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Common faults and maintenance methods of one-way valve

Common faults and maintenance methods of one-way valve

  • Categories:Industry News
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  • Time of issue:2022-08-03 08:38
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Common faults and maintenance methods of one-way valve

(Summary description)The common faults and maintenance methods of check valves were organized and released by Yangzhong Xinya Automatic Control Engineering Co., Ltd. on 2020.10.28.

  • Categories:Industry News
  • Author:
  • Origin:
  • Time of issue:2022-08-03 08:38
  • Views:0
Information

The common faults and maintenance methods of check valves were organized and released by Yangzhong Xinya Automatic Control Engineering Co., Ltd. on 2020.10.28.
In the previous article, we introduced and explained the four recommended applications of the three-valve manifold in detail. In this article, we briefly describe the common faults and maintenance methods of one-way valves. As a professional manufacturer of one-way valves and three-valve manifolds, we will do our best to organize and release all kinds of relevant knowledge and serve you wholeheartedly.
    The one-way valve is that the fluid can only flow along the water inlet, but the medium at the water outlet cannot flow back, commonly known as a one-way valve. One-way valve is also called check valve or check valve. Used in hydraulic systems to prevent reverse flow of oil flow, or used in pneumatic systems to prevent reverse flow of compressed air.

①The reversing valve of the one-way valve cannot be reversed or the reversing action is slow: it is generally caused by poor lubrication, the spring is stuck or damaged, and the sliding part is stuck by oil or impurities. In this regard, you should first check whether the lubricator works normally; whether the viscosity of the lubricating oil is appropriate. If necessary, replace the lubricating oil, clean the sliding part of the reversing valve, or replace the spring and reversing valve.

②The reversing valve of the one-way valve is prone to wear and tear of the valve core sealing ring, damage to the valve stem and valve seat after long-term use, resulting in gas leakage in the valve, slow movement of the valve or failure of normal reversing. At this time, The sealing ring, valve stem and valve seat should be replaced, or the reversing valve should be replaced.

③If the inlet and exhaust holes of the electromagnetic pilot valve are blocked by sludge and other debris, the sealing is not strict, the movable iron core is stuck, and the circuit is faulty, etc., all of which may cause the reversing valve to fail to change direction normally. Mining hole sealer manufacturer Henan Zhongqiang Mining Equipment reminds that before checking the circuit fault, you should turn the manual knob of the reversing valve a few times to see if the reversing valve can be reversed normally under the rated air pressure. commutation, the circuit is faulty. When checking, the voltage of the solenoid coil can be measured by the instrument to see if the rated voltage has been reached. If the voltage is too low, the power supply in the control circuit and the associated travel switch circuit should be further checked.

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