Sterling A0552321 User Manual

Pump Tanks 

Chapter 2: Functional Description 

9 of 36 

 

 

All cooling tower and chilled water pump tanks are available with the following: 

•  Standby pump 
•  Frame reinforcement for supporting other equipment 
•  Special paint 
•  Mild steel well and fittings (divider if applicable) 
•  Second pump ledge 
•  Support legs 
•  OSHA handrail and ladder 
•  Thermostat and thermowell 
•  Extra thermostats and plugged 1/2” NPT thermostat openings 
•  High- and/or low-temperature alarm 
•  High- and/or low-pressure alarm 
•  High- and/or low-level alarm 
•  No flow alarm 
•  Re-circulating (P2) pump (standard on dual well tanks) 
•  Dual duty (P3) standby pump with isolation valving 
•  Additional plugged or valved openings 
•  Clayton float valve 
•  Discharge manifold with process and re-circulation pump standby butterfly valving 
•  NEMA 1 pump starter(s), mounted or un-mounted 
•  NEMA 12-rated central control panel 
•  Protection for outdoor installation 

Chilled water pump tanks are also available with: 

•  Automatic pressure regulating bypass valve for single well tanks; assures full flow 

through the chiller evaporator 

Cooling tower water pump tanks are also available with: 

•  Insulation 
•  Cover