What is a compressor unloader?
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Similarly, what is an unloader?
The unloader diverts the flow of water from the outlet side of the pump back to the inlet side, causing water to flow in a loop back to the pump under virtually no pressure rather than to the nozzle under operating pressure. Flow may be directed back to the pump inlet or to a float tank or other type of reservoir.
Additionally, what is the purpose of a cylinder unloader? Compressor cylinder unloaders are used to 1) reduce the machine's startup load, 2) prevent an overload when there is an upset in operating conditions, and 3) control gas volumes due to fluctuations in rate requirements.
People also ask, how do you fix an unloader valve on an air compressor?
Then open the drain valve at the bottom of the tank to depressurize it. Next, remove the 1/4-in. line going to the unloader valve (Photo 1). Then use a slip-joint pliers or small pipe wrench to remove the quick-connect fitting, pressure regulator and gauge from the pressure switch.
How does an unloader valve work?
The Unloader valve is designed to respond to an increase in pressure or a change in water flow. The trigger shuts off the water flow, causing the unloader valve to re-circulate the water back to the header tank or alternatively back to the inlet side of the pump. This is sending the water into bypass.