ZK1 Flow Sensitive Unloader 10.8 GPM 3600 PSI 1/2" BSP Male Outlet HIGH PRESSURE The Bypass hose running back

The Bypass hose running back to your tank will act as a backup for your thermal relief valve mounted on the opposite side of your pump to the suction hose assembly

and reinforced on suction systems to avoid collapsing

ETB Series 53

The pump made ready / P

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ZK1 Flow Sensitive Unloader 10.8 GPM 3600 PSI 1/2" BSP Male Outlet HIGH PRESSURE The Bypass hose running backZK1 Flow Sensitive unloader 10. 8 gpm 3600 psi 1 2" BSP M out. The General Pumps newest flow sensitive or flow actuated unloader, the ZK1, is rated for a maximum volume of 10. 8 GPM and a discharge pressure of 3600 psi. This unloader also offers a compact design and can be rebuilt from the top without disturbing surrounding plumbing. The ZK1 is a soft start unloader offering gradual pressure increases, assuring safety for the operator and the pump.