SECTION 15453 - PLUMBING PUMPS STANDARD
CONSTRUCTION STANDARD
PART 1: GENERAL
1.01
Purpose:
A.
The design guidelines contained herein includes the requirements for pumps
utilized for plumbing systems at The University of Texas at Austin. It is the
intention of this document to provide a standard for plumbing pump systems at
The University to provide the highest level of quality and consistency possible; it
is not intended to be a guide specification.
B.
The University of Texas has standardized the use of end suction pumps in lieu of
horizontal split-case pumps. Any deviation from this standard must be authorized
in writing by the University of Texas Project Manager at the beginning of concept
design. Types of pumps referred to in this section include the following:
1.
In-Line Re-circulation Pumps.
2.
Water Pressure Booster Systems.
3.
Duplex Pedestal Type Sump Pumps.
4.
Submersible Sump Pumps.
5.
Pumps furnished as part of factory-fabricated equipment such as a part of
fire pump skids, are to be end-suction, if available.
C.
Power supply wiring from power source to power connection on pumps. The
Mechanical Contractor shall include starters, disconnects, and required electrical
devices, except where specified as furnished, or factory-installed, by
manufacturer.
D.
Interlock wiring between pumps; and between pumps and field-installed control
devices shall be included as Division 15 work.
1.
E.
1.02
Interlock wiring specified as factory-installed is work of Division 15.
Control wiring between field-installed controls, indicating devices, and pump
control panels is a part of Division 15 work.
Quality Assurance:
A.
Manufacturer's Qualifications: Firms regularly engaged in manufacture of
plumbing pumps with characteristics, sizes, and capacities required, whose
products have been in satisfactory use in similar service for not less than 5 years.
Design & Construction Standards, Revised May 6, 2002
15453-1
SECTION 15453 - PLUMBING PUMPS STANDARD
CONSTRUCTION STANDARD
B.
Codes and Standards:
1. HI Compliance: Design, manufacture, and install plumbing pumps in
accordance with HI "Hydraulic Institute Standards".
2. UL Compliance: Design, manufacture, and install plumbing pumps in
accordance with UL 778 "Motor Operated Water
3. UL and NEMA Compliance: Provide electric motors and components, which
are listed and labeled by Underwriters Laboratories, and comply with NEMA
standards.
4. SSPMA Compliance: Test and rate sump and sewage pumps in accordance
with SUMP and Sewage Pump Manufacturers Association (SSPMA) and
provide certified rating seal.
5. HI Compliance: Design, manufacture, and install plumbing pumps in
accordance with HI "Hydraulic Institute Standards".
6. UL Compliance: Design, manufacture, and install plumbing pumps in
accordance with UL 778 "Motor Operated Water Pumps".
7. UL and NEMA Compliance: Provide electric motors and components, which
are listed and labeled by Underwriters Laboratories, and comply with NEMA
standards.
8. SSPMA Compliance: Test and rate sump and sewage pumps in accordance
with SUMP and Sewage Pump Manufacturers Association (SSPMA) and
provide certified rating seal.
1.03
Submittals:
A.
Product Data: Submit manufacturer's pump specifications, installation and startup instructions, and current accurate pump characteristic performance curves with
selection points clearly indicated to the University of Texas Project Manager for
distribution to the appropriate parties.
B.
Shop Drawings: Submit accurate and complete manufacturer's assembly-type
shop drawings indicating dimensions, weight loadings, required clearances, and
methods of assembly of components.
C.
Wiring Diagrams: Submit maintenance data and parts lists for each type of pump,
control, and accessory; including "trouble-shooting" maintenance guide. Include
this data, product data, shop drawings, and wiring diagrams in maintenance
manual; in accordance with requirements of Division l.
Design & Construction Standards, Revised May 6, 2002
15453-2
SECTION 15453 - PLUMBING PUMPS STANDARD
CONSTRUCTION STANDARD
PART 2: PRODUCTS
2.01
Pumps:
A.
2.02
2.03
General: Provide pumps of same type by same manufacturer.
In-Line Re-Circulation Pumps:
A.
General: Provide in-line re-circulation pumps where indicated, and of capacities
as scheduled.
B.
Type: Maintenance-free circulator designed for 125psi working pressure 225˚F
continuous water temperature and specifically designed for quiet operation.
C.
Body: Stainless steel fitted construction with iron body.
D.
Shaft: Steel, ground and polished, metal impregnated carbon thrust bearing.
E.
Motor: Non-overloading at any point on pump curve, open, drip proof, sleeve
bearings, quiet operating, rubber mounted construction, built-in thermal overload
protection.
F.
Coupling: Self-aligning, flexible coupling.
G.
Manufacturer: Subject to compliance with requirements, provide in-line recirculation pumps are as follows:
1.
Grundfos Pumps Corp.
2.
Engineer-approved equivalent
Water Pressure Booster System:
A.
General: Provide factory-fabricated and tested water pressure booster system
consisting of diaphragm type water tank, centrifugal pumps, power and control
panels, instrumentation, and operating controls. It is a University Standard to
provide all booster pumps with a valved bypass to facilitate maintenance.
B.
Pumps: Provide 2 constant speed, single stage, end-suction design, cast-iron;
bronze fitted centrifugal pumps with mechanical shafts seals. Mount pumps on
vibration insulators. Provide temperature probe and electric purge valve
immediately upstream of each PRV. Provide drip-proof motors.
C.
Water Tank: Provide factory pre charged diaphragm type water tank with
replaceable flexible membrane. Construct in accordance with ASME Code and
provide ASME stamp for 125-psi minimum.
D.
System Controls: Maintain system pressure with pilot-operated diaphragm type
combination pressure regulating and non-slam check valve on each pump
discharge line.
Design & Construction Standards, Revised May 6, 2002
15453-3
SECTION 15453 - PLUMBING PUMPS STANDARD
CONSTRUCTION STANDARD
1.
Provide low system pressure switch located on discharge header to sense
drop in system pressure, and to activate alarm and automatically start
standby pump.
2.
Provide adjustable vane type flow switch to sequence lag pump.
E.
Control Panel: Provide UL-listed, NEMA l, hinged door, lockable control panel
containing the following:
F.
For Each Pump:
G.
1.
Fused disconnect switch
2.
Motor starter with 3-leg overload protection.
3.
Running light.
4.
Multiple position motor control switch.
5.
Discharge pressure gage.
For System:
1.
115-V control transformer.
2.
Control power switch.
3.
Indicating lights.
4.
Relays.
5.
Visual alarm system.
6.
Suction pressure gage.
H.
Prefabrication: Factory-prefabricate booster system, mount all components on
common structural stand, provide interconnecting piping, isolation valves on
suction and discharge of each pump, suction and discharge piping manifolds,
shutoff cocks for gages and pressure switches, and factory-wiring.
I.
Factory-Test: Provide electrical and hydraulic test on assembled unit prior to
shipment. Provide system operating flow test from o to 100% design flow rate at
scheduled suction and discharge pressure conditions. This test shall be witnessed
by personnel assigned by the University of Texas Project Manager.
J.
Manufacturer: Subject to compliance with requirements, provide water pressure
booster systems, but are not limited to the following:
Design & Construction Standards, Revised May 6, 2002
15453-4
SECTION 15453 - PLUMBING PUMPS STANDARD
CONSTRUCTION STANDARD
2.04
1.
Armstrong Pumps, Inc.
2.
PSF; Div. Messco Inc.
3.
SyncroFlo, Inc.
Duplex Pedestal Type Sump Pumps:
A.
Pump: Duplex, centrifugal, semi-open impeller type sump pump, complete with
galvanized steel strainer, cast-iron base plate, suction plate and casing, and castiron or bronze impeller.
B.
Shaft: Stainless steel of length to suit depth of basin, connected with flexible
coupling to motor, and intermediate sleeve bearing for lengths over 4'.
C.
Motor: Open drip-proof, electrical characteristics as scheduled.
D.
Basin: Fiberglass construction of indicated dimensions, with inlet connections of
size and location as indicated. Maintain minimum of 3' depth below lowest inlet
invert.
E.
Cover: Cast-iron or steel circular cover with manhole or handhole opening,
depending on diameter. Provide openings for pump, control rod, and discharge
piping.
F.
Controls: Pump controls shall include float switch with gas-tight seals, bronze or
stainless steel floats and rods, alternator, high level automatic alarm switch with
gas-tight seals, and provisions for activation of a remote alarm light. Control
panel shall be a factory-wired NEMA Type 1 enclosure and shall include
alternator, combination motor controller with circuit breaker, provisions for
activation of a remote alarm light, control power transformer, and pump running
lights. Alarm switch and all controls shall operate on 120 volt, 60 hertz,
alternating current.
G.
Subject to compliance with requirements,
Available Manufacturers:
manufacturers offering pedestal type sump pumps which may be incorporated in
the work include, but are not limited to, the following:
H.
Manufacturer: Subject to compliance with requirements, provide pedestal type
sump pumps of one, but not limited to the following:
1.
Armstrong Pumps, Inc.
2.
Aurora Pump; Unit of General Signal.
3.
4.
Bell and Gossett Pumps.
Pace Pumps.
Design & Construction Standards, Revised May 6, 2002
15453-5
SECTION 15453 - PLUMBING PUMPS STANDARD
CONSTRUCTION STANDARD
2.05
5.
Ingersoll-Rand Co.
6.
Peerless Pump.
7.
Taco Pumps.
8.
Weinman Pumps.
Submersible Sump Pumps:
A.
General: Provide submersible sump pumps as indicated, of size and capacity as
scheduled.
B.
Pump: Cast-iron shell, bronze impeller, stainless steel shaft, factory-sealed grease
lubricated ball bearings, ceramic mechanical seal, and perforated steel strainer.
C.
Motor: Hermetically sealed, capacitor-start, with built-in overload protection,
electrical characteristics as scheduled. Provide 20' of 3-conductor PVC cord and
molded grounding plug.
D.
Controls: Float-operated mercury switch.
E.
Manufacturer: Subject to compliance with requirements, provide submersible
sump pumps of one, but not limited to the following:
F.
1.
Aurora Pump; Unit of General Signal.
2.
Federal Pump Corp.
3.
Goulds Pumps, Inc.
Provide with stainless steel safety/lifting chain.
PART 3: EXECUTION
3.01
Installation Of Pumps:
A.
General: Install plumbing pumps in accordance with manufacturer's published
installation instructions, complying with recognized industry practices to ensure
that plumbing pumps comply with requirements and serve intended purposes.
Provide valved bypasses around all booster pumps to facilitate maintenance.
B.
Access: Provide access space around plumbing pumps for service as indicated,
but in no case less than that recommended by manufacturer.
C.
Support: Install base-mounted pumps on minimum of 4" high concrete base equal
or greater than 3 times total weight of pump and motor, with anchor bolts poured
in place. Set and level pump, grout under pump base with non-shrink grout.
1.
Install in-line pumps, supported from piping system.
Design & Construction Standards, Revised May 6, 2002
15453-6
SECTION 15453 - PLUMBING PUMPS STANDARD
CONSTRUCTION STANDARD
D.
Support: Refer to Division-15 section "Vibration Control" for support and
mounting requirements of plumbing pumps.
E.
Basins: Install sump pump basins in indicated locations and connect to sewer
lines. Brace interior of basin in accordance with manufacturer's instructions, to
prevent distortion or collapse during concrete placement. Refer to Division 3 for
concrete work; not work of this section. Set cover over basin; fasten to top flange
of basin. Install so cover is flush with finished floor.
F.
Electrical Wiring: Install electrical devices furnished by manufacturer but not
specified to be factory-mounted. Furnish copy of manufacturer's wiring diagram
submittal to Electrical Installer.
1.
G.
Verify that electrical wiring installation is in accordance with
manufacturer's submittal and installation requirements of Division-16
sections. Do not proceed with equipment start-up until wiring installation
is acceptable to equipment installer.
Piping Connections: Refer to Division-15 plumbing piping sections. Provide
piping, valves, accessories, gages, supports, and flexible connections as indicated.
END OF STANDARD 15453
Design & Construction Standards, Revised May 6, 2002
15453-7