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Common butterfly valve fault elimination methods

Common butterfly valve fault elimination methods

Common butterfly valve fault elimination methods Cause of failure: leakage of the sealing surface, and sundries are included in the butterfly plate and sealing ring of the butterfly valve. Elimination method: eliminate impurities and clean the inner cavity of the valve. Cause of failure: The butterfly plate and seal closing position of the butterfly valve are not in the right place. Elimination method: Adjust the limit screws of the actuator such as worm gear or electric actuator to achieve the correct closing position of the valve. Cause of failure: The outlet is equipped with flange bolts that are stressed or not compressed. Elimination method: check the flange plane and bolt pressing force, which should be evenly compressed. Cause of failure: The direction of the pressure test is not as required. Elimination method: Install in the direction of the arrow. Cause of failure: Failure of sealing gaskets on both sides. Elimination method: Replace the sealing gasket. Cause of failure: uneven or uncompressed pipe flange compression. Elimination method: compress the flange bolt or re-tighten the bolt with uniform force.

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Precautions for valve maintenance

Precautions for valve maintenance

1. Before valve maintenance, the water supply or gas supply of the pipeline must be cut off, and the water or gas accumulated in the pipeline must be emptied to ensure safety. 2. In the process of maintenance, special attention should be paid to understanding the different maintenance methods of various valves, so as to adopt the correct maintenance methods. 3. In the maintenance work, it is necessary to strictly abide by the safety operation procedures, use professional tools and equipment, and take protective measures. 4. During the maintenance of the valve, it is necessary to pay attention to ensure the environmental hygiene of the place where the valve is located to avoid pollution to the environment. The valve is a key component in the pipeline system, and the maintenance of the valve can effectively extend the service life of the valve and ensure the normal operation of the pipeline system. Correct valve maintenance methods and safe operation procedures are important guarantees for valve maintenance, and if there is any problem, you need to seek professional help in time.

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What are the reasons that affect the service life of butterfly valves

What are the reasons that affect the service life of butterfly valves

Butterfly valves are a common type of valve in industrial production piping systems. However, the service life of a butterfly valve is often affected by a variety of factors. The following butterfly valve manufacturers summarize the possible reasons that affect the service life of butterfly valves: 1. Improper installation and maintenance of equipment: Butterfly valve manufacturers believe that improper installation or maintenance of butterfly valves often leads to the destruction of valve seats. For example, if the internal structure of the valve body and piping are not cleaned prior to installation, residues in the piping may cause damage to the seat of the butterfly valve. Therefore, it is recommended that the operator perform regular maintenance and maintenance on the butterfly valve to ensure that the valve is in normal condition and avoid damage to the sealing ring of the valve seat. 2. The quality of the equipment: when the butterfly valve manufacturer does not pay attention to the details when talking about the processing quality of the seat of the butterfly valve, it will lead to cracking, porosity and other problems on the seat sealing ring. In addition, the operator selects the wrong butterfly valve model, which can cause the valve to mismatch the load standard, resulting in damage to the seat seal. Therefore, choosing the right butterfly valve model is important to extend the life of the equipment. 3. Pay attention to the flushing of the protruding face: Although the butterfly valve is stable, the flushing of the media may affect the life cycle of the valve seat. Due to the washout of the medium, the seat seal may be located inside the pipeline. Continuous flushing will cause corrosion of the seat seals and damage to the protruding surfaces of the seats. In addition, the butterfly plate rubs against the seat every time it opens and closes, which can adversely affect the protruding surface over time. In summary, maintaining the long-term stable operation of the equipment will be a key factor in maintaining the service life of the butterfly valve. Operators should follow proper installation and maintenance procedures and select the correct type of butterfly valve to ensure that all parts of the equipment are functioning properly and that the service life of the equipment is maximized.

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What maintenance is required for the valve

What maintenance is required for the valve

Valve is an important equipment in the pipeline system, and its safety and reliability play a very important role in the normal operation of the entire pipeline system. Therefore, regular maintenance of the valve is essential. 1. Clean the valve After a period of use, the inner wall of the valve is prone to accumulate dirt and sediment, which will not only affect the service life of the valve, but also affect its normal operation. Therefore, it is necessary to clean the valve regularly to ensure the smooth and effective operation of the valve, and also to prolong the service life of the valve. 2. Lubricate the valve The sealing surface of the valve will have a lot of friction during operation, so the valve needs to be lubricated regularly to reduce friction and ensure its normal operation. Pay attention to the selection and use of lubricants, different types of valves need to use different lubricants. 3. Check the valve Regularly check the sealing performance, use status and operation of the valve, find and solve problems in time to avoid affecting the normal use of the valve.

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Let's talk about these 3 connection methods of pneumatic ceramic double gate valves

Let's talk about these 3 connection methods of pneumatic ceramic double gate valves

Let's take a look at several connection methods of ceramic double gate valves, the connection methods between ceramic double gate valves are various, and different connection methods are also used in different occasions, with practical connection methods to reflect the value of ceramic double gate valves, different connections in the connection methods also have different skills, let's talk about how to connect the pneumatic ceramic double gate valves? 1. Threaded connection: The ball valve with threaded connection is mainly a ball valve with a nominal passage of less than 50mm. If the bore size is too large, it is difficult to install and seal the connection. Threaded connections are usually machined into tapered or straight pipe threads at the inlet and outlet ends of ball valves, which allow them to be connected to tapered threaded fittings or pipes. Because of the potential for large leaking channels in such connections, these channels can be plugged with sealants, sealing tape, or packing. If the material of the valve body can be welded, but the coefficient of expansion varies greatly, or the operating temperature varies widely, the threaded connection must be honeysealed. To facilitate the installation and removal of threaded ball valves, fittings are available at the appropriate location in the piping system. Ball valves with a nominal diameter of less than 50 mm can use a pipe sleeve as a pipe joint, and the thread of the pipe sleeve joint connects the two parts of the connection together. 2. Flange connection: The ball valve with flange connection is more convenient to install and disassemble, but the flange connection is heavier than the ball valve with threaded connection, and the corresponding price is also high, so it is suitable for pipe connection with various diameters and pressures. When the temperature exceeds 350 degrees, the bolts, gaskets and flanges become relaxed, and the load of the bolts is significantly reduced, and the flange connection with great force may leak. 3. Welded connection: Welded ball valves with nominal diameter below 50mm usually have welded sockets to undertake the pipes at the end of the load plane. Because socket welding forms a gap between the socket and the pipeline, it is possible that the gap is corroded by some media, and the vibration of the pipeline will fatigue the connection part, so the use of socket welding is limited to a certain extent. Welded connections are suitable for a wide range of pressures and temperatures, and are more reliable than flange connections when used in more loaded conditions. However, it is difficult to remove and reinstall the ball valve with welded connections, so its use is limited to situations where it can usually operate reliably for a long time, or when the conditions of use are high and the temperature is high.

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Analysis of factors for the length of valve life

Analysis of factors for the length of valve life

First, the type of valve affects the service life Different kinds of valves have different service life. For example, ball valves and gate valves have a long service life, which can reach more than 10 years, while butterfly valves and check valves have a relatively short service life, generally about 5 years. Therefore, in the selection of different types of valves, according to the characteristics and conditions of use, the appropriate valve should be selected to prolong the service life of the valve. Second, the material of the valve affects the service life The material of the valve is also an important factor affecting the service life of the valve. Different materials of valves have different corrosion resistance and wear resistance, and the service life will also change. For example, the service life of cast steel valves is related to the carbon content and hardness of the steel, while the service life of stainless steel valves is usually longer than that of cast steel valves. Therefore, when selecting the valve material, the appropriate material type and grade should be selected according to the specific working conditions and use requirements. 3. The working medium of the valve affects the service life The service life of the valve will be affected differently in different media environments. For example, the temperature, pressure, corrosiveness of the working medium, etc., will affect the material, tightness, strength and other properties of the valve, thereby shortening the service life of the valve. Therefore, when selecting valves, the characteristics and special requirements of the medium used should be considered, and the valves with suitable materials and structures should be selected. Fourth, the use of the valve environmental impact on the service life The environment in which the valve is used is also a factor that affects the life of the valve. For example, the valve is used in some corrosive occasions, which is prone to rust and other damage, and when used in special atmospheres, such as in chemical plants, the material and performance of the valve will be higher. Therefore, when using the valve, it is necessary to pay attention to the use environment and take appropriate maintenance measures to prolong the service life of the valve. To sum up, the service life of the valve is related to many factors, such as the type of valve, the material of the valve, the working medium of the valve, the environment in which the valve is used, etc. In the actual use process, maintenance, inspection and replacement should be carried out according to the specific situation to ensure the normal operation and safe use of the valve.

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WESTV

The company's products mainly include: ceramic ball valve, ceramic butterfly valve, ceramic adjustment, ceramic gate valve, ceramic type C valve, ceramic rotary valve, ordinary metal gate valve, globe valve, ball valve, check valve, butterfly valve and other valves!

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