Chilled Water Pump Pressure

Chillers range in size from smaller than 5 tons all the way up to several hundred tons.

Chilled water pump pressure.

The chilled water pump is a part of an overall chilled water system that often includes a chiller piping valves fittings expansion tank air handling units and fan coil units. Support pumps and piping separately so that weight of piping system does not rest on pumps or its support. Install pressure gauges on chilled water pump suction and discharge lines in such way to be easily readable and completely isolated from vibration. The pumps are coupled with motors and supplied.

The chilled water pump is used to circulate chilled water in a closed system. The units are generally large end suction or horizontal split casing pumps running at 1450 rpm. Control of the chilled water from pressure to velocity to volume is up to the control system controlling the pumps and valve actuators in the system. Condensate pumps often deliver water from an atmospheric receiver to a deaerator operating at 5 psig meaning that in addition to the other heads the pump must overcome a pressure head of 5 psig.

Chilled water pumps circulate the water through the pipes and heat exchanger. This guide covers the design and selection of a chilled water pump. One psig equals 2 31 feet so the differential head in this application is 5 x 2 31 11 6 pressure head is a consideration only in some open systems. In addition to minimal inlet pressure the designer needs to calculate the pressure loss from resistance of the system via pipe friction loss and most importantly the pressure drop of the inlet strainer figure 2.

Chilled water pumps are used in ac application multistoried buildings air conditioning is based on chilled water principle.