Page 127 - HVAC Pump Handbook

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Physical Description of HVAC Pumps

124 HVAC Pumps and Their Performance

Figure 5.13 Common packing arrangement. (From Karassik et al.,
Pump Handbook, 3d ed., McGraw-Hill, used with permission.)

have much information on the types of seals and their application.
Although the trend is toward mechanical seals, there are still places
where packing may be a better answer for ease of maintenance.

5.6.4 Packing or seals
Typical packing for these centrifugal pumps is shown in Fig. 5.13, and
the basic parts of a mechanical seal are described in Fig. 5.14.

Figure 5.14 Basic parts of a mechanical seal. (From Karassik et al., Pump Handbook,
3d ed., McGraw-Hill, used with permission.)

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