Interpump W1 Series Unloader Valves

The Interpump W1 Series Unloader Valves feature:

  • 1 600 psi Max. Pressure
  • 165° F Max. Temperature
  • 3/8" BSP-F Inlet (W10, W11)
  • 1/4" BSP-M Outlet (W10, W11)
  • 1/2" BSP-F Inlet (W10L, W11L)
  • 3/8" BSP-F Bypass Outlet
  • 1/4" Hose Barb
  • Chemical Injector & Bypass


Gun and hose remain fully pressurized while pump loads to near 0 psi. For use on single or multiple gun systems.

 Product No.  Description
 W10  2.11 - 2.85 gpm
 W10L  2.11 - 2.85 gpm
 W11L  3.17 - 4.0 gpm
 RKI098  Repair Kit
 RKI094  Injector Repair Kit

Replacement Nozzles

 10015166I  2.0 mm (W10, W10L)
 10007666I  2.2 mm (W11, W11L)


 Product No.  Application
 W10  TT9051, TT9061, TT9071, TT9091
 W10L  T521, T531, T701, T721, T731, T981, T9731, T9791
 W11L  T711, T911, T991, T9951, T9961, TT9971


For more Valves like the Interpump W1 Series Unloader Valves see: DynaBlast Pressure Wash Components - Valves

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