Unloading Relief Valve

Unloading relief valves are used to operate pumps under a minimum load in accumulator or 2-pressure pump circuits etc.
Sub-plates are available. Specify sub-plate model from the table above. When sub-plates are not used, the mounting surface should have a good machined finish.
Use the high venting pressure type to reduce the shift time from unloading to onloading

Features / specifications

Note: To adjust the pressure, loosen the lock nut and turn the pressure adjustment handle slowly clockwise for higher pressures or anti-clockwise for lower pressures. After adjustments, do not forget to tighten the lock nut.
Take care not to neglect connecting the drain pipe to the tank; otherwise not only will the valve fail to operate properly but also the line pressure will rise infinitely. Extend the end of the drain pipe into fluid.
Limit the pressure drop between the valve and the accumulator in a accumulator circuit below 10% of the cut-out pressure.

Model Number

Max. Operating Pressure

Kgf/cm²

Max. Flow L/min.

Mass Kg.

BUCG-06-?-?-3080

210

125