The utility model discloses a multi -functional superimposed hydraulic valve for hydraulic
lifting equipment, including valve block, balance valve, pressure reducing valve and
check valve, balance valve, pressure reducing valve and
check valve all install on the valve block, constitute superimposed hydraulic valve, the oil port of superimposed hydraulic valve includes T1 mouth, T2 mouth, P1 mouth, P2 mouth, A1 mouth, A2 mouth, B1 mouth and B2 mouth, T1 mouth with T2 mouth intercommunication, P1 mouth with P2 mouth intercommunication, balance valve is connected between A1 mouth and A2 mouth, and the control oil port of balance valve is linked together with B2 mouth, pressure reducing valve and
check valve are connected between B1 mouth and B2 mouth, and the oil channel intercommunication between the oil outlet of pressure reducing valve and T1 mouth and T2 mouth, the utility model discloses the oil flow and pressure of automatic regulation through pressure reducing valve and balance valve in the equipment descending process, can reduce the
impact that the
dead weight of equipment causes to hydraulic
system, guarantees the smooth operation of equipment, prolongs the service life of equipment.