J-T Valve
J-T Valve
(OP)
Hi
In upstream and downtream of 2" JT valves designed with velocities 148ft/sec and 98ft/sec respectively.i.e velocities achieve sub-sonic during full open and sonic while trottling. I think this velocities exceed the vapor velocity limit(acceptable). Anybody can comments??
In upstream and downtream of 2" JT valves designed with velocities 148ft/sec and 98ft/sec respectively.i.e velocities achieve sub-sonic during full open and sonic while trottling. I think this velocities exceed the vapor velocity limit(acceptable). Anybody can comments??





RE: J-T Valve
RE: J-T Valve
Any article? for reference. Manufacture recomend the size but after installation i suspect the size not correct. Manufacture say its okey!.
RE: J-T Valve
The overiding factors to be concerned about in this case are:
1) Noise level
2) Vibration
3) Erosion
The gas velocity will be an issue if we are talking of line velocity (max. 20m/s or 66ft/s). But in the case of pressure drop across a valve, the factors mentioned above shall be the issue to be concerned with.
RE: J-T Valve
RE: J-T Valve
API14E states that velocities above 60 ft/sec should only be considered following through investigation (noise and other subject).
Best regards
Morten