Control systems Pneumatic actuators
4
Materials
16
5 2
8 9
4 7 3
17
18
6
15
12 10
13 and 14
11
1
4.2 3
No.
Part
Material
1 2 3 4 5 6 7 8 9
Yoke
SG iron
Upper diaphragm housing
Carbon steel (Zn. plated)
Diaphragm plate
Aluminium
Diaphragm (optional EPDM for T version)
Reinforced NBR
Spring
Spring steel
Spindle
Stainless steel
Washer
Carbon steel (Zn. plated)
Spacer
Carbon steel (Zn. plated)
'O' ring
Viton
10
Connector
Stainless steel
BS 970 431 S29
11
Adaptor
Stainless steel
BS 970 431 S29
12 13 14 15 16
Collar
Stainless steel
1.4057
Clamp front
Stainless steel
BS 3100 Pt 2 304 C15
Clamp rear
Stainless steel
BS 3100 Pt 2 304 C15
Scale
Stainless steel
BS 1449 304 S16
Vent plug
Brass
17
Bearing
PTFE/steel composite
18
Seal
Polyurethane (FKM for T version)
Materials continued on next page
TI-P357-30 CTLS Issue 18
Page 3 of 49
PN9000 Series Pneumatic Actuators for use with Spira-trol TM Control Valves
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