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Model 128 Excess Flow Shut-Off Valve

Model 128 Excess Flow Shut-Off Valve

The Model 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 reopen
  • Flow rate is adjustable with single screw
  • Adjustable response speed
  • Can be maintained without removal from the line
  • Factory tested and can be pre-set to requirements
Model SheetModel Sheet (metric)SpecificationsAnimationOperations Manual
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