Liquid System Safety Valves - Spring Operated
Calculation formula spring operated relief valves in liquid systems
Sponsored Links

The minimum discharge area of spring operated relief safety valves in liquid systems can be calculated as
A = q SG1/2 / (28.14 Kbp Kvisc dp1/2) (1)
where
A = discharge area (Square Inches)
q = relieving capacity (Gallons per Minute)
SG = Specific Gravity
Kbp = capacity correction for back pressure - 1.0 for atmospheric pressure systems
Kvisc = correction factor due to velocity - 1.0 for most water systems
dp = differential pressure - set pressure (psig) + over pressure (psig) - back pressure (psig)
Sponsored Links
Related Topics
- Pressure Ratings - Pressure ratings of pipes and tubes and their fittings - carbon steel , stainless steel, plastic, copper and more
Sponsored Links
Related Documents
- Relief Valves - Length Vent Lines - Calculate length of safety valves vent lines
- Safety Valve Standards - An survey of international safety valve standards. The most common used standards in Germany, UK, USA, France, Japan, Australia and Europe
- Safety Valves and Relief Capacity - Maximum safety valves free air relief capacity





