Control systems Pressure reducing/surplussing valves
4
Materials - DP27 and DP27Y
1
2 3
4
5
7
6
4.6 167
No. Part
Material
1 2 3 4 5 6
Adjustment screw
Steel
BS 3692 Gr. 8.8
Adjustment lock-nut
Steel
BS 3692 Gr. 8
Spring housing
SG iron
DIN1693 GGG 40.3
Top spring plate
Stainless steel
ASTM A351/A351M CF8M
Pressure adjustment spring
Stainless steel
BS EN 10270-3:2001 302 S 26
Bottom spring plate
Hot brass stamping
BS EN 12165 CW617N
Securing nuts
Steel
BS 3692 Gr. 8
Steel
BS 4439 Gr. 8.8
7
Spring housing
Securing studs
DN15 to DN32
M10 x 95 mm
DN40 and DN50
M12 x 95 mm
TI-P470-01 CTLS Issue 13
Page 3 of 16
DP27, DP27E, DP27G, DP27GY, DP27R & DP27Y Pilot Operated Pressure Reducing Valves with SG Iron Bodies
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