Control systems Pressure reducing/surplussing valves
4
Materials (continued)
No.
Part
Material
DN25 to DN50 (Parts 42 and 46 are not shown)
Housing seal 'O' ring
50
EPDM or suffix 'N' Nitrile
51
Vent plug Plastic
Coupling clamp
Zinc plated steel
52
ASTM A216 Gr. WCB
53
Spring Spring steel
BS 5216 Gr. M4
Clamp screw
Zinc plated steel
45
54
BS 4168 Gr. 12.9
16
4.6 69
30
17
44 16
18
20
22
DN15 to DN20
21
19
25
28
54 53
52
27
29
26
40 48 38 41 47 35 50 31
33 34 36 32 51 39 49 43
37
TI-P205-01 CTLS Issue 12
Page 5 of 11
DEP7 SG Iron Excess Pressure Valve
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