Giant Stainless Steel Pressure Actuated Unloader with Red Spring - 2400 Psi
This is a pressure-actuated unloader that is designed for any pump that fits within the flow and pressure range of the unloader. The unloader regulates the flow in the system and maintains system pressure via an adjustable nut that controls the amount of tension on a pressure spring. When no flow is going out the outlet port, all flow is diverted to the bypass port at virtually no pressure. The unloader is capable of handling one or more shut-off guns and should be run with no bypass (if the full flow from the pump is going through the unloader). It actuates at around 10% above the system pressure.
~When discharge flow is stopped at the spray gun or other controlling valve, the unloader holds the pressure in the discharge line, but unloads the pressure on the pump by dumping all the water back to the inlet side of the pump or back to the source.
~Not for use with weep spray guns.
~Inlet & Discharge Ports: 1/2" FPT
~By-Pass Port: 1/2" F-BSP
~Flow Rate: 2.2 to 13 GPM
~Pressure Range: 375 to 2400 PSI (Red Spring)
~Max Temperature: 160°F
~Weight: 2.8 LBS
Mfr Catalog No. 22912A