Control systems Pressure reducing/surplussing valves
4
Compressed air capacities chart
How to use the chart Capacities are given in cubic decimetres of free air per second (dm 3 /s). The use of the capacity chart can be best explained by an example. Required, a valve to pass 100 dm 3 /s of free air reducing from 12 bar to 8 bar (174 psi to 116 psi). Find the point at which the curved 12 bar (174 psi) upstream pressure line crosses the horizontal 8 bar (116 psi) downstream pressure line. A perpendicular dropped from this point shows that whereas a DN15LC valve will only pass 57 dm 3 /s and is therefore not large enough, a DN15 (½") valve will pass approximately 120 dm 3 /s under these conditions and is the correct valve size to choose. Safety information, installation and maintenance For full details see the Installation and Maintenance Instructions (IM-P006-07) 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 DN32 DP163 pilot operated pressure reducing valve fitted with a red pressure adjustment spring and having flanged EN 1092 PN25 connections.
4.6 115
TI-P107-01 CTLS Issue 13
Page 11 of 14
DP163, DP163G and DP163Y Pilot Operated Pressure Reducing Valve with Stainless Steel Bodies
Powered by FlippingBook