Control valves

Pressure reducing/surplussing valves

Spare parts for the DN15 and DN20 (1⁄2" and 3⁄4") valves

The spare parts available for sizes DN15 and DN20 valves are detailed below. No other parts are supplied as spares.

The listed parts are for the following valve types:

Valve assemblies

Actuator assemblies

Available spares

Coupling

Diaphragm set

Needle bearing

Sealing bellows set

Control spring(s)

Seat/head set

DRV7

DRV7G

Types 1 to 5

Types 1N to 5N

Diaphragm and sealing washer.

Sealing bellows assembly, sealing bellows gasket and bonnet gasket.

Seat, seat gasket, head, bonnet gasket and head seal.

Sealing bellows gasket, bonnet gasket and seat gasket.

Stainless steel seated

Nitrile soft seated

EPDM diaphragm

Nitrile diaphragm

A

B, C

D

E, F, G

I

J, K, L, G, H

F, G, K

Gasket set

How to order spares

Always order spares by using the description given in the column headed 'Available spares' and state the size and type of valve.

Example: 1 - Gasket set for a Spirax sarco DN15 DRV7B1 pressure reducing valve.

4.6.33

Full fitting instructions are given in the Installation and Maintenance Instructions supplied with the spare(s).

How to fit spares

TI-P204-01 CH Issue 14

DRV7 and DRV7G SG Iron Pressure Reducing Valves

Page 4 of 6

K

L

G

I

D

B

C

J

H

E

F

DN15 and DN20

A