Which is the best fixed electric ball valve, which is better floating ball valve or fixed ball valve

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.

Multi-instrument valve] fixed electric ball valve, is a new generation of high-performance ball valve, suitable for long-distance pipelines and general industrial pipelines, its strength, safety, harsh environmental resistance and other special considerations in the design, suitable for a variety of corrosive and non-corrosive media. Compared with the floating ball valve, when working, the force generated by the fluid pressure in front of the valve on the ball is all transmitted to the bearing, and the ball will not move to the valve seat, so the valve seat will not bear excessive pressure, so the fixed ball valve has small torque, small seat deformation, stable sealing performance and long service life, and is suitable for high pressure and large diameter occasions.

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Go to some large valve comprehensive portals** to find the answer.

Each has its own characteristics, there is no absolute good or bad, generally the caliber is greater than DN250 to choose a fixed ball.

Taking the American Vedun Vton ball valve as an example, there are mainly differences in appearance, working principle and functional use.

1. Appearance. 1. It is easy to distinguish between floating ball valve and fixed ball valve in appearance, if the valve body has a lower fixed shaft, it must be a fixed ball valve.

2. If there is a seat grease injection valve on the ball valve body, it is basically a fixed ball valve. But the reverse is not true, it is not correct to have a floating ball valve without a seated grease valve, because small size such as a 2" 150lb fixed ball valve usually does not have a seated grease valve.

Second, the working principle.

1. The ball of the floating ball valve only has the upper valve stem, and the ball can be slightly displaced, so it is called a floating ball valve. There is also a fixed shaft at the bottom of the ball of the fixed ball valve, which fixes the position of the ball, so it cannot be displaced, so it is called a fixed ball valve.

2. The ball of the floating ball valve is displaced due to the pressure of the medium, and it is tightly attached to the valve seat to achieve sealing, and it is necessary to consider whether the valve seat material can withstand the working pressure. The ball of the fixed ball valve is fixed, and the valve seat is driven to move by the medium pressure, and it is tightly sealed on the ball.

3. Functions and Use.

1. The floating ball valve is suitable for medium and low pressure, and the diameter is small; Fixed ball valves can withstand up to 2500lb and can be up to 60 inches in size. For example, the large-diameter and high-pressure ball valve of Weidun VTON is a fixed ball valve.

2. The fixed ball valve can realize the function of double resistance and double row, while the floating ball valve is mostly one-way sealed. When the pressure in the cavity of the valve body is greater than the tightening force of the seat spring, the valve seat will be pushed open, and the pressure in the cavity will be released, and the packaging is safe.

3. Fixed ball valves usually have a longer life than floating ball valves. According to user feedback, the Vton fixed ball valve has been used for 10 years and there is no problem.

4. The torque of the fixed ball valve is smaller than that of the floating ball valve, so the operation is more labor-saving.

5. Fixed ball valves above 4 inches are equipped with seat grease valves, and floating ball valves are not.

6. The sealing performance of the fixed ball valve is more reliable: the PTFE single material sealing ring is embedded in the stainless steel valve seat, and the tail end of the metal valve seat is equipped with a spring to ensure sufficient preload of the sealing ring.

7. The American Vedun vton friendly reminder that the cost of ball valve fixed balls of the same specification is generally higher than that of floating balls.

Only one side of the ball body of the floating ball valve is connected to the actuator, and the rest is smooth, and the ball of the floating ball valve can be moved in the valve cavity, or up and down, or left and right. For example, orbit's orbital ball valve, the general floating ball valve has good protection for seals and balls, which can effectively reduce the friction between the balls and other parts during rotation, and are durable.

The ball of the fixed ball valve is connected with the actuator on one side, and the valve seat at the bottom on the other side, which can only rotate 90°, and the ball cannot be moved.

We can't just say which one is better, we can only see which one is better for your working conditions. If it is a long-distance pipeline, such as the West-East Gas Pipeline, it is a fixed ball valve; If the diameter is very small and the branch line is used, a floating ball valve can be used.

Generally speaking, the same structural material, the fixed type is more expensive, and the floating type is generally used for small caliber, medium and low pressure; The stationary type can be used for any caliber and pressure.

Specific working conditions are selected specifically. Look at your caliber temperature pressure.

Generally, the floating ball valve is used more below DN200, because the weight of the ball itself can bear it, and the ball valve above DN200 generally fixes the ball more, the greater the pressure of the floating ball valve, the smaller the possibility of leakage, and the greater the pressure of the fixed ball valve, the greater the possibility of leakage.

Different types of ball valves are used in different occasions.

Floating balls are used in low-pressure situations and fixed balls are used in high-pressure situations.

The floating ball valve has only one upper valve stem, and the valve seat is fixed, which pushes the ball to move a small amount of displacement under the medium pressure to form a seal with the valve seat; The upper and lower stems are fixed, the ball is fixed, the valve seat can be moved, and the medium pressure pushes the valve seat to move to the ball to form a seal. Floating ball valves can only be below DN200 caliber, and fixed ball valves are generally above DN50.

The ball of the floating ball valve is floating, and under the action of medium pressure, it is believed that the ball can produce a certain displacement and press on the sealing ring at the outlet end to ensure that the outlet end is sealed, which is a single-sided forced seal.

The ball body of the fixed ball valve is fixed and does not move after being pressurized, therefore, the two sealing rings should have enough preload to ensure the sealing during the design, which is a double-sided forced seal. Thrust or plain bearings are usually installed on the upper and lower stems that are integrated with the ball.

Compared with the floating ball valve, when the fixed ball valve is working, the force generated by the fluid pressure in front of the valve on the ball is all transmitted to the bearing, and the ball will not move to the valve seat, so the valve seat will not bear excessive pressure, so the fixed ball ball valve has small torque, small seat deformation, stable sealing performance and long service life, and is suitable for high pressure and large diameter occasions.

According to different working conditions, different choices need to be made. You can contact 0531-82710633, and there are special technicians to help you choose!

1. The number of solenoid coils is different.

A single electronically controlled solenoid valve has only one solenoid coil; The double electronically controlled solenoid valve has two solenoid coils.

2. Different uses.

Single electronically controlled solenoid valve is generally used for 2-position 3-way solenoid valve; Dual electronically controlled solenoid valves are generally used for 2-position 5-port solenoid valves.

Manual ball valve is a new type of valve, after more than half a century of development, manual ball valve has been used in various fields. Just like the name of the manual ball valve, it has a spherical shape and requires manual pulling of a handle or a handwheel.

Manual ball valve manufacturer: Shanghai Fanggao valve manufacturing ****.

In Shanghai's Songjiang Science and Technology Park, there is a manufacturer specializing in the research and manufacture of manual ball valves, that is, Shanghai Fanggao Valve Manufacturing. The most important thing for Fanggao's family ruler products is quality! Quality is put in the first place, and the manual ball valves produced by the trapped Qingyou are in line with national standards, and will never make unqualified products!

Now, Fanggao's manual ball valves are not only used by Chinese, but also used in Europe, America, the Middle East and other places.

Manual ball valve manufacturer: Shanghai valve.

Shanghai Valve **** is a branch located in China, its headquarters in the United Kingdom, which means that it has the most advanced technology in the world! For the design and production of manual ball valves, we all use international cutting-edge scientific researchers and international top equipment! Now, Shanghai Valve has 5 senior engineers, 46 intermediate technicians and more than 300 employees.

Manual ball valve manufacturer: Shanghai Shanyi automation instrument.

Shanghai Shanyi Automation Instrument **** is an industrial manufacturer, in the research and production of drainage equipment is very speakable, the design and production of manual ball valve sales are very good. The reason why the manual ball valve of Zhaoqing Shanyi sells well is because of the specialization of Shanyi, which is not only very professional in design, but also very fine, and every small place is not missed!

Manual ball valve manufacturer: Shanghai Shutong automatic control technology ****.

Shanghai Shutong Automatic Control Technology Co., Ltd. is a manufacturer with a very long history of development, and it is also a manufacturer that the country focuses on. Shutong attaches great importance to science and technology, and has set up a research and development center in order to produce higher quality products. The manual ball valve produced by Shutong is made of the most environmentally friendly material, which is energy-saving and emission-free, and does not cause harm to the environment!

It is precisely because of the excellent design of the structure of the manual ball valve that it reflects a lot of advantages, so many people choose the manual ball valve. In view of the fact that the application of manual ball valves will be more or less eroded, it is very important to choose a high-quality manual ball valve manufacturer!

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