7535 7542 Unloader Blue Spring 21 GPM 4000 PSI Cat Pump 1/4" Maximum volume: 10

Maximum volume: 10

Die-cast anodized aluminum crankshaft finish

It relies on expansion of a viscous liquid to open or close a switch

SKU: 3006

7535 7542 Unloader Blue Spring 21 GPM 4000 PSI Cat Pump 1/4" Maximum volume: 107535 7542 Unloader Blue Spring 21 GPM 4000 PSI Cat Pump Provides system pressure setting and protection for single or multiple gun, nozzle, and pump systems. Immediately returns to system pressure when gun opens. Serves also as a secondary relief valve. Compact size and easy installation. Specifications: Pressure range: 800 to 4000 psi Flow range: 1 to 21 gpm Maximum temperature: 180 f Inlet: 1 2" fpt Outlet: 1 2" fpt Bypass: 1 2" fpt Dimensions: 8.