44
Control systems Pressure reducing/surplussing valves
Materials
45
4.6 98
46
26
27 30
DN80
23
25 24
22
28
DN15 to DN50
No.
Part
Material
25
Main diaphragm plate
Stainless steel
BS EN 10088-3 1.4307
26
Push rod
Stainless steel
BS 970 431 S29
27
Control pipe assembly
Stainless steel
BS 3605 304 S14
28 29 30
Plug " BSP
Steel
Pressure pipe union
Steel
Lock-nut
Steel
BS 3692 Gr. 8
Body studs
Steel
BS 4439 Gr. 8.8
45
Steel
BS 3692 Gr. 8
Body nuts
DN15 to DN80
M12 x 40 mm
46
Upper main diaphragm chamber
Cast steel
1.0619+N
TI-P006-01 CTLS Issue 16
Page 6 of 12
DP143, DP143G, DP143H and DP143Y Pilot Operated Pressure Reducing Valves with Cast Steel Bodies
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