Soft seal gate valve it to compressed air as the driving force, the club-driven 90-degree rotation of the ball can be fully open - fully closed action. Seat forms: T, F, C type. Its supporting the use of accessories are air filter valve, limit switch, solenoid valve. One of the main role of air filter valve is: stable pressure, filter impurities in the air and water vapor. The valve is often used for a certain time failure is leakage. The following brief introduction to the valve of the common fault and the corresponding maintenance methods. For soft seal gate valve leak, common are the following: 1. Cylinder solenoid valve leaks, may be due to the pressure in the valve over pressure. 2. The air outlet of the cylinder leaks because of the aging phenomenon of the sealing ring at the seal between the two moving parts inside the cylinder and the cylinder. 3. The upper and lower cylinder leakage, which is due to the actuator and cylinder seal ring because of the frequent activities of its implementing agencies did not achieve the sealing effect. 4. In addition to the above three cases, there is another case may also make the cylinder leakage, that is, the spring in the cylinder damage, due to the force is not in place, which may also cause the switch is not in place. Corresponding solution: 1. Replace the seal of the actuator. 2. Replace the seal at the cylinder. 3. The pressure regulator valve pressure is adjusted to 3-5 kg, or the lower part of the solenoid valve open the aeration action several times, and sometimes it is also possible to replace the solenoid valve. 4. Replace the spring in the cylinder. To solve the problem of cylinder leakage must be based on the actual situation to consider, for example, the valve is open, or off the air. For gas-open valve, we can first close the hand valve at both ends, and then let the central control to open the valve, the first connection at the connecting piece open, and then the gas source cut off, this time the gas at the relief valve Let go, pay attention to when the executing agency will turn 90 ℃, after the last change must pay attention to the implementing agency moved back to its original position.
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