• Surge Anticipating & Pressure Relief
    – SRV consists of low and high pilot valve, the low pilot valve anticipate surge (water hammer), the high pilot valve relieve the high pressure in piping system.
  • Accurate and Precise Pressure Control
    – Main valve of pressure control is provided by accurate and precise pressure of low & high pilot valve.
  • Adjustable Opening and Closing Times
    – Open and close time of SRV depends on field site.
    – Quick open time and slight close time are adjustable.


Model SRVP consists of a main valve, low and high pilot valve, and accessory, completely assembled and tested as a unit and ready for field installation. SRV is install in the bypass line pipe to protect the piping system from the surge(Water hammer) by sudden flow change and pump sudden stop. Main Valve is open when low pilot valve anticipates the negative pressure in piping system to prevent the pipe pressure rise, and when high pilot valve detects the exceed pressure in piping system to discharge pressure. Main Valve is closed tightly when normal operation is in state.