UK Product Handbook 2026 - Volume 1

Control systems Pressure reducing/surplussing valves

4

Capacities

Size

½"

¾"

1"

Full lift capacity for safety valve sizing purposes are shown opposite:

Kvs

2.1

3.6

4.3

For conversion: Cv (UK) = Kv x 0.963 Cv (US) = Kv x 1.156

Dimensions / weight (approximate) in mm (inches) and kg (lb)

E Withdrawal distance

D

4.6 33

C

F Withdrawal distance

B

A

Size

A

B

C

D

E

F

Weight

83 (3.3) 96 (3.8) 108 (4.3)

2.0 (4.4) 2.1 (4.6) 2.4 (5.3)

½"

32 (1.3)

62 (2.4)

130 (5.1)

25 (0.98)

40 (1.6)

¾"

1"

Safety information, installation and maintenance For full details see the Installation and Maintenance Instructions (IM-P001-08) supplied with the product. Installation note: The valve should be installed in a horizontal pipeline with the direction of flow as indicated by the arrow on the valve body. How to order Example: 1 off Spirax Sarco ½" LRV2S pressure reducing valve with gunmetal body, screwed BSP connections, stainless steel bellows and fitted with an orange spring for downstream pressure control of 3.5 to 8.6 bar g (50.8 to 125 psi g). Please note that the only certification that is available for this product is a manufacturer's Typical Test Report. Note: All certification / inspection requirements must be stated at the time of order placement.

TI-P001-07 CTLS Issue 6

Page 5 of 6

LRV2B and LRV2S Gunmetal Pressure Reducing Valves

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