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What are the causes and solutions for leakage outside the manual reversing valve?

What are the causes and solutions for leakage outside the manual reversing valve?

  • Categories:Industry news
  • Author:中豪气动
  • Origin:www.whzhonghao.cn
  • Time of issue:2020-12-20
  • Views:0

(Summary description)What is the cause and treatment of the leakage of the manual reversing valve? Do you know? Today, let's get to know it together!

What are the causes and solutions for leakage outside the manual reversing valve?

(Summary description)What is the cause and treatment of the leakage of the manual reversing valve? Do you know? Today, let's get to know it together!

  • Categories:Industry news
  • Author:中豪气动
  • Origin:www.whzhonghao.cn
  • Time of issue:2020-12-20
  • Views:0
Information

What is the cause and treatment of the leakage of the manual reversing valve? Do you know? Today, let's get to know it together!

   One, external leakage;

   The main causes of common leakage faults of manual reversing valve are:

   1. The connecting screw is loose. If the screw is not tightened enough when connecting, or the machine vibrates when the machine is running, it will cause the connection screw to loosen. At this time, just use appropriate tools to tighten it.

  2. Missing seal ring or seal ring failure. The manifestations of seal failure are:

  (1) The appearance is broken;

   (2) Local flattening;

  (3) Corrosion damage;

   (4) The elasticity is deteriorated.

  The solution is to replace the new sealing ring.

Manual reversing valve

  

3. The oil pressure is too high. Excessive oil pressure can also cause leakage of the manual reversing valve. At this point, you can read the pressure from the pressure gauge to determine whether the pressure is too high. If it is too high, it indicates that the pressure is too high. Discharge method: adjust the system pressure through the pressure valve.

   4. The installation surface is not flat. Roughness of the mounting surface that does not meet the requirements will cause leakage. Elimination method: Grind the mounting surface to make the roughness meet the product requirements. Generally, the roughness value of the valve mounting surface is not more than 0.8μm.

   For the four reasons for the leakage of the manual reversing valve, the inspection sequence is: first check the pressure gauge, then check whether the end cover is loose, finally open the valve, check the sealing ring, and measure the roughness of the mounting surface. This sequence embodies the principle of going from easy to difficult, and from the outside to the inside.

   Weihai Zhonghao Pneumatic Complete Equipment Co., Ltd. is a professional manufacturer of pneumatic and hydraulic components. The main products include: eight-position shift valve, air lubricator, anti-collision valve, quick exhaust valve, air pressure reducing valve, manual reversing valve, Weihai air source treatment components and so on. Since its establishment in 2007, the company has been relying on advanced technology, reliable quality, reasonable prices, and perfect services to achieve a high reputation in many industries and win the reputation of customers. Welcome to contact us!

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