44
Control systems Pneumatic actuators
Materials
32
21
15
23 3 16
31 10 19 29
9 18
8 4
5
6
30 10 16 15
31 2 26 17
7
22, 27, 28 24 14 11
33 25 12
4.2 52
13
1
No. Part
Material
No. Part
Material
18 Nut and threaded bar
1 2
Yoke
SG iron
Carbon steel (plated)
Lower cylinder end cap Upper cylinder end cap
SG iron BS EN 1563 GJS 400 18U-LT SG iron BS EN 1563 GJS 400 18U-LT
19 Threaded bar
M12 Carbon steel (plated)
" NPT vent plug
3
20
LD Polyethylene
(not shown)
4 5 6 7 8 9
21 Cover
Cylinder
Composite tube
PVC
22 Scale
Piston
SG iron
Stainless steel
23 Nut
Spring
Chrome vanadium steel
M12 Carbon steel (plated)
24 Lock-nut
Spindle
Stainless steel
M20 Stainless steel
25 Cap screw
Spindle sleeve
Carbon steel (plated)
Carbon steel (plated)
26 Bolt
Lock-nut
M27 Carbon steel (plated)
M12 Stainless steel
10 Bearing and seal insert 11 Indicator plate
27 Pan head screw
Carbon steel (plated)
Carbon steel (plated)
28 Nut
M2.5 Carbon steel (plated)
Stainless steel
29 'O' ring 30 'O' ring 31 'O' ring
Fluorocarbon rubber (Viton)
12 Top connector
Carbon steel (plated)
Fluorocarbon rubber (Viton)
13 Bottom connector
Carbon steel (plated)
Fluorocarbon rubber (Viton)
14 Connector
Stainless steel
32 Spring washer 33 Spring washer
M12 Carbon steel (plated)
15 Rod seal wiper
Polyurethane
M10 Carbon steel (plated)
16 DU plain bearing
PTFE/steel composite
17 Long nut
Carbon steel (plated)
TI-P327-01 CTLS Issue 5
Page 2 of 7
TN2000 Series Pneumatic Piston Actuators for DN125 to DN300 SPIRA-TROL Series Control Valves
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