Excavator hydraulic pump proportional solenoid valve R900578535 24V

    What is the performance of the solenoid valve broken, in fact, very simple, no professional detection tools can also judge the solenoid valve is broken, if you use the solenoid valve can not work properly and do not know whether it is good or bad, generally can take three simple steps, one listen, two look, three tests, the above three steps can judge most of the problems, The following by our Taiming technical staff to share with you the electromagnetic valve is broken what is the simple judgment method.

Electro-hydraulic proportional multiway valve load sensing and pressure compensation skills
Save energy, reduce oil and improve control accuracy, but also make synchronous action several actuator movement do not interfere with each other, now more advanced construction machinery are using load sensing and pressure compensation skills. Load sensing and pressure compensation is a very similar point of view, both are the use of load changes caused by pressure changes to adjust the pump or valve pressure and flow to meet the needs of the system. Load sensing for the quantitative pump system is to lead the load pressure sensing oil path to the long-distance pressure regulating relief valve, when the load is small, the relief valve setting pressure is also small; The load is large, the setting pressure is also large, but there is always a certain overflow loss. Variable pump system is the load sensing oil circuit is introduced into the pump variable mechanism, so that the output pressure of the pump increases with the load pressure (always a small fixed pressure difference), so that the output flow of the pump is commensurate with the actual flow of the system, no overflow loss, and energy saving is realized.
Pressure compensation is a kind of guarantee measure to improve valve control performance. The load pressure after the valve port is introduced into the pressure compensation valve, and the pressure compensation valve adjusts the pressure in front of the valve port so that the pressure difference between the front and back of the valve port is constant, so that the flow rate of the throttle flow regulation characteristic through the valve port is only related to the opening of the valve port, and is not affected by the load pressure.