Interpump W31 Unloader Valve

Interpump W31 Unloader Valve allows the gun and hose to remain fully pressurized while the pump loads to near zero psi. Excellent for use on single or multiple gun systems.

Interpump W31 Unloader Valve Features:

• 3600 psi Max.Pressure
• 2.90 - 4.0 gpm Max.Flow
• 200°F Max. Temperature
• 1/2" BSP-F Inlet
• 3/8" BSP-M Outlet
• 1/4" hose barb
• chemical injector/bypass
• Suggested unloader for 44, 47, 49, 50, 51, 60 and 63 series IP pumps
• Alternative to W21 & W21L Unloader valve