Flowserve Pac-Seal Type 21 User Manual download pdf (Page 2)

Description

Pac-Seal Types 21 and 31 feature uniquely designed crimped heads

and hex-torque drive systems that provide a solid engineered advantage

over other seal types. The Type 31 is the Pac-Seal designation for the

Type 21 seal with hard face combination. Generally these are reserved

for severe duty applications, in the Type 21 design envelope. Both Types

21 and 31 are available in double seal congurations and balanced

versions.

Part Reference Description

2 Seal Drive/Drive Band

14 Stationary Face/Mating Ring

15 Rotating Face/Primary Ring

16 Spring

28 Shell

126 Gasket/Elastomer Cup/Cup Gasket

142 Retainer/Spring Retainer

157 Bellows Diaphragm/ Elastomer Bellows

2 157

15 126

2816

142

Type 21 and Type 31 Nomenclature Figure 1

1 2 3 4 5 6 7 8

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Flowserve Pac-Seal Type 21 User Manual Page 2