Valve leakage
Valve leakage
(OP)
how do I calculate the maximal acceptable leak rate
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS Come Join Us!Are you an
Engineering professional? Join Eng-Tips Forums!
*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail. Posting GuidelinesJobs |
|
RE: Valve leakage
Do you mean leakage through or leakage from?
What is the service? Fluid? Temperature? Pressure?
David
RE: Valve leakage
i need eqations to solve this problem
Alma
RE: Valve leakage
I would think that how much a valve is leaking depends on the particular valve, such as the current condition of the seats. Also, you did not specify type of valve. I would think that different types of valves would leak differently as well. Hence, I don't think it is possible to calculate it.
The only way I can think of to determine how much your particular valve is leading is to meaure it.
Of course, once you do, and put it back in service, it will continue to deteriorate, and the leakage rates will again change with it.
RE: Valve leakage
/Alma
RE: Valve leakage
That depends on what your process will do with the dribble of shutoff leakage. If it will cause something to overtemp or overflow. or otherwise exceed limits, then that's too much. Steam can leak quite a lot because it condenses and the steam traps take out the condensate.
It seems that your valve is on air service. If it is a vent line or goes to a flare stack, the the leakage can be quite high. If it goes to a dead-end process, you don't want any leakage.
RE: Valve leakage
RE: Valve leakage
If I operate a plant with 1000 psi pure oxygen on one side of a valve and high temperature hydrocarbon on the other side of the valve, my requirement is zero leakage. What is your application?
RE: Valve leakage
Can you clarify what you mean?
RE: Valve leakage