Control systems Pressure reducing/surplussing valves
4
Materials
1 2 3 4
5 6
12
8
7
9 10 11
13
14
DN15 to DN50 (½" to 2")
4.6 107
No.
Part
Material
1 2 3 4 5 6 7
Adjustment screw
Stainless steel
BS 6105 A4/80
Adjustment lock-nut
Stainless steel
BS 6105 A4/80
Washer
Stainless steel
BS 1449 304 S16
Spring housing
Stainless steel
DIN 3100 316 C12
Top spring plate
Stainless steel
BS 970 431 S29
Pressure adjustment spring
Stainless steel
BS 2056 302 S25
Bottom spring plate
Stainless steel
BS 970 431 S29
Securing nuts
Stainless steel
BS 6105 A4/80
8
Spring housing
Stainless steel
BS 6105 A4/80
Securing studs
DN15 to DN50 (½" to 2")
M10 x 30 mm
9
Pilot diaphragm
Stainless steel
BS 1449 316 S31
10
Pilot valve housing
Stainless steel
BS 3100 316 C12
11
Pilot valve plunger
Stainless steel
BS 970 431 S29
12 13 14
Spring housing cover
Stainless steel
BS 1449 304 S12
Pilot valve and seat unit
Stainless steel
BS 970 431 S29
Internal strainer
Stainless steel
BS 1449 304 S16
Materials continued on the next page
TI-P107-01 CTLS Issue 13
Page 3 of 14
DP163, DP163G and DP163Y Pilot Operated Pressure Reducing Valve with Stainless Steel Bodies
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