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Pressure Regulating Valve (70000 Series) Types C & D
Pressure Regulating Valves (70000 Series)
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PSM Series70000

Pressure Regulating Valve (70000 Series) Types C & D

Pressure regulating valves including pressure sustaining, pressure reducing and relief types for safe, efficient operation

General Data

Size
1/4 to 2 inch
Body Material
Gray cast iron, LCC or WCC steel, stainless steel CF8M, stainless steel CF3M, Monel or Hastelloy
End Connection
Flanged, NPT, SW (socket weld), butt weld
Design Standard
Compliant with API 614

Catalogue Cv curve & tableEngineering estimate

Cv vs opening percentage — PSM reference catalogue data

Rated Cv 1.5NPS 0.25"Characteristic Equal %Cv ratio at 50% 0.242Rangeability 40Confidence very lowBack-test error ±62%
1120255075100% opening
Opening %Cv% of rated
1002%
200.16%
300.19%
400.216%
500.424%
600.637%
700.856%
801.175%
901.489%
1001.5100%

This table is not manufacturer measured data: Cv comes from the scaling law fitted to the measured series (back-test error ±62%, confidence very low). Confirm with PSM engineering before ordering.

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