VB130 2300psi 6.5gpm 3/8" MPT Inlet with Adjustment Knob

PA VB130 unloader valve with plastic adjustment knob.

  • 2300psi max pressure
  • 6.5gpm rated flow
  • 90°C / 195°F max temperature
  • Type: trapped pressure

Inlet: 3/8" Male NPT

Outlet: 3/8" Male NPT

Bypass: 3/8" FPT


Unloader valves are one of the most important safety devices on a pressure washer system. It is recommended that an experienced mechanic installs the unloader and sets the operating and spike pressure properly with a pressure gauge.

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.