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Control systems Pressure reducing/surplussing valves
Valve weight (kg) Valve size
DN15 DN20 DN25 DN32 DN40 DN50 DN65 DN80 DN100
Yellow spring
10.8
11.8
14
18.8
20.4
23.0
31.7
38.2
53.9
Weight
Blue spring
10.8
11.8
14
18.8
20.4
23.0
31.7
38.2
53.9
Red spring
11.8
12.8
15
20.2
21.8
24.4
33.5
40.0
56.5
Reduction for Screwed body
-1.7
-2.2
-2.2
-3.6
-3.9
-5.5
-
-
-
Note: To calculate the total product weight add the valve and actuator weights together.
Actuator weight (kg) Actuator type
1 or 1N
2 or 2N
3 or 3N
4 or 4N
5 or 5N
Weight
12.3
6.5
3.9
2.5
2.6
Safety information, installation and maintenance For full details see the Installation and Maintenance Instructions (IM-S12-04) supplied with the product. Installation note: Caution - To protect the actuator diaphragm on steam applications a WS4 series water seal pot must be installed in the downstream pressure signal line to the actuator. Refer to TI-S12-03 for details. The valve should be mounted vertically downwards in a horizontal pipeline with the direction of flow as indicated by the arrow on the valve body. For applications with downstream temperatures below 125 °C the valve can alternatively be mounted vertically upwards.
4.6 56
How to order Example: 1 off Spirax Sarco DN40 DRV7B3 direct acting pressure reducing valve having flanged PN40 connections. Note: Add suffix 'N' if the Nitrile rubber diaphragm is required. i.e. DRV7B3N.
TI-P204-01 CTLS Issue 15
Page 10 of 10
DRV7 and DRV7G SG Iron Pressure Reducing Valves
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