Control valves

Pressure reducing/surplussing valves

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

DRV7

DRV7G

Types 1 to 5

Types 1N to 5N

Stainless steel seated

Nitrile soft seated

EPDM diaphragm

Nitrile diaphragm

W

H

N

F

L

G

M

I

E

4.6.34

Available spares

Coupling

Diaphragm set - Diaphragm and sealing washer.

Needle bearing

A

B, C

D

E, F

I

Sealing bellows set

Sealing bellows assembly, and sealing bellows gasket.

Control spring(s)

Seat/head set DN25 to DN50 (1 "to 2")

J, K, L, W, H, G

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

gasket.

Head set DN65 to DN100

L, W, H, G, M

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

bellows gasket.

Balancing bellows set DN25 to DN50

N, M, G, H, W, F

Balancing bellows assembly, balancing bellows gasket,

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

Balancing bellows set DN65 to DN100

N, M, G, W, H

Balancing bellows assembly, balancing bellows gasket,

bonnet gasket, self-locking nut and head seal.

Gasket set DN25 to DN50 (1 "to 2")

F, G, K, M

Sealing bellows gasket, bonnet gasket, seat gasket and

balancing bellows gasket.

F, G, M

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 DRV7B1

pressure reducing valve.

Gasket set DN65 to DN100

Sealing bellows gasket, bonnet gasket and

balancing bellows gasket.

D

B

C

A

DN65 to DN100

How to order spares

J

L

W

K

H

M

G

N

I

F

D

B

TI-P204-01 CH Issue 14

DRV7 and DRV7G SG Iron Pressure Reducing Valves

Page 5 of 6

C

How to fit spares

E

DN25 to DN50

A

Full fitting instructions are given in the Installation and Maintenance

Instructions supplied with the spare(s).