44
Spare parts The spare parts available are shown in solid outline. Parts drawn in a grey line are not supplied as spares. Available spares Control systems Pressure reducing/surplussing valves
18
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 8.6 bar g (50.8 to 125 psi g) Stainless steel or phosphor bronze
4, 18
Grey
Pressure adjustment spring *
4, 18
Green
4, 18
Orange
Bellows assembly * specify type
5, 6
Spring housing hex. bolts (set of 4) *
7
7 Spring housing hex. bolts
Pressure adjustment spring
6, 11, 12, 19
Valve and seat assembly
Gasket set *
6, 12
* Common to all sizes.
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 8.6 bar g 50.8 to 125 psi g for a Spirax Sarco DN15 (½") BRV2S pressure reducing valve.
4.6 6
4
5
Bellows assembly
6 6
6
19
Gasket set
Valve and seat assembly
11 12
12
Recommended tightening torques
or mm
Item Part
N m
7
Hex. bolts
M8 x 25
18 - 24
11
Valve seat
32 A/F
108 - 132
TI-P045-14 CTLS Issue 8
Page 6 of 6
BRV2S and BRV2B SG Iron Pressure Reducing Valve
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