The unloading valve with adjustable hysteresis UZOP…NHY… type is used in the hydraulic systems with pump and hydraulic accumulator (or the second pump). The task of the valve is to unload the pump flow (to drain line) when the pressure in the accumulator reaches the unloading value set at the unloading valve. When the pressure in the accumulator drops to the loading pressure value set at the unloading valve, the valve reconnects the pump with accumulator feeding line. The valve working hysteresis can be set in the range from 17% to 50%.
|Size||Flow (l/min)||Pressure (MPa)||Catalogue card|
|10, 20, 30||up to 400||up to 35||WK 428 270|