Regulatory valves of pressure with automatic or controlled unloading with electrova valve for circuits with accumulator Le RQRM3-P, RQMM5-P, RQM7-P, RQA5M-P and the RQA7M-P, are automatic unloading valves or controlled by solenoid valves, for plate assembly. Specific valves for circuits with accumulator are to optimize the energy consumption of the pump. They act by downloading the entire scope of the pump in the tank upon reaching the pressure value set through the adjustment screw, until the pressure in the work line B descends at a percentage (63% or 75%, depending on the version) of the set pressure or when the pilot solenoid valve is descended. After that, the flow from the pump to the circuit is restored through the incorporated non -return valve until the calibration pressure is achieved or a new dialogue of the electroval valve. The RQAM5-P and the RQAM7-P are provided with non-return valve. While the RQRM3-P, RQRM5-P and the RQRM7-P are equipped with an X attack to pilot the non-remote return valve. The valve is available with continuous or alternating current power supply. They are available in three pressure adjustment fields up to 280 bar, with hexagonal head adjustment screw. The SICBLL type adjustment knob is available on request.