Control systems Pressure reducing/surplussing valves
4
Materials (continued)
29 External downstream pressure sensing pipe union
DN15 to DN50 (½" to 2")
4.6 109
26 27 30
25 24
23
28
No.
Part
Material
Securing nuts
Stainless steel
BS 3692 Gr. 8
Stainless steel
BS 6105 A4/80
DN15 to DN20 (½" to 2")
M12 x 50 mm
23
Main diaphragm
DN25 and DN32 (1" to 1¼")
M12 x 60 mm
Securing bolts
DN40 and DN50 (1½" to 2")
M12 x 65 mm
DN80 (3")
M12 x 80 mm
24
Main diaphragms
Stainless steel
BS 1449 316 S31
25
Main diaphragm plate
Stainless steel
BS EN 10088-3 1.4307
26
Pushrod
Stainless steel
BS 970 431 S29
27
Control pipe assembly
Stainless steel
BS 3605 304 S14
28 29 30
Plug 1/8 " BSP
Stainless steel
BS 970 431 S29
Pressure pipe union
Stainless steel
BS 970 316 S31
Lock-nut
Stainless steel
BS 6105 A4/80
Materials continued on the next page
TI-P107-01 CTLS Issue 13
Page 5 of 14
DP163, DP163G and DP163Y Pilot Operated Pressure Reducing Valve with Stainless Steel Bodies
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