7118909 OEM Unloader Valve for Pressure Washer Pumps, 4500 PSI

The 7118909 is a brass unloader valve with a pressure rating of 4500 PSI and a max temperature rating of 185°F.

This brass unloader valve features a built-in EZ Start System designed to redirect water flow into the pump's bypass when the pressure washer's trigger gun valve is closed to help prevent pump damage.

It also features a flow-efficient pump interior and a new fatigue resistant spring. The unloader's powder-finished adds a layer of corrosion resistance that resists rusting.

This unloader is designed to respond to an increase in pressure and a change in flow or for variable pressure adjustment.

Features of the 7118909 Unloader

• Has a fully integrated EZ Start System.
• The pump's dual locking nuts help reduce vibrations while in operation.
• Large-diameter pistons provide strong alignment between the pump's pistons.
• Discharge nipple sealing O-ring located at lower part of the thread to increase hydro strength and fitting strength.
• Shutter valve hex design means less contact area for smooth shifting and longer unloader life.
• Features two FNPT inlet ports and two FNPT bypass ports
• Ultra-thick inlet and discharge ports provide added durability.

Unloader Valve Specifications:

Max. Operational Temperature: 185°F

Max Flow Rate: 10.5

Max Pressure: 4500 PSI

Inlet Port: 3/8 in. FNPT

Outlet Port: 3/8 in. FNPT