General Pump HM Unloader Valve with EZ Start 3000psi
General / Interpump HM (ZKHM) unloader valve with easy start.
Maximum rated pressure: 3000psi
10.8 gpm max flow
165°F max temperature
3/8" female inlet / male outlet
1/4" Gauge port
1/4" (x2) bypass
Ideal for use with gas engines. The easy start eliminates back pressure when pull starting. Mount in upright position for proper operation.
For proper operation the valve must be mounted in the upright position.
Unloader valves are one of the most important safety devices on a pressure washer system. Failure to install and set the unloader properly could result in a very dangerous situation causing severe damage to the pump and possibly the operator.
Professional installation is required.
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