Interpump YU2121 (GP2121 General Pump) unloader valve.
2600psi Maximum Rated Pressure (yellow spring)
- 21gpm rated flow
- 1/2" FPT 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.