Trapped Pressure Unloader Valves

Trapped Pressure Unloader Valves
  • A Trapped Pressure unloader valve opens when there is an increase in pressure, so when the trigger on the gun is released the pressure increases within the system and opens the unloader valve sending the water back to a holding tank or back to the inlet side of the pump. The water between the unloader & the nozzle is trapped at high pressure - thus a "kick-back" effect when the trigger on the gun is pulled open again. - To view Flow Sensitive Unloader Valves - click here
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