SERIES 130 CLOSE COUPLED REGENERATIVE TURBINE PUMPS PART I - GENERAL

SERIES 130 CLOSE COUPLED REGENERATIVE TURBINE PUMPS  PART I - GENERAL
SERIES 130
CLOSE COUPLED REGENERATIVE TURBINE PUMPS
PART I - GENERAL
1.01
DESCRIPTION
The Contractor shall furnish materials, equipment and labor to
furnish, install and test the pumping system complete with the pumps,
motors, mounting bases, piping, valves and appurtenances, as indicated
on the contract drawings and as herein specified.
1.02
INSTALLATION
The Contractor shall insure that the pumps and motors are
properly installed with no pipe strain transmitted to the pump casing.
1.03
RESPONSIBILITY
To assure a properly integrated and compatible system, all
equipment described in this section shall be furnished by the Pump
Manufacturer, who shall assume full responsibility for the proper
operation of the pumps and associated equipment.
1.04
SUPERVISION
The Contractor shall arrange for the Pump Manufacturer to
provide a factory-trained representative as required for the purpose of
supervising installation, start-up, final field acceptance testing, and
providing instruction to the owner's operating personnel in the proper
operation and maintenance of the equipment in this section.
1.05
REFERENCE STANDARDS
The work in this section is subject to the requirements of
applicable portions of the following standards:
Hydraulic Institute Standards
IEEE Standards
NEMA Standards
OSHA Rules and Regulations
PART II - PRODUCTS
2.01
GENERAL DESCRIPTION
The pumps shall be horizontal close-coupled regenerative turbine
pumps, Aurora Pump series 130 or pre-approved equal. Pre-approval must
be obtained a minimum of ten days before bid date.
2.02
MATERIALS OF CONSTRUCTION
Casing.......................Cast Iron (ASTM A48)
Impeller.....................Bronze (ASTM B62)
Shaft........................Stainless Steel (AISI 416)
Impeller Sleeve..............Bronze (ASTM B62)
Channel Rings................Cast Iron (ASTM A48)
2.03
CASING
The casing shall have in-line suction inlet and suction outlet
with a separate stuffing box cover for Series 134 pumps. The suction
inlet and discharge outlet shall be NPT threaded. The casing shall
bolt directly to the motor.
2.04
IMPELLER
The impeller shall be of the regenerative turbine or peripheryvane type, with the pumping vanes machined on both sides of the
impeller to balance hydraulic thrust. The impeller shall be keyed to
the shaft, but not locked in place to allow the impeller to selfbalance between the channel rings. Balancing holes shall be machined
into the impeller to facilitate this floating action as required.
2.05
SHAFT
The impeller shall be direct-coupled to the motor shaft. The
motor shall be machined to provide a keyway, and drilled and tapped to
accept the impeller sleeve fastener. Stub shafts are not acceptable.
2.06
CHANNEL RINGS
The channel rings shall have an individual water passageway
machined, and cleaned of all burrs, trimmings and irregularities.
2.07
IMPELLER SLEEVE
The pump shall include an impeller sleeve fitted over and keyed
to the shaft to minimize shaft wear. The impeller shall fit over this
sleeve. The sleeve shall be locked to the shaft by means of a washer
and capscrew at the shaft end. The mechanical seal spring shall fit
onto the impeller sleeve.
2.08
MECHANICAL SEAL
Shaft sealing shall be accomplished by means of a mechanical
seal with a Ni-Resist seat, carbon washer, Buna-N elastomer, and
stainless steel metal parts.
2.09
MOTOR
The motor shall conform to the latest NEMA Standards, and shall
have to the following characteristics:
Enclosure.....................Open Drip Proof/TEFC/X-Proof
Number of Phases..............Three
Cycles........................60 Hz.
Voltages......................230/460 Volt
Speed.........................3600 RPM
Horsepower....................? hp
Each motor shall have a sufficient horsepower rating to operate
the pump at any point on the pump's head-capacity curve without
overloading the nameplate horsepower rating of the motor. The motor
shall have a service factor of at least 1.15. The service factor is
reserved for variations in voltage and frequency.
PART III - PERFORMANCE
3.01
CONDITIONS OF SERVICE
The following conditions of service shall be strictly adhered
to:
Number of Units......................?
Type of Drive........................? (variable or constant)
Discharge Size.......................1.5 in, minimum
Suction Size.........................2 in, minimum
Design Capacity...................... US gpm
Design Head.......................... ft
Efficiency at Design................. %, minimum
Rotative Speed.......................3500 RPM, maximum
Shut-off Head........................905 ft, minimum
Drive Horsepower.....................4.28 hp, minimum
NPSHR at Design...................... ft, maximum
3.02
INSPECTION AND FACTORY TESTS
Each regenerative turbine pump furnished under these
specifications shall be tested at the factory to verify individual
performance (VIP). Certified copies of all test reports shall be
submitted to the Engineer for approval prior to shipment.
3.03
INSTALLATION AND ACCEPTANCE TESTS
A.
The pumping units shall be installed in accordance with the
instructions of the manufacturer and as shown on the drawings by the
Contractor.
B.
Installation shall include furnishing the required oil and
grease for initial operation. The grades of oil and grease shall be in
accordance with the manufacturer's recommendations.
NOTES: Teflon is a registered trademark of E.I. DuPont.
Additional information is available from any Aurora Pump
authorized distributor.
Aurora Pump reserves the right to make revisions to its product
and their specifications without notice.
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