Wilhelm - Control Valve
LEADING VALVE REFURBISHMENT AND MODIFICATION SPECIALIST
Control Valve
- Angle Valve
- Globe Valve
- Rotary Valve
- Air Operated Valve
- Angle Seat Piston Valve
- Diaphragm Valve
- Sliding Cylinder Valve
- Actuator : Shell test for possible leakage and internal diaphragm or piston “O” ring leakage test
- 8 points function test and span travel response
- Valve Shell and Seat Integrity Test
- Test Medium: Compressed Air / Nitrogen (N2) / Hydrostatic
- Installation of accessories and tubing / fittings
- Testing and setting of accessories such as positioner etc
Complete Refurbishment:
- Servicing of actuator including changing of parts
(Diaphragm or Piston Seal etc) - The valve seat and plug lapped to meet the class leakage rate allowed. Replacement of parts such as gland packing
- Calibration and setting of travel span
- Replacement of fitting and tubing
- Painting of valve body
- Check and servicing of actuator
- Leakage test and functional stroke test
- Valve seat and plug lapped to meet the class leakage allowed
- Replacement of gland packing
- Calibration and setting of travel span


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