Control valves

Pressure reducing/surplussing valves

4.6.31

Materials

No.

Part

1

Body

2

Bonnet

3

Valve seat

4

Valve seat gasket

5

Valve head

6

Valve head screw

7

Valve head seal

8

Bush

9

Bush (part of item

10

Balancing bellows

11

Balancing bellows

12

Bonnet gasket

13

Bonnet nuts

14

Bonnet studs

15

Pillars

DN15 to DN50

DN65 to DN100

DN15

DN20 and DN25

DN32 to DN50

DRV7

DRV7G (soft seated)

DN15 and DN20

DN15 and DN20

DN25 to DN100

DN25 to DN100

DN25 to DN100

DN15 to DN40

M10

Material

SG iron

SG iron

SG iron

Stainless steel

Stainless steel

Mild steel

Reinforced exfoiliated graphite

Stainless steel

DIN 1693 GGG 40.3

ENG JS 400-18-LT

DIN 1693 GGG 40.3

BS 970 431 S29

BS 970 431 S29

BS 970 431 S29

BS 6105 A2

BS 970 431 S29

BS 970 431 S29

AISI 316 (L)

DIN 267 Pt13 Gr. 8

DIN 267 Pt13 Gr. 8.8

BS 970 230 M07

BS 3693 Gr. 8

DIN 1691GG25

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

Stainless steel

Stainless steel

Arlon 1555

Stainless steel

Stainless steel

Stainless steel

Reinforced exfoiliated graphite

Reinforced exfoiliated graphite

Steel

Steel

Steel zinc plated

Steel zinc plated

Cast iron zinc plated

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

/ Nitrile

10)

assembly

gasket

DN50 and DN65

DN80 and DN100 M16

DN15 and DN20

DN25 to DN100

DN25 to DN100

DN32 to DN50

DN15 to DN25, DN65 to DN100

DN32 to DN50

DN32 to DN50

DN25 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)

DN15 and DN20

DN25 to DN100

M12

16

Pillars nuts

17

Spring adjuster

18

Spring(s)

19

Bush (part of 20)

20

Sealing bellows assembly

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

35

Diaphragm suffix 'N'

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

TI-P204-01 CH Issue 14

DRV7 and DRV7G SG Iron Pressure Reducing Valves

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