7-2
Reverse Action TypeDirect Action Type
No. Parts Name No. Parts Name No. Parts Name
1 Hex Nut 17 Hex Bolt 32 Rod
2 Spring Washer 18 Bushing 33 Truss Screw
3 Washer 19 Dust Seal 34 Scale Plate
4 Handwheel 20 Stem Connector 35 Name Plate
5 Lock Nut 21 Screw Shaft 36 Drive Screw
6 Washer 22 Housing 37 Yo k e
7 O-Ring 23 Spring Pin 38 Rain Cap
8 Bearing 24 Seal Washer 39 O-Ring
9 O-Ring 25 Hex Bolt 40 Rod Packing
10 Nut 26 Diaphragm Case(Top) 41 Bearing Washer
11 Washer 27 Spring 42 Nut
12 Diaphragm Retainer 28 Hex Bolt 43 Bearing Case
13 Eye Bolt 29 Hex Nut 44 Setscrew
14 Diaphragm 30 Diaphragm Plate 45 Connection
15 Hex Nut 31 Diaphragm Case (Bottom) 46 Seal Washer
16 Spring Plate
Figure 7-1 Model PSA1 Actuator with Top Handwheel