I am interested in a force that might not normally be considered in actuator sizing for Gave Valves. Normally considered forces are stem friction, seat friction, and hydrostatic. However, it seems there is another force that could be significant under some circumstances, e.g. a higher...
It recently came to my attention that several operating companies are opening parallel, 100% sized, relief valves to the process when the design was to leave one closed and one open to facilitate maintenance. This is apparently becoming a standard practice.
Normal sizing practice involves...
It recently came to my attention that several operating companies are opening parallel, 100% sized, relief valves to the process when the design was to leave one closed and one open to facillitate maintenance. This is apparently becoming a standard practice.
If more than one relief device is...
