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PRODUCTS
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| The Industry Standard In End Suction Pump Design |
| Series 1531 Pumps |
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| Standard Design Features |
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| 1. |
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Self-flushing
mechanical seals ensure maximum seal
face lubrication, heat dissipation and debris
removal without vulnerable, external flush
tubing. As much as 25 percent of the total
pump flow con- tinuously flushes the seal
faces |
| 2. |
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Back pull-out design allows one service
tech ease of maintenance |
| 3. |
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Aluminum bronze shaft sleeve construction is
standard. Special sealing between the sleeve
and shaft prevents corrosion of the shaft
by the pumped fluid |
| 4. |
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Enclosed, balanced impeller for quiet, vibration
free performance. Impellers are precision
fitted to the shaft and positively locked
with a shaft key |
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| 5. |
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Heavy duty cast iron volute construction
for 175 PSI working pressure |
| 6. |
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Jacking bolts provide ease of volute disassembly |
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Gauge tappings on the suction and discharge flanges along with volute vent and drain tappings are standard |
| 8. |
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Hydrostatic testing of each pump is standard |
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| Optional Equipment |
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All iron construction |
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All bronze construction |
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Bronze casing wear ring |
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Vertical mounting |
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EPT, Viton or Teflon mechanical seals |
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| Engineering Specification |
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| Furnish and install pumps with capacities as shown on plans. Pumps shall be close coupled, single stage, end suction design, capable of being serviced without disturbing piping connections. |
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| Pump volute shall be Class 30 cast iron. The impeller shall be cast bronze enclosed type, balanced, keyed to the shaft and secured by a locking capscrew. |
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| The liquid cavity shall be sealed off at the motor shaft by an internally flushed mechanical seal with ceramic seal seat and carbon seal ring, suitable for continuous operation at 225°F. A replaceable shaft sleeve of bronze alloy shall completely cover the wetted area under the seal. |
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| Pumps shall be rated for 175 psi maximum working pressure. Volute shall have gauge tappings at the suction and discharge nozzles and vent and drain tappings at the top and bottom. |
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| Motor shall meet NEMA specifications and shall be of the size, voltage and enclosure called for on the plans. It shall have heavy duty grease lubricated ball bearings, completely adequate for the maximum load for which the motor is designed. |
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| The pump(s) selected shall conform to ANSI/HI 9.6.3.1 standards for Preferred Operating Region (POR) unless otherwise approved by the engineer. The pump NPSH shall conform to the ANSI/HI 9.6.1-1997 standards for Centrifugal and Vertical Pumps for NPSH Margin. |
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| Each pump shall be factory tested per Hydraulic Institute standards. It shall then be thoroughly cleaned and painted with at least one coat of high-grade machinery enamel prior to shipment. |
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| The pump(s) shall be manufactured, assembled and tested in an ISO 9001 approved facility. |
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| Pumps shall be Series 1531 as manufactured by ITT 8ell and Gossett. |
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