44
Materials - DP27 and DP27Y (continued) Control systems Pressure reducing/surplussing valves
8 9
Exploded view of item 11
15 16
*10
4.6 168
11
*14 *13 *12
8 9
Pilot diaphragms
Phosphor bronze
BS 2870 PB102 1980
Pilot valve chamber
SG iron
EN JS 1025
* Note: Items 10, 12, 13 and 14 are shown on the exploded view, as they are hidden by the pilot filter on the main illustration.
No.
Part
Material
10 *
Pilot valve plunger
Stainless steel
BS 970 321 S 31
11
Pilot valve seat with integral seal
Stainless steel + PTFE
BS 970 431 S 29
12 * 13 * 14 *
Pilot valve ball
Stainless steel
AISI 420
Pilot valve spring
Stainless steel
BS 2057 302 S 26
Pilot valve clip
Stainless steel
BS EN 10088-2 1995 1.4310
15
Pilot filter cap gasket
Stainless steel
BS 1449 316 S 11
16
Pilot filter cap
Stainless steel
BS 970 431 S 29
TI-P470-01 CTLS Issue 13
Page 4 of 16
DP27, DP27E, DP27G, DP27GY, DP27R & DP27Y Pilot Operated Pressure Reducing Valves with SG Iron Bodies
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