4.6.107

33

20

24

31

32

30

29

23

21

22

25

28

26

27

BS 2056 302 S 26

BS 970 431 S 29

BS 970 431 S 29

BS 2871 C 106 1⁄2H

DIN 1693 GGG 40.3

BS 3692 Gr. 8

BS 4439 Gr. 8.8

M10 x 25 mm

M12 x 30 mm

DIN 1693 GGG 40.3

DIN 1693 GGG 40.3

BS 3692 Gr. 8

BS 3692 Gr. 8.8

M12 x 50 mm

M12 x 55 mm

BS 2870 PB 102 1980

BS 2872 CZ 122

BS 970 431 S 29

BS 3692 Gr. 8

Note: This item is hidden from view

Materials - DP27 and DP27Y (Parts 20 to 34)

No. Part

20 Main valve return spring

21 Main valve

22 Main valve seat

23 Balance pipe assembly

24 Main valve body

25 Main body

26 Main diaphragm chamber

27 Main diaphragm chamber

28 Main diaphragm

29 Main diaphragms

30 Main diaphragm plate

31 Pushrod

32 Lock-nut

33 Control pipe assembly

34 Plug "

Securing nuts

Securing studs

- upper

- lower

Securing nuts

Securing bolts

BSP

Material

Stainless steel

Stainless steel

Stainless steel

Copper

SG iron

Steel

Steel

DN15 to DN32

DN40 and DN50

SG iron

SG iron

Steel

Steel

DN15 to DN32

DN40 and DN50

Phosphor bronze

Brass

Stainless steel

Steel

Brass and copper

Steel

Control valves

Pressure reducing/surplussing valves

DP27 and DP27Y

TI-P470-01 CH Issue 10

DP27, DP27E, DP27G, DP27GY, DP27R and DP27Y Pilot Operated Pressure Reducing Valves with SG Iron Bodies

Page 4 of 11