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Control Valve


Types of Control Valve: Angle Valve, Angle Seat Piston Valve, Globe Valve, Diaphragm Valve, Rotary Valve, Sliding Cylinder Valve and Air Operated Valve etc.

Services

  ➢ Pressure / Functional Test for New / Used Control Valves

• 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


  ➢ Accessories and Tubing

• Installation of accessories and tubing / fittings
• Testing and setting of accessories such as positioner etc


  ➢ Refurbishment of Control Valve and Actuator

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

Partial Refurbishment of Control Valve and Actuator:

• 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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