The 9900 Unloader maintains full system pressure while running in by-pass without full load on the pump and boasts up to 120 GPM performance.This Pressure Sensitive Regulating Unloader is designed for single or multiple pump, weep or multi-nozzle systems. This unloader maintains set system pressure and goes into by-pass with the release of the trigger or an obstruction downstream. Pressure is held in the line during by-pass with full pressure when the gun is opened or the obstruction cleared and minimal pressure fluctuation with the alternating use of multiple guns. 5-10% by-pass is necessary for optimum performance.
- Flow Range: 50.0 to 120.0 GPM
- Pressure Range: 100 to 2900 PSI
- Maximum Temperature: 140° F
- Inlet Port: 1-1/4″ NPTF
- Outlet Port: 1-1/4″ NPTF
- Bypass Port: 1-1/2″ NPTF
- Approximate Weight: 13.2 lbs.