Page 111 - HVAC Pump Handbook

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Physical Description of HVAC Pumps

108 HVAC Pumps and Their Performance

TABLE 5.1 Classification of HVAC Pumps

be the least confusing and will be the name used herein. Hopefully,
this chart will prove to be a guide for the designer to the most popular
types of pumps used on these water systems.

5.3 Two Basic Types of Centrifugal Pumps
As demonstrated in Chap. 4, there are two principal types of centrifu-
gal pumps for HVAC water systems; these are volute and axial-flow
pumps. The volute pump is offered in many configurations and han-
dles much of the pump duty on HVAC systems.
Although not as popular as the volute pump, the axial-flow pump
handles some very important services. The words axial flow best

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