIS
SPECIFICATION SHALL BE EQUIPPED WITH AN ADJUSTABLE
NEEDLE FOR RE-SETTING TO ZERO.
DIFFERENTIAL PRESSURE GAUGE SHALL BE EITHER BELLOW
OR PISTON TYPE. THE DIFFERENTIAL PRESSURE GAUGE MUST
BE CONNECTED TO THE FILTER BODY VIA NEEDLE VALVES IN
BOTH THE HIGH AND LOW PRESSURE LINES. DIFFERENTIAL
PRESSURE INDICATION SHALL BE FROM 0 TO 25 PSID.
4.10
HE MAXIMUM
ALL ABLE WORKING PRESSURE FOR THE
ESSELS SHALL BE LIMITED BY THE SHELL OR HEAD.
4.11
ANUFACTURE OF FILTER SHALL NOT COMMENCE PRIOR TO
RECEIPT OF DRAWING AND DESIGN APPROVAL FROM THE
PURCHASER.
4.12
O DETERMINE THE MAGNITUDE
OF WIND LOAD AND
EARTHQUAKE IT SHALL BE ASSUMED THAT WIND AND
EARTHQUAKE LOADS DO NOT OCCUR SIMULTANEOUSLY ,
THEN THE VESSEL SHOULD BE DESIGNED FOR EITHER WIND
OR EARTHQUAKE LOADING WHICHEVER IS GREATER.
4.13
LL SURFACES OF PRESSURE PARTS , AND NON-PRESSURE
PARTS DIRECTLY WELDED TO THE PRESSURE SHELL OR
OTHERWISE
NON-REMOVABLE
AND
EXPOSED
TO
THE
CONTAINED MDIAL SHALL HAVE EITHER THE SPECIFIED
CORROSION ALLOWANCE ADDED, OR BE FABRICATED FROM
CORROSION
RESISTANCE
MATERIAL
5
.
NO
CORROSION
IGS-M-PM-105(0)-1999
ALLOWANCE SHALL BE ADDED TO REPLACEABLE NONPRESSURE PARTS UNLESS SPECIFIED ON THE VESSEL DATA
SHEETS OR DRAWINGS.
4.14
PENINGS IN SHELLS AND HEADS SHALL BE STUDDED IN
ACCORDANCE WITH THE APPLICABLE CODE AND SHALL BE
ADEQUATE FOR PRESSURE AND TEMPERATURE TO BE
STAMPED ON THE VESSEL. EACH REINFORCEMENT PAD OR
SEGMENT SHALL BE PROVIDED WITH A ¼ UNC “ TELL TALE”
HOLE.
4.15
ABRICATED VESSELS AND HEAVY SECTIONS OF VESSELS
SHALL BE PROVIDED WITH SUITABLE LUGS OR EYE – RINGS
TO
FACILITATE
HANDLING
DURING
TRANSPORT
AND
ERECTION.
4.16
AX . VELOCITY THROUGH ANY CROSS SECTION OF FILTER
SUCH AS INLET AND OUTLET, INSIDE FILTER CASE, AND
FILTER ELEMENT, ETC. SHALL NOT EXCEED 20 M/SEC.
4.17
THE FILTER SHALL BE DESIGNED SO THAT:
4.17.1 THE RATIO OF ELEMENT(S) OUTER SURFACE AREA TO
ELEMENT BORE AREA SHALL NOT BE LESS THAN 8 I.E.
ELEMENT(S) LENGTH DIVIDED BY ELEMENT DIAMETER
SHALL BE GREATER THAN OR EQUAL TO 2.
4.17.2 THE CROSS SECTIONAL AREA OF ANNULUS BETWEEN CASE
AND ELEMENT SHALL BE GREATER THAN ELEMENT INNER
BORE CROSS- SECTIONAL AREA.
5.0
FABRICATION WELDING
5.1
ALL
FABRICATED
VESSELS
MUST
BE
DESIGNED
,
MANUFACTURER TESTED AND INSPECTED ACCORDING TO
ASME CODE SECTION VIII DIVISION 1.
5.2
ALL WELDS SHALL BE MADE BY THE SHIELDED METAL ARE ?
USING ELECTRODES OF A COMPOSITION AND QUALITY
COMPOSIBLE
WITH
THE
6
VESSEL
MATERIALS
,
IN
IGS-M-PM-105(0)-1999
ACCORDANCE WITH ? “B” PART UW OF THE ASME CODE,
SECTION VIII DIVISIONAL.
5.3
THE SUPPLIERS SHALL SPECIFY THE MAKE AND QUALITY ?
ELECTRODES
WHICH
HE
PROPOSES
TO
UTILISE
IN
FABRICATION. ALL WELDERS SHALL BE QUALIFIED UNDER
SECTION IX ? ASME CODE , WORK INVOLVING WELDING
SHALL NOT BE ? TO ANY OTHER CODES WITHOUT THE PRIOR
APPROVAL OF PURCHASER.
5.4
WELDING BY AUTOMATIC OR SEMI-AUTOMATIC EQUIPMENT
IS ? GAS BARE WIRE, CARBON – ARE OR FORGED WELDING
WILL NOT BE PERMITTED UNLESS SPECIFIED BY THE
PUCHASER.
5.5
ALL NOZZLES AND SMALL CONNECTIONS AND THEIR ? SHALL
BE ATTACHED TO THE VESSEL WITH FULL PENETRA? .
5.6
CIRCUMFERENTIAL WELDS SHALL BE SO LOCATED
THAT
VESSEL ? CAN BE MADE WITH ALL INTERNAL EQUIPMENT IN
PLACE.
6.0
HEAT TREATMENT
6.1
HEAT TREATMENT INCLUDING PRE OR POST-WELD HEAT
TREATMENT, OF VESSELS SHALL BE IN ACCORDANCE WITH
ASME PRESSURE VESSEL CODE, SECTION VIII DIVISION 1.
6.2
ALL FLANGED FACINGS AND THREADED CONNECTIONS MUST
BE ADEQUATELY PROTECTED AGAINST OXIDISATION DURING
THE HEAT TREATMENT.
7.0
PAINTING (ALKYD PAINT SYSTEM )
7.1
VESSEL AND PIPING SAND OR SHOT BLAST CLEANING SHALL
CONFORM TO SWEDISH STANDARD S.I.S. 05590-LATES T
EDITION FOR GRADE SA 2½ AND PROTECTIVELY COATED AS
FOLLOWS:
ONE COAT OF ZINC CHROMATE (PRIME COAL ) DRY
THICKNESS 3 MILS . ONE COAT OF MICACEOUS IRON OXIDE
(INTERMEDIATE COAT) DARK ADMIRALTY GREY, THICKNESS
2.5 MILS.
7
IGS-M-PM-105(0)-1999
8.0
INSPECTION
8.1
THE PURCHASER RESERVES THE RIGHT OF INSPECTION.
MANDATORY INSPECTION SHALL BE CARRIED OUT TO MEET
THE REQUIREMENTS OF ASME CODE SECTION VIII DIVISION 1.
8.2
IN ADDITION TO ANY MANDATORY CODE INSPECTION
REQUIRED , ALL MATERIALS AND FABRICATION SHALL BE
SUBJECT TO INSPECTION BY THE PURCHASER IF SO DESIRED.
8.3
PRIOR TO FINAL INSPECTION , ALL SLAG , LOOSE SCALE, DIRT
, GRIT , WELD SPATTER, PRINT , OIL AND OTHER FOREIGN
MATTER SHALL BE THOROUGHLY REMOVED SO THAT
INSPECTION MAY BE CARRIED OUT TO THE BEST ADVANTAGE.
8.4
FOLLOWING INSPECTION , ANY DEFECTS SHALL BE REPAIRED
AND THE REPAIR WELD SHALL BE RE-HEAT TREATED , IF
ORIGINALLY
REQUIRED
AND
RE-EXAMINED
BY
THE
PRESCRIBED METHOD FOR FREEDOM FROM DEFECTS . IF
CORRECTION
IS
REQUIRED
AND
INVOLVES
SERIOUS
ALTERATION , THE WRITTEN APPROVAL OF THE PURCHASER
SHALL BE OBTAINED BEFORE PROCEEDING WITH SUCH
CORRECTIONS.
9.0
TESTING
9.1
ALL VESSELS SHALL BE TESTED IN ACCORDANCE WITH THE
ASME CODES, RULES OR REGULATIONS.
9.2
ALL WELDED ATTACHMENTS PROVIDED WITH “TELL – TALE”
HOLES SHALL BE TESTED BY PNEUMATIC PRESSURE PRIOR TO
THE THERMAL STRESS RELIEF AND FINAL HYDROSTATIC
TEST.
9.3
ALL TEST CERTIFICATES MUST
BEAR THE PURCHASER’S
NAME AND ORDER NUMBER WHETHER THEY EMANATE
DIRECTLY
FROM
THE
MAIN
SUPPLIER
OR
A
SUB-
CONTRACTOR.
9.4
TEST CERTIFICATES MUST BE APPROVED BY THE PURCHASER
BEFORE DESPATCH INSTRUCTIONS ARE GIVEN .
8
IGS-M-PM-105(0)-1999
10.0 MISCELLANEOUS
10.1
RADIOGRAPHIC EXAMINATION SHALL BE PERFORMED WHEN
REQUIRED BY THE ASME CODE.
10.2
THE COMPLETED VESSEL SHALL BE PROVIDED WITH A NAME
PLATE SECURELY ATTACHED TO THE VESSEL BY WELDING.
THE
NAME
PLATE
SHALL
BEAR
THE
FOLLOWING
INFORMATION:
1- MANUFACTURER NAME
2- TYPE AND MODEL
3- SIZE
4- WORKING PRESSURE
5- DESIGN PRESSURE
6- TEST PRESSURE
7- WORKING TEMP.
8- WEIGHT
10.3
IF THE VESSEL IS POST-WELD HEAT – TREATED, NO WELDING.
IS PERMITTED AFTER STRESS RELIEVING.
10.4
REMOVABLE INTERNALS SHALL BE INSTALLED AFTER STRESS
RELIEVING.
11.0 INSPECTION NOTICE
11.1
THE SUPPLIER SHALL GIVE ADEQUATE NOTICE TO THE
PURCHASER
PRIOR
TO
ALL
INSPECTION/
TEST
VISITS
REQUIRED BY THE SPECIFICATION AND DESIGN CODES.
11.2
WHERE THE PURCHASER DESIRES TO VISIT THE WORKS TO
INSPECT THE WORK OF WITHNESS TESTS, ADEQUATE NOTICE
SHALL BE GIVEN TO THE SUPPLIER.
12.0 PLANT ACCESS
9
IGS-M-PM-105(0)-1999
12.1
THE
SUPPLIER
SHALL
ALLOW
FREE
ACCESS
TO
THE
PURCHASER TO ALL PARTS OF HIS OR HIS SUB-CONTRACTORS
WORKS,
FOR
THE
PURPOSE
OF
CARRVING
OUT
ANY
INSPECTION OR WITNESSING TEST , ETC.
12.2
THE SUPPLIER SHALL AFFORD THE PURCHASER, WITHOUT
CHARGE, ALL REASONABLE FACILITIES TO ENABLE HIM TO
VERIFY THAT VESSELS ARE BEING MANUFACTURED AND
TESTED IN ACCORDANCE WITH THIS SPECIFICATION.
13.0 ACCEPTANCE
13.1
THE PURCHASER’S APPROVAL OF WORK AND ACCEPTANCE
FOR SHOP TESTS ETC. , AND / OR HIS RELEASE OF VESSELS
FOR SHIPMENT SHALL IN NO WAY RELEASE THE SUPPLIER OR
RELIEVE HIM OF HIS RESPONSIBILITY FOR CARRYING OUT
ALL PROVISIONS OF THE SPECIFICATION , CODES AND/OR
FULFILMENT OF THE GUARANTEE, NOR DOES THE PURCHASER
BY
SUCH
APPROVAL
AND/
OR
RELEASE,
ASSUME
ANY
RESPONSIBILITY WHATSOEVER FOR SUCH PROVISIONS AND/OR
GUARANTEE.
13.2
RELEASE NOTES SHALL BE ISSUED BY THE PURCHASER FOR
EACH VESSEL AFTER FINAL INSPECTION AND TESTING AT THE
WORKS AND VESSELS SHALL NOT BE DESPATCHED UNTIL
SUCH RELEASE NOTES HAVE BEEN ISSUED.
14.0 SHIPMENT
14.1
PRIOR TO SHIPMENT , THE VESSEL SHALL BE THOROUGHLY
CLEANED AND ALL WATER , DIRT , SAND , WELD METAL
SPATTER AND OTHER FOREIGN MATTER SHALL BE REMOVED.
14.2
ALL TESTING LIQUIDS SHALL BE REMOVED AND UNITS DRIED
BEFORE PACKING.
14.3
ALL FLANGED OPENINGS PROPERLY PROTECTED WITH
SUITABLE STEEL COVERS. TAPPED OPENINGS SHALL BE
PROTECTED WITH THREADED STEEL PLUGS SCREWED IN.
14.4
ALL LOOSE GASKETS SHALL BE PACKED IN A SEPARATE
WOODEN CASE.
10
IGS-M-PM-105(0)-1999
14.5
BEFORE SHIPMENT IS MADE, THE PURCHASER’S WRITTEN
APPROVAL OF THE PROPOSED METHOD OF SHIPMENT MUST
BE OBTAINED.
14.6
EXPORT PACKING SHALL BE CARRIED OUT IN ACCORDANCE
WITH GOOD PRACTICE, THE MINIMUM ACCEPTABLE STANDARD
SHALL BE AS DEFINED IN THE APPLICABLE PARTS OF BS-1133 “
PACKING CODE” . THE PACK AGING SHALL BE APPROPRIATE FOR
STORAGE WITHOUT COVER ON SITE FOR UP TO THREE MONTHS
PRIOR TO INSTALLATION.
15.0 REPORTS AND DATA SHEETS (DOCUMENTATION)
15.1
THE SUPPLIER SHALL PROVIDE THE FOLLOWINGS WITH
QUOTATION.
15.1.1 LIST OF SECOMMENDED SPARE PARTS WITH UNIT PRICES TO
COVER :
- INITIAL COMMISSIONG
- FIRST 2 YEARS OPERATION
15.1.2
INSTALLATION , OPERATING , MAINTENANCE AND
SPARE PARTS MANUALS.
15.2
“ CONSTRUCTION DRAWINGS AND MATERIAL LISTS” SHALL
BE SUBMITTED BY SUPLIER AFTER PLACING.
THE ORDER AND PRIOR TO MANUFACTURING FOR NIGC
APPROVAL.
15.3
WHERE APPLICABLE THE FOLLOWING DOCUMENTS ARE TO
BE INCLUDED IN THE MANUFACTURERS DATA BOOK. WHICH
SHALL BE PROVIDED BY SUPPLIER.
15.3.1 A COPY OF THE CODE CALCULATION.
15.3.2 DESIGN DRAWINGS AND DATA.
15.3.3 CONSTRUCTION DRAWINGS INCLUDING MATERIAL LISTS.
15.3.4 FINAL CONSTRUCTION DRAWINGS.
15.3.5 WELDER’S QUALIFICATION PROCEDURES AND CERTIFICATES
15.3.6 WELDING PROCEDURES( INCLUDING REPAIR WELDING).
15.3.7 PRODUCTION TEST PROCEDURES AND CERTIFICATES.
11
IGS-M-PM-105(0)-1999
15.3.8 MATERIAL
CERTIFICATION
TESTING AND CHEMICAL
COVERING
MECHANICAL
ANALYSIS OF ALL PRESSURE
CONTAINING PARTS AND ATTACHMENTS.
15.3.9 STRESS RELIEF OR OTHER HEAT TREATMENT CHARTS DULY
SIGNED BY THE INSPECTOR.
15.3.10 RADIOGRAPHY AND/OR OTHER NON-DESTRUCTIVE TESTING
PROCEDURES AND CERTIFICATION, INCLUDING SKETCHES
SHOWINGTEST LOCATION AS AND WHERE NECESSARY.
15.3.11 FINAL, AS FITTED , GENERAL ARRANGEMENT DRAWINGS
APPROVED BY INSPECTION AUTHORITY.
15.3.12 ASME UL OR ULA
15.3.13 FACSIMILE OF NAMEPLATE AND INDENTIFICATION HARD
STAMPING.
15.3.14 PRESSURE TESTING CERTIFICATION.
15.3.15 GENERAL CERTIFICATE OF INSPECTION COPY OBTAINED
FROM INSPECTION AUTHORITY .
15.3.16 FINAL RELEASE NOTE.
A
AT QUOTATION STAGE
1-
GENERAL
ARRANGEMENT DRAWINGS SHOWING OUTLINE
DIMENSIONS AND WEIGHT.(TWO SETS).
2-
LIST OF RECOMMENDED SPARE PARTS WITH UNIT PRICES TO
COVER INITIAL COMMISSIONING AND TWO YERS OPERATION.
3-
ORIGINAL CATALOGUES.
4-
MAINTENANCE,
COMMISSIONING
INSTALLATION
AND
OPERATION MANUAL .
5-
ALL DOCUMENTS SHALL BE IN ENGLISH.
B
AT ORDERING STAGE
1-
FINAL
GENERAL
OUTLINE
ARRANGEMENT
DIMENSIONSSUCH
AS
DRAWINGS
SHOWING
SADDLES,
NOZZLES
ORIENTATION, WEIGHT , FOUNDATION BOLT HOLES, ALL
PIPING SYSTEMS SHOWN ON THE DATA SHEET , INTERNAL
PARTS, ETC .(TRANSPARENCIES)
12
IGS-M-PM-105(0)-1999
2-
CERTIFICATES OF INSPECTION, WELD PROCEDURE , WELDER
AND
WELDING
DESTRUCTIVE
TREATMENT
QUALIFICATION
TESTS
AND
,
,
MATERIALS
HYDROSTATIC
SPECIFIED
SAFETY
,
TEST,
RELIEF
NONHEAT
VALVE
CAPACITY.(7 SETS).
3-
FACSIMILE OF NAMEPLATE AND HARD STAMPING.(7 SETS).
4-
ASME , U-1 FORMS.(7 SETS).
5-
THE SUPPLIER SHALL ALSO FORWARD TO THE PURCHASER,
SEVEN COPIES OF ALL SUB-ORDERS. THIS , SHALL BE
ENDORSED WITH THE PURCHASER’S NAME AND ORDER
NUMBER.
6-
ILLUSTRATED SPARE PARTS LIST WITH PRICES. (SEVEN SETS).
7-
OPERATING AND INSTALLATION INSTRUCTIONS (SEVEN SETS).
8-
MAINTENANCE MANUAL .(SEVIN SETS).
15.4
THE SUPPLIER SHALL ALSO FORWARD TO THE PURCHASER 3
COPIES OF ALL ORDERS AND SUBORDERS. THESS SHALL BE
ENDORSED WITH PURCHASER NAME AND ORDER NUMBER
AND MUST INDICATE TO THE SUB-CONTRACTOR THAT THE
PURCHASER RESERVES THE SIGHT TO EXUEDITE/ INSPECT IF
HE SO WISHES AT ANY TIME DURING WORKING HOURS.
16.0 GUARANTEE
16.1
THE SUPPLIES SHALL GUARANTEE THAT LSS ARTICLES,
MATERIALS AND WORK COVERED BY THE ORDER WILL
CONFORM WITH THE SPECIFICATIONS , AND WILL BE NED ,
FIT AND SUFFICIENT FOR THE PURPOSE FOR WHICH THEY
ARE INTENDED, OF GOOD MATERIAL , DESIGN
AND
WORKMANSHIP .
16.2
SUPPLIER SHALL CONFIRM ALL SIZES AND DIMENSIONS
GIVEN IN THIS SPECIFICATION AND GUARANTEE THE DESIGN
PERFORMANCE OF THESE EQUIPMENT.
13
IGS-M-PM-105(0)-1999
17.0 DEPINITION OF PURCHASER
17.1
ALL
REFERENCE
SPECIFICATION
CODE
INCLUDE
TO
N.I.G.C
PURCHASER
OR
REPRESENTATIVE AND/OF INSPECTOR.
14
HIS
IN
THIS
ACAREDITED
IGS-M-PM-105(0)-1999
APPENDIX A
SITE LOCATIONS AND CLIMATIC CONDITIONS
1-
NORTH
2-
CENTER
3-
SOUTH
OF IRAN AS GENERAL
15
IGS-M-PM-105(0)-1999
SITE LOCATIONS
1
2
3
30°C
40°C
50°
-15°C
-10°C
C
50°C
65°C
1°C
%85
%35
80°
120 K.P.H.
120K.P.H.
C
1100MM
200 MM
%75
75MM
45MM
130
1-AMBIENT CONDITION
MAX AMBIENT TEMP.
MIN “ “
MAX SUN TEMP
MAX RELATIVE
BUMMIDITY
MAX WIND VELOCITY
TOTAL ANUMAL
RAINFALL
MAX RAINFALL IN A
DAY
K.P.
H.
150
MM
30M
M
2-
ATMOSPHERIC 1-RAINY
CONDITIONS
2- CLOUDLY
1- DUSTY
1-
2-CORROSIVE
DUS
TY
3- CORROSIVE
4-
BLOW
2OF
WIND
BL
OW
OF
WI
ND
&
DIR
T
3SAL
IFO
RO
US
4-
16
IGS-M-PM-105(0)-1999
CO
RR
OSI
VE
17
IGS-M-PM-105(0)-1999
APPENDIX B
GAS ANALYSIS
UNIT: MOLE%
COMPONENT
IGAT I
IGAT II
KHANGIRAN
1
AIR
_____
____
0.59
2
NITROGEN
0.57
1.818
0.01
3
CARBON DIOXIDE
0.40
4.975
98.51
4
METHANE
84.55
89.169
0.63
5
ETHANE
8.18
2.298
4 PPM
6
HYDROGEN SULPHID
2.1 PPM
0.609 PPM
0.10
7
PROPANE
4.4
0.510
0.02
8
ISO BUTANE
0.49
0.130
0.02
9
NORMAL BUTANE
1.03
0.140
0.02
10 ISO PENTANE
0.21
0.06
0.02
11 NORMAL PENTANE
0.17
0.04
0.06
12 HEXANE PLUS
TRACE
0.05
TOTAL
100.00
GAS SPECIFIC GRAVITY = 0.67 (AIR = 1.000)
AVERAGE MOLECULAR WEIGHT –19.41
GAS TEMPERATURE MIN. 50°F
MAX. 100°F
18
100.00