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Control systems Pressure reducing/surplussing valves
Spare parts The spare parts available are shown in heavy outline. Parts drawn in a grey line are not supplied as spares. Available spares * Pressure adjustment spring Grey 0.35 to 1.7 bar g (5.08 to 24.7 psi g)
4, 19 4, 19 4, 19
Green
1.40 to 4.0 bar g (20.3 to 58.0 psi g)
Orange
3.50 to 8.6 bar g (50.8 to 125 psi g)
5, 6, 9
* Bellows assembly specify type
Stainless steel or phosphor bronze
7
* Spring housing hex. bolts (set of 4)
6, 11, 12, 13, 14, 15, 16, 20
Valve and seat assembly
6, 12, 18
* Gasket set
16
* Strainer screen
* 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 ½" LRV2S pressure reducing valve.
19
4.6 34
7 Spring housing hex. bolts
Pressure adjustment spring
4
Bellows assembly 9
6 5 6
6
20 11 12
12
Valve and seat assembly
Gasket set
13, 14, 15
Recommended tightening torques
18
or mm
16
Item Part
N m ft lbf
7
Hex. bolts
13 A/F
M8 x 25
13 - 15 10 - 11
11
Valve seat
32 A/F
108 - 132 80 - 97
16
Bottom cap
32 A/F
65 - 75 48 - 55
TI-P001-07 CTLS Issue 6
Page 6 of 6
LRV2B and LRV2S Gunmetal Pressure Reducing Valves
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