PA VB9 Panel Mount Unloader Valve 8gpm 3650psi - Optional Pressure Switch


PA VB-9 unloader valve with optional pressure switch.

3650psi Maximum Rated Pressure

Models Available:

  • 8.712-736.0 - VB9
  • 8.715-462.0 - VB9 + Switch
  • 8.715-489.0 - VB9 + Switch & Stainless Check Valve

VB9 unloader can be panel mounted and comes with adjustment handle.

  • 8gpm rated flow
  • 3/8" Female Inlet / Outlet / Bypass
  • 90°C / 195°F max temperature


Unloader valves are one of the most important safety devices on a pressure washer system. Failure to install and set the unloader properly could result in a very dangerous situation causing severe damage to the pump and possibly the operator.

Professional installation is required.