Control valves

Pressure reducing/surplussing valves

4.6.27

Spare parts for the DN25 to DN100 valves

The spare parts available for sizes DN25 to DN100 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

Stainless steel seated

Nitrile soft seated

EPDM diaphragm

A

B, C

D

E, F, R

I

J, K, L, W, H, G

L, W, H, G, M

N, M, G, H, W, F

N, M, G, W, H

F, G, K, M

F, G, M, R

DRV4

DRV4G

Types 1 to 5

Diaphragm and sealing washer.

Sealing bellows assembly, sealing bellows gasket, and clamp plate gasket

Coupling

Diaphragm set

Needle bearing

Sealing bellows set

Control spring(s)

Seat / head set

Head set

Balancing

bellows set

Gasket set

DN65 to DN100.

DN25 to DN50

DN65 to DN100

DN25 to DN50

DN65 to DN100

DN25 to DN50

DN65 to DN100

Seat, seat gasket, head, self-locking nut, head seal and bonnet gasket.

Head, self-locking nut, head seal, bonnet gasket and balancing bellows

gasket.

Balancing bellows assembly, balancing bellows gasket, bonnet gasket,

head seal, self-locking nut, and sealing bellows gasket.

Balancing bellows assembly, balancing bellows gasket, bonnet gasket,

self-locking nut and head seal.

Sealing bellows gasket, bonnet gasket, seat gasket and balancing

bellows gasket.

Sealing bellows gasket, bonnet gasket, balancing bellows gasket and

clamp plate gasket.

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 DN25 DRV4B1 pressure reducing valve.

How to fit spares

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

Page 8 of 10

TI-P203-01 CTLS Issue 17

DRV4 and DRV4G Cast Steel Pressure Reducing Valves