Excess Flow Shut-Off Valve

The excess flow shut-off valve shall close when the flow rate set point is exceeded. Manual reset shall be required to re-open the valve. The OCV 128 can be employed anywhere excessive flow rates must be positively prevented. It is particularly useful as a protective device against downstream line rupture.

  • Valve trips closed when predetermined flow rate is detected
  • Built-in orifice plate for sensing flow rate
  • Valve must be manually reset to re-open
  • Flow rate is adjustable with single screw
  • Adjustable response speed
  • Can be maintained without removal from the line
  • Factory tested and can be preset to your requirements