Control systems Pressure reducing/surplussing valves
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 Note the spares listed are common to all sizes
Q
L
0.14 to 1.7 bar g (2.03 to 24.7 psi g) 1.40 to 4.0 bar g (20.3 to 58.0 psi g) 3.50 to 9.0 bar g (50.8 to 131 psi g)
K, Q
Grey
K, Q
Pressure adjustment spring
Green
K, Q
Orange
J
Control bellows - Stainless steel
Bellows pushrod assembly, (Sub assembly, head, 'O' rings, lower pushrod and balancing bellows)
E, C, H
B
Bottom cap
G
Strainer screen
K
F L A D
Return spring and gasket set
Spring housing (Set of 4)
J
Bolt set
Bottom cap (Set of 4)
F
4.6 27
Return spring
How to order spares Always order spares by using the description given in the column headed 'Available spares' and state the size, type and pressure range of the reducing valve. Example: 1 off Pressure adjustment spring (orange), having a downstream pressure range of 3.5 to 9.0 bar g (50.8 to 131 psi g) for a Spirax Sarco 1" BRV71 pressure reducing valve.
H
F
G
Gasket set
E
D
F
C
F
B
A
TI-P210-01 CTLS Issue 6
Page 7 of 7
BRV71 and BRV73 SG Iron Pressure Reducing Valves
Powered by FlippingBook