Page 113 - HVAC Pump Handbook

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Physical Description of HVAC Pumps

110 HVAC Pumps and Their Performance

Figure 5.2 Horizontally mounted end-suction pumps. (From Patterson Pump Company
HVAC Pumps and Systems Manual, 2004.)

The actual factors that determine which type of pump is to be selected
for a particular application are discussed in Chap. 6.
Single-suction pumps are furnished in a number of configurations
for the many small applications in HVAC; these are as follows:

1. Close coupled (Fig. 5.2a). This configuration is so named because
the motor is connected directly through an end bell flange to the volute
casing of the pump. The motor is special because it must have a type
JM extended shaft on pumps with mechanical seals and a type JP
extended shaft on pumps with packing.

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