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RE: Velan switch valve sticking

Home Forums Coking Maintenance Pumps, Valves, Rotary Joints, Cranes Valves Velan switch valve sticking RE: Velan switch valve sticking


Claus Graf

Two things come to mind:
1. You said the valve is operable by hand. The actuator/motor could be bad.
2. If the valve got switched without proper steam pressure, then the resid can get into the cavity. If this is the case it wont be long before this resid get hard inside and makes the valve inoperable.

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