The Truflo BRP3 Series Back Pressure | Relief Valve has dual functions. It functions as pressure relief valve when it is installed off the branch of a tee fitting located after the pump.
It will function as a back pressure valve maintaining pressure when installed in-line down stream of the pump.
The valve is normally in a closed position however the opening pressure can be easily adjusted in the field by simply turning the spring tensioning bolt, making fine adjustments in the field is simple and quick.