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Equalize Pressure for 18" Ball Valve
Thank you very much for your kind suggestion. For comments on increasing air pressure at the actuator, we have tried rising the pressure to 6 bar (25% increase from normally 4.8 bar), unfortunately, this could not help. For comments on valve siezed, it might be possible. However, why the...- kpnttn
- Post #6
- Forum: Valve engineering
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Equalize Pressure for 18" Ball Valve
We have found one 18” Metaltite ball valve (full-bore, fail-close), from KTM, cannot be operated (cannot command to open), even though the equalize valve was already opened and the differential pressure across the valve was already 0 bard. Please be noted that there was no fault in actuator...- kpnttn
- Thread
- Replies: 8
- Forum: Valve engineering
