ATOS阿托斯溢流阀工作原理及分类^

Atos digital servo proportional valve, high reliability, can be comparable to the high quality servo valve, it is the embodiment of the tip of the proportional technology, valve core and valve sleeve cover, precision can be closed loop feedback, safety, high response, digital electronic amplifier factory default, digital control flow/pressure/location, function parameters can be set by the software, the vibration and shock seismic options, special type of optional explosion-proof & stainless steel. ATOS proportional valve through the electronic reference signal by adjusting the parameters of the hydraulic pressure or power. ATOS, the basic principle of the proportional valve, the corresponding reference signal corresponding electromagnet suction, spring reset electromagnet suction effect on valve core, drives the valve core movement, so as to realize the requirements of the hydraulic parameters adjustment. Atos DLHZO type valve for high performance servo proportional valve, straight acting, valve structure, with an LVDT position sensor, according to the input signal for the direction of the control and pressure compensation of flow control valve set of structure, straight acting, with position sensor, IS4401 standard, 6 sizes and size 10.

ATOS ATOS work principle and classification of overflow valve, constant pressure overflow effect: in quantitative pump throttle control system, the quantitative pump provides a constant flow rate. When the system pressure, can reduce traffic demand. The overflow valve open, make excess flow back to the fuel tank, guarantee the overflow valve inlet pressure, the pump outlet pressure constant (valve mouth often fluctuates according to pressure open). Safety protection: system to work normally, the valve closed. Only load in excess of the prescribed limit, the system pressure exceeds the setting pressure) open the overflow, overload protection, no longer increases the system pressure (usually make the relief valve setting pressure is higher than the system maximum working pressure 10% ~ 20%). For unloading valve, a remote pressure regulating valve, high and low pressure multi-stage control valve, sequence valve, used to produce back pressure (string on the back to the oil).

ATOS cone valve type straight moving type relief valves, the left end of the cone valve 2 has a bias current tray 1 hold pressure spring 5, cone valve right side has a damping piston 3 (damping piston, on the one hand, the damping effect at the time of the cone valve open or closed, to improve the stability of the cone valve work; on the other hand to ensure that after the cone valve opens not tilt). Pressure oil imports for P (pressure) can thus piston radial clearance into the bottom of the piston, form A to the left of the liquid pressure F = P a. (A is at the bottom of the piston area). When role in fluid pressure is greater than the spring force F, at the bottom of the cone valve to open the mouth, the oil of cone valve mouth by return back to spill tank. As long as there is oil flowing through the valve to open the mouth, the overflow valve, relief valve inlet pressure is constant. By regulating lever 4 to change the prestressing force of regulating spring 5 Ft, can adjust the relief pressure.