* 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.

19

BS 3692 Gr. 8.8

BS 3692 Gr. 8

DIN1693 GGG 40.3

ASTM A351/A351M CF8M

BS EN 10270-3:2001 302 S 26

BS 2872 CZ 122

BS 3692 Gr. 8

BS 4439 Gr. 8.8

M10 x 95 mm

M12 x 95 mm

BS 2870 PB102 1980

EN JS 1025

BS 970 321 S 31

BS 970 431 S 29

AISI 420

BS 2057 302 S 26

BS EN 10088-2 1995 1.4310

BS 1449 316 S 11

BS 970 431 S 29

Materials - DP27 and DP27Y (Parts 1 to 19)

No. Part

1 Adjustment screw

2 Adjustment lock-nut

3 Spring housing

4 Top spring plate

5 Pressure adjustment spring

6 Bottom spring plate

7 Spring housing

8 Pilot diaphragms

9 Pilot valve chamber

Material

Steel

Steel

SG iron

Stainless steel

Stainless steel

Brass

* 10

11 Pilot valve seat with integral seal

* 12

* 13

* 14

Pilot valve ball

Pilot valve spring

Pilot valve clip

Pilot valve plunger

15 Pilot filter cap gasket

16 Pilot filter cap

17 Pilot filter element

18 Internal strainer

19 Body gasket

ASTM A240 TP 304

Control valves

Pressure reducing/surplussing valves

Exploded view of

item 11

*10

11

*12

*13

*14

DP27 and DP27Y

1

2

3

4

5

7

6

9

8

19

4.6.106

Securing nuts

Securing studs

Steel

Steel

DN15 to DN32

DN40 and DN50

Phosphor bronze

SG iron

Stainless steel

Stainless steel

Stainless steel

Stainless steel

Stainless steel

Stainless steel

Stainless steel

Brass

Stainless steel

Stainless steel

11

15

16

17

18

TI-P470-01 CH Issue 10

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

+ PTFE

reinforced exfoliated graphite

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