CAT Pumps Unloader Brass, Model 7500S, Min. Flow 0.5 GPM-Max. Flow 6 GPM, Min Pressure 100 PSI-Max. Pressure 2000 PSI


Model: 7500S

This Pressure Regulating Unloader is designed for single gun or pump operation. This unloader maintains set system pressure and goes into by-pass with the release of the trigger or an obstruction downstream. The pressure sensitive feature permits a wide range of flows and quickly resumes full pressure when the gun is opened or the obstruction cleared. It is recommended for intermittent cleaning applications. It is NOT recommended for weep systems. 5-10% by-pass is necessary for optimum performance.


• Maintains full system pressure while running in by-pass without full load on pump.
• Offers pump protection against pressure fluctuations and system changes.
• Minimum pressure fluctuations with alternating use of multiple guns.
• Adjusting cap permits easy adjustments of pressure.


Technical Specifications
Max Flow 6 gpm / 22.7 lpm
Min Flow 0.5 gpm / 1.9 lpm
Max Pressure 2000 psi
Inlet Port Size 3/8″ NPT(M)
Discharge Port Size 3/8″ NPT(M)
Accessory Type Unloaders
Material Brass
By-Pass Port 3/8″ NPT(F)


CAT Unloader Model 7500S Data Sheet


Cat Pumps Limited Warranty