How to solve the leakage in the valve well, and how to plug the leakage of the well leakage

Here are some of the well-known brands recognized in the valve industry, which are widely recognized and have a high reputation. While rankings may vary depending on time and market conditions, the following brands are generally considered to be among the top brands in the valve industry:

The following influential first-line brands of water system valves and industrial valves can be used as a reference, but for reference only: Suzhou Neway Valve, Shanghai Guanlong Valve, Shanghai Qizhong Valve, Sanhua, Su Yan, Shentong, Su Valve, Nanfang, Jiang.

First, the word Yao. The above manufacturers are only estimates and references, and the specific situation may vary or fluctuate at any time due to changes in a series of factors such as changes in the market, the size of the competition pattern, and the stability of product quality. As an indispensable key device in industrial production and civil facilities, the quality and reputation of the valve brand directly affect the satisfaction and trust of users.

These brands are known in the valve industry for their innovative technology, high-quality products and reliability. It is important to note that the market and industry are evolving rapidly, and different rankings may vary depending on time and region. For the most up-to-date ranking information, it is recommended to refer to industry reports, professional organizations or market research data for more detailed and accurate information.

Look at the ** leak. Is it a seal leak or a packing leak in the middle If it's a packing leak. Then add filler. If the seal leaks. Then it can't be helped. Only return to the manufacturer for repair. Or get a new one

Generally, the valve gasket or packing leaks, and the gasket can be replaced or the packing can be pressed.

Methods of plugging well leakage:

1. If there is a problem of water seepage in the elevator shaft, then we need to check the leakage place clearly, see which place is leaking, and then clean up the leaking place to ensure that there is no clear water, dust and other debris around.

2. Then we can use cement mortar or some other plugging tools to plug the leakage point, and when using waterproof mortar, we need to pay attention to the bottom of the elevator shaft and 4 weeks must do a good job of leveling work, otherwise the construction will be very ugly, and it is very likely that there will be continued water seepage in the later stage.

3. But if such a situation occurs, we can also fill the water pipe in the place where the water leakage is serious, and drain all the water for 4 weeks, so that the problem of water seepage in the elevator shaft can also be well handled.

4. If there is such a problem, we can also apply waterproof paint comprehensively, and repeatedly apply waterproof paint several times, preferably more than twice, so as to achieve an impermeable and waterproof effect in the later stage.

Summary. Second, the cause of valve leakage.

1. Under normal circumstances, there are three sealing parts of the valve.

1) The contact between the opening and closing parts and the two sealing surfaces of the valve seat;

2) the matching place of packing and valve stem and stuffing box;

3) The connection between the valve body and the bonnet.

Causes and treatment methods of valve leakage.

2. Causes of valve leakage1. Under normal circumstances, there are three places in the sealing part of the valve: (1) the contact between the opening and closing parts and the two sealing surfaces of the valve seat; 2) the matching place of packing and valve stem and stuffing box; (3) The rotten field of the valve body and the valve cover of the hungry is like a connection.

Among them, the former leakage is called internal leakage, which is commonly referred to as lax closing, which will affect the ability of the valve to cut off the medium. Leaks in the latter two areas are called external leaks, i.e. the leakage of the medium from inside the valve to outside the valve. Leakage will cause material loss, pollute the environment, and cause accidents in serious cases.

The leakage of the cryogenic valve is the damage of the sealing surface of the valve, because the cryogenic valve is a soft sealing structure, it can be pressed with a wrench first.

You can tighten the packing.

If the leakage continues, the packing seal should be replaced.

Issue. Cause.

The reason is that the packing seal is aging or there are other debris.

This causes wear and tear on the valve body or stem, resulting in internal leakage.

Causes of valve leakage:1lax closures; 2.

joint surface damage; 3.The gap between the valve core and the valve stem is too large, resulting in the spool sagging or poor contact; 4.Poor sealing material, cover rubber or stuck spool.

Solution:1Improved operation, heavy orange pomace new on or off; 2.

The valve is dismantled, and the sealing surface of the valve core and seat is re-ground; 3.Adjust the gap between the spool and the stem or replace the disc; 4.Replace or stack the seal ring.

Hello <> well leakage can be coated with waterproof paint to plug the leakage Method is as follows: 1. There is a problem of water seepage in the elevator shaft, then we need to check the leakage place clearly, see which place is leaking, and then clean up the leaking place to ensure that there is no open water around, no dust and other sundries. 2. Then we can use cement mortar or some other plugging tools to plug the leakage point, and when using waterproof mortar, we need to pay attention to the bottom of the elevator shaft and 4 weeks must do a good job of leveling work, otherwise the construction will be very ugly, and it is very likely that there will be continued water seepage in the later stage. 3. In such a situation, we can also fill the water skin pipe in the place where the water leakage is serious, and drain all the water for 4 weeks, so that the problem of water seepage in the elevator shaft can also be well handled.

4. We can also apply waterproof coating in a comprehensive way, and repeatedly apply waterproof coating several times, preferably more than twice, so as to achieve an impermeable and waterproof effect in the later stage. Pro-<>

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Check whether the valve is in the fully open position or the fully closed position through the valve position observation hole or manually, and adjust it if the valve is not in the full open position or the fully closed wheel. Place the ball valve in the fully open or fully closed position (the grove ball valve is placed in the fully closed position). Determine the number of seat grease nozzles.

For valves that have been cleaned and lubricated, the valve grease is injected directly. If the valve is not cleaned, lubricated and maintained, use a manual or pneumatic grease injection gun to evenly inject the specified amount of valve cleaning liquid into each grease nozzle slowly. Hope mine can help you <>

Do you have any other questions?

Summary. When the valve is fully opened, the handwheel should be reversed a little to make the threads tighter to avoid loosening damage.

For open rod valves, remember the stem position when fully open and fully closed, and avoid hitting the upper dead center when fully open. It is also convenient to check whether it is normal when it is fully closed. If the valve shaft falls off, or if a large debris is embedded between the spool seals, the position of the valve stem will change when it is fully closed.

Causes and treatment methods of valve leakage.

When the valve is fully opened, the handwheel should be reversed a little, and the threads should be tightened tightly to avoid loosening and damage. For hail rod valves, remember the stem position when fully open and fully closed, so as to avoid hitting the upper dead center when fully open. It is easy to check whether it is normal when it is fully closed.

If the valve shaft falls off, or if a large debris is embedded between the spool seals, the position of the valve stem will change when it is fully closed.

Ask about custom messages].

Summary. Hello dear! It's a pleasure to serve you.

For the problem of internal leakage, the situation is not easy to determine, first, it may not be closed, and then close it hard, second, the valve seat seal is damaged, this must be re-grinded, for the valve core is damaged, it depends on whether it is damaged by the erosion or damaged by the medium, but both must be re-welded to the sealing surface. Internal leakage is generally caused by damage to the sealing surface of the valve seat or spool, which can grind the sealing surface of the seat or spool, but there is a special situation if it is electric or pneumatic, it is possible that the valve stroke is not set properly. Leakage depends on where the leakage, if the valve body leaks, you can only replace the valve.

If there is internal leakage, it should be a problem with the sealing surface, and the sealing surface should be treated to see the effect; In the case of external leakage, the valve is different, and the leakage location is different; If the packing leaks, tighten it or replace the packing, we can't stop the leakage under pressure many times. There are many leakage points in the globe valve, and the leakage is mostly leakage from the gland, and it should not leak if the gland is opened to supplement or replace the packing and then tighten the gland. Internal leakage is that the sealing surface on the top of the valve core is broken, but practical experience tells us that sometimes there may be a hard object stuck on the valve core, resulting in internal leakage, the specific treatment is to open and close the valve, and wash away the hard object back and forth several times.

If it is the problem of the valve itself, it is necessary to choose the right time to replace the valve.

I mean there is a leak in the pipeline behind the gas shut-off valve, what to do.

Hello dear! It's a pleasure to serve you. For the problem of internal leakage, the situation is not easy to determine, first, it may not be closed, and then it is closed with trillion buried force, second, the valve seat seal is damaged, this has to be re-grinded, for the valve core is damaged, it depends on whether it is washed out or damaged by the medium, but both must be re-welded to the sealing surface.

Internal leakage is generally caused by damage to the sealing surface of the valve seat or spool, which can grind the sealing surface of the valve seat or spool, but there is also a special situation if it is electric or pneumatic, it is possible that the valve stroke is not set well. Leakage depends on where the leakage, if the valve body leaks, you can only replace the valve. If there is internal leakage, it should be a problem with the sealing surface, and the sealing surface should be treated to see the effect; In the case of external leakage, the valve is different, and the leakage location is different; If the packing leaks, tighten it or replace the packing, we can't stop the leakage under pressure many times.

There are many leakage points in the globe valve, and the leakage is mostly leakage from the gland, and it should not leak if the gland is opened to supplement or replace the packing and then tighten the gland. Internal leakage is that the sealing surface on the top of the valve core is broken, but the actual experience tells us that sometimes the internal leakage may be a hard object stuck on the valve core, resulting in internal leakage, the specific treatment method is to open and close the valve, and wash away the hard object back and forth several times. If it is the problem of the valve itself, it is necessary to choose the right time to replace the valve.