UK Product Handbook 2026 - Volume 1

Control systems Self-acting controls

4

Spare parts The spare parts available are shown in solid outline. Parts drawn in a grey line are not supplied as spares. Available spares

KA31 and KA33 Valve seat assembly

A, D, E, L

E, L

Set of all gaskets

S

Set of bonnet studs and nuts (set of 4)

KB31 and KB33 Valve seat assembly (excluding bellows and stem assembly)

E

A, B, C, D, E , L, U, G

G, L, N, H

Bellows and stem assembly

D

B, C, E, L, U, G

Set of all gaskets

KA31 and KA33

KB31 and KB33

S

Set of bonnet studs and nuts (set of 4)

C U A B

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 - Valve seat assembly for a Spirax Sarco DN32 KB31 self- acting control valve.

4.5 31

A

H

G N

L

S

S

TI-P078-02 CTLS Issue 14

Page 5 of 5

KA31, KA33, KB31 and KB33 Cast Iron Self-acting Control Valves

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