Control valves

Pressure reducing/surplussing valves

4.6.23

Materials

For part numbers 1 to 17, please go to page 2

No.

Part

18

Spring(s)

19

Bush (part of 20)

20

Sealing bellows assembly

Material

Chrome Vanadium

PTFE / steel composite

Stainless steel

Stainless steel 'S' type

Reinforced exfoiliated graphite

Steel zinc plated

Steel zinc plated

Steel zinc plated

Steel zinc plated

Steel

Steel zinc plated

Steel zinc plated

Steel zinc plated

Steel zinc plated

Steel

Steel

Steel zinc plated

Steel zinc plated

Steel zinc plated

Steel zinc plated

EPDM fabric reinforced

Nitrile fabric reinforced

Stainless steel

Fibre

Stainless steel

Steel zinc plated

Steel zinc plated

Steel zinc plated

Steel zinc plated

Stainless steel

Stainless steel

Stainless steel

Reinforced exfoliated graphite

AISI 316(L)

BS 970 230 M07

BS 970 230 M07

BS 3692 Gr. 8

BS 1449 Pt1 HR14

BS 970 230 M07

BS 1449 Pt1 HR14

BS 1449 Pt1 HR14

DIN 1514 St W24

BS EN 10025 S355 J2G3

BS 3692 Gr. 5.6

BS 3692 Gr. 8.8

BS 3692 Gr. 5

BS 3692 Gr. 8

BS 6105 A2

ASTM A351 CF8M

BS 1449 Pt1 HR14

BS 970 230 M07

BS 3692 Gr. 8

DTD 734

BS 6105 A2

ASTM A276 316L

21

Sealing bellows gasket

22

Clamp nut

25

Lock-nut

26

Spring plate

27

Needle bearing

28

Setting nut

29

Bearing plate

30

Circlip

31

Mounting plate

32

Housing

33

Housing screws

34

Housing nuts

Diaphragm

Diaphragm suffix 'N'

DN15 and DN20

DN25 to DN100

DN25 to DN100

DN32 to DN50

DN15 to DN25, DN65 to DN100

DN32 to DN50

DN32 to DN50

Types 1(N) to 4(N)

Type 5(N)

Types 1(N) and 2(N)

Types 3(N), 4(N) and 5(N)

Types 1(N) and 2(N)

Types 3(N), 4(N) and 5(N)

35

36

Hex. headed bolt

37

Sealing washer

38

Diaphragm clamp

39

Piston

40

Spindle

41

Mounting nuts

42

Coupling

43

Thread insert

44

Self-locking nut

45

Clamp plate

46

Clamp plate gasket

DN15 and DN20

DN25 to DN100

DN65 to DN100

DN65 to DN100

Page 4 of 10

TI-P203-01 CTLS Issue 17

DRV4 and DRV4G Cast Steel Pressure Reducing Valves