Soft-sealing gate valve it powered by compressed air, the cue drives the ball turned 90 degrees can be realized fully open - — Full close action. The seat forms: T, F, C. The supporting the use of attachment with air filtering pressure reducing valve, limit switch, solenoid valve. Which is the main purpose of air filtering pressure reducing valve, stable pressure and filter the impurities in the air and water vapor. The valve is often use certain time fault is flat. Following a brief introduction of the common faults of this valve and the corresponding maintenance method. For the soft-sealing gate valve leakage, common has the following kinds: 1. Solenoid valve on the cylinder gas leakage, may be due to the pressure reducing valve in the air pressure is too high. 2. Cylinder vent leakage, this is because the two moving parts inside the cylinder and cylinder seal ring appeared aging phenomenon. 3. The top and bottom of the cylinder gas leakage, it is because of the actuators and cylinder seal ring due to its frequent activities of the actuator without sealing effect. 4. Besides the above three kinds of circumstances, there is another kind of circumstance may also make the cylinder gas leakage, the spring in the cylinder is damaged, due to strength to not reach the designated position, it may also be caused by inadequate. The corresponding solution: 1. Replace the sealing ring of the actuator. 2. Replace the cylinder seals. 3. The pressure of the relief valve adjusting for 3 - 5 kg, or is the lower part of solenoid Industrial Valves open ventilation action a few times, sometimes may also replace the solenoid valve. 4. Replace the cylinder in the spring. When solving the problem of cylinder gas leakage must be in according to the actual situation, such as the gas valve is open, closed or gas. To open the valve of gas, the first thing we can close the valve on both ends of the hand, and then let the control of the valve is opened, the first joint of the connection piece apart, then air cut off, put off the pressure reducing valve of the gas at this time, attention will turn the actuator 90 ℃ at this moment, finally after it is important to note that will move back to the original position of the actuator.
Anyone who has seen the latest cast iron gate valve resilient seated gate valve in operation cannot help but be impressed with how far the technology has progressed over the past few years.
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