44
Control systems Pressure reducing/surplussing valves
Materials (continued) DPP17E
31
29
17 18
32
20 26 27 30 33
21 22 23
4.6 122
25
24
28
* Note: This product is also available in cast steel.
No.
Part
Material
17
Main valve
Stainless steel
BS 970 431 S 29
18
Main valve seat
Stainless steel
BS 970 431 S 29
20 * Main valve body
SG iron
DIN 1693 GGG 40.3
BS 4439 Gr. 8.8 BS 3692 Gr. 8
21
Main body securing studs and nuts
Steel M10 x 25 mm
22 * Main diaphragm chamber
SG iron
DIN 1693 GGG 40.3
BS 3692 Gr. 8.8 BS 3692 Gr. 8
23
Main diaphragm securing bolts and nuts
Steel M12 x 50 mm
24
Main diaphragms
Phosphor bronze
BS 2870 PB 102 1980
25
Main diaphragm plate
Brass
BS 2872 CZ 122
26
Push rod
Stainless steel
BS 970 431 S 29
27
Pipe assembly
Brass and copper
28 29 30
Plug 1/8 " BSP
Steel
Pressure pipe union
Brass
Lock-nut
Steel
BS 3692 Gr. 8
31
Solenoid valve
32
Lower pressure pilot bottom housing
SG iron
DIN 1693 GGG 40.3
33
Connecting nipple
Steel
TI-P208-01 CTLS Issue 4
Page 4 of 9
DPP17E and DPP17EE Pilot Operated Pressure Reducing Valves with SG Iron Bodies
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