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Pump Tanks Chapter 2: Functional Description 8 of 36
2-3 Standard Features
All tower and chilled water pump tanks come standard with the following:
• ODP motors and cast iron impellers on standard pumps
• Centrifugal pump(s) with cast iron housings, cast iron impellers and mechanical seals
• Solid diamond-plate pump ledge
• Standard hardware includes thermometer(s), compound liquid-filled pump pressure
gauge(s) with trim, and drain valve
• Heavy gauge 304 stainless steel construction.
Note: Despite its name, stainless steel is still susceptible to discoloration. A
stainless steel tank will not “rust through” even though the surface of the
metal may appear to be rust colored. This appearance may be caused by
water quality (high chloride content or increased acidity in the water) or
cross contamination from carbon steel dust in the vicinity of the stainless
steel. The integrity of the stainless steel remains in tact even though its
appearance is not perfectly clean.
• Factory-installed insulation and covers (chilled water pump tanks)
• Water strainer basket on cooling tower water pump tank models
• Threaded (up to 3” and flanged 4” and above) overflow opening, return openings
(chilled water pump tanks), and process water return (dual-well cooling tower pump
tanks)
• 1” automatic water makeup valve for “hands-off” level control
• 1/2” opening for field-installed thermometer
• 2” valved drain connection
• Twin 1/2” plugged openings for sight glasses
• Six 1/2” plugged openings with brackets for optional/future thermostats
• Baffles and sidewall reinforcements on larger models
• Full-size pump trim for maximum efficiency including butterfly valve (less handle)
and reducer (if necessary) on the suction side; increaser, check valve and butterfly
valve (less handle) on the discharge side
• One year warranty on parts and labor (labor in North America only)