Pneumatic pneumatic hydraulic control one-way valve working principle of pneumatic valve

the working principle of pneumatic valve control hydraulic one-way: hydraulic control one-way pneumatic valve depend on control fluid pressure, can make the one-way pneumatic valve pneumatic valve reverse circulation. The pneumatic valve in hydraulic support coal mining machinery equipment occupies the important position. Hydraulic control one-way pneumatic valve is different from ordinary one-way pneumatic valve is much more a control oil K, when control of oil did not turn on the pressure oil, hydraulic control one-way pneumatic valve work like ordinary one-way pneumatic valve, pressure oil from the oil inlet flow to the oil outlet only, can't reverse flow. When the control oil pressure of control input, plunger piston under the action of pressure oil to the right, one-way pneumatic valve, with his top material make the oil in and out of the mouth. If the oil outlet is greater than the oil inlet can make the oil flow. ( Keep the pressure. Slide pneumatic valve type reversing pneumatic valve has clearance leakage phenomenon, pressure maintaining only a short time. When pressure requirements, can be in oil and add a hydraulic control one-way pneumatic valve, pneumatic valve of cones to shut down the rigor, make the oil pressure for a long time. ( 'Support' of the hydraulic cylinder. In vertical hydraulic cylinder, the pneumatic valve and tube leaking, under the gravity of the piston and piston rod, may cause the piston and piston rod. The hydraulic control one-way pneumatic valve in the hydraulic cylinder oil of inferior vena, can prevent the hydraulic cylinder piston and slider part. ( The hydraulic cylinder lock. When reversing pneumatic valve in the median, two hydraulic control one-way pneumatic valve closed, two cavity can be tightly closed hydraulic cylinder oil, when the piston can't move due to external force. ( Large flow discharge of oil. Two hydraulic cylinder cavity area of effective work vary widely. When the piston return, hydraulic cylinder cavity oil discharge quantity increases sharply, right at this time if the use of small flow slide pneumatic valve, will produce the throttling effect, limiting the backward speed of piston; If adding hydraulic control one-way pneumatic valve, the hydraulic cylinder piston back when the control pressure oil hydraulic control one-way pneumatic valve to open, can the right cavity oil discharge smoothly. ( For oil and gas charging valve. Vertical hydraulic cylinder of the piston in the process of high speed dropped, because of the action of high pressure oil and self-respect, causing decreased rapidly, the suction empty and negative pressure, must add oil compensating device. Hydraulic control one-way pneumatic valve used as oil and gas dynamic filling valve, to complete the function of fill oil. The above control hydraulic one-way pneumatic valve working principle is relatively simple. Along with the progressive development of the society, science and technology we are able to access to the high-tech products will be more and more, in our experience and use at the same time, if can master the basic principle of the equipment, usually for maintenance is also useful when using.
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