Samson 3331/3278, Монтаж и эксплуатация

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EB 8227 EN
5
Design and principle of operation
Fig. 2 · Sectional diagram of the butterfly valve
1 Valve body
2 Gland flange
3 Yoke
4 Shaft
4.2 Feather key
5
Packing
6 Spring
7 Tapered pins
8 Butterfly disc
9 Internal bearing
10 Plug
12 Type BR 31a
Actuator
12.1 Stop
12.2 Stop screw
13
Type 3278 Actuator
13.1 Stop screw
13.2 Stop screw
Pfeiffer Type BR 31a Actuator Type 3278 Actuator
Angle-seated/
low-noise disc Swing-through
disc