Product Handbook 2026 - Volume 1

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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