What is the difference between an electric butterfly valve and an electric gate valve?

The difference between an electric butterfly valve and an electric gate valve

1. Electric butterfly valve: 0-90 degree rotation quarter-turn valve, specific good flow characteristics, small size, high cost performance.

2. The linear stroke control mode of the up and down movement of the electric gate valve can be used as a shut-off valve, which is large in size and expensive.

3. The electric butterfly valve cannot be used for high temperature and high pressure working conditions, and is not wear-resistant. The electric gate valve is generally used to close the medium with granular material, and is suitable for high temperature and high pressure working conditions.

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.

The introduction of electric butterfly valves, we mainly analyze the introduction, characteristics, applications, and analysis as follows:

The electric butterfly valve is composed of an electric actuator and a variety of butterfly valves, and the control system valve that controls the switch and adjustment of the butterfly valve through the power signal. It can be used as shut-off valve, control valve and check valve for piping system. With manual control device, once the power failure occurs, it can be temporarily operated manually, so as not to affect the use.

FeaturesCompared with other electric valves, imported electric butterfly valves have his advantagesFeatures 1, electric butterfly valves are convenient to open and close, labor-saving, small fluid resistance, and can be operated frequently.

2. The electric butterfly valve has simple structure, small size and light weight.

3. The electric butterfly valve can transport mud and accumulate less liquid at the mouth of the pipeline.

4. Under the low pressure of the electric butterfly valve, it can achieve good sealing.

5. The electric butterfly valve has good adjustment performance.

The application of electric butterfly valve can be widely used in the industrial process automatic control system of food, environmental protection, light industry, petroleum, chemical industry, water treatment, municipal engineering, papermaking, electric power, water treatment and other industries. For example, in the fields of water treatment, environmental protection, and municipal engineering, the owners of many projects have designated the imported electric butterfly valves of the American Vedun VTON brand. Because of his good performance, beautiful appearance, long service life, and good service, it is a cost-effective product in electric valves.

Further reading: Installation and maintenance.

1. During installation, the valve disc should stop in the closed position.

2. The opening position should be determined according to the rotation angle of the butterfly plate.

3. For butterfly valves with bypass valves, the bypass valve should be opened before opening.

4. It should be installed according to the installation instructions of the manufacturer, and a solid foundation should be set for the butterfly valve with large weight.

With the development of electric valves, there are many well-known valve companies at home and abroad to produce electric valves, and electric butterfly valves are important execution units in the field of industrial automation control. It belongs to a variety of electric valves and electric control valves. It is widely used in textile, power station, petrochemical, heating and refrigeration, pharmaceutical, shipbuilding, metallurgy, light industry, environmental protection and other fields.

This product can be used as shut-off valves, control valves and check valves in piping systems. Complete manual controls, electric or pneumatic transmissions, can meet the specific conditions of different working conditions. Meets the most stringent quality requirements for very long-lasting applications.

Especially in the metallurgical steel and shipbuilding industries, it has a very high reputation.

Electric butterfly valves are suitable for applications where flow regulation is required. Because the pressure loss of the butterfly valve in the pipeline is relatively large, about three times that of the gate valve, when selecting the butterfly valve, the influence of the pressure loss of the pipeline system should be fully considered, and the firmness of the butterfly plate to bear the pressure of the pipeline medium when it is closed should also be considered. In addition, the limitations of the operating temperature to which the elastomeric seat material can be subjected at high temperatures must also be taken into account.

The structural length and overall height of the butterfly valve are small, the opening and closing speed is fast, and it has good fluid control characteristics, and the structural principle of the butterfly valve is most suitable for making large-diameter valves. When a butterfly valve is required to be used to control the flow rate, it is important to select the correct size and type of butterfly valve so that it can work properly and effectively. In general, the midline butterfly valve requires a short structural length and a fast opening and closing speed (1 4 revolutions) in throttling, regulation control and slurry media.

Low pressure cut-off (small pressure difference), butterfly valve is recommended. Butterfly valves can be used when there is a small amount of leakage into the atmosphere and abrasive medium in the case of double-position adjustment, necked ground channel, low noise, cavitation and gasification, a small amount of leakage to the atmosphere, and abrasive medium. When the butterfly valve is used under special working conditions, such as throttling adjustment, or strict sealing, or serious wear, low temperature (cryogenic) and other working conditions, it is necessary to use a special butterfly valve with metal seal with adjustment device.

Electric control valves are used in industrial automation systems such as electric power, chemical industry, metallurgy, environmental protection, water treatment, light industry, building materials, etc.

Electric butterfly valves are used in automatic control systems for industrial processes in food, environmental protection, light industry, petroleum, chemical industry, water treatment, municipal engineering, papermaking, electric power, water treatment and other industries.

The difference between electric control valve and electric butterfly valve is: different working principles, different characteristics, and different shortcomings.

First, the working principle is different.

1. Electric control valve: The electric control valve drives the valve to change the cross-sectional area between the valve core and the valve seat by receiving the signal of the industrial automation control system (such as: 4 20mA) to control the flow, temperature, pressure and other process parameters of the pipeline medium.

Implement automatic adjustment functions.

2. Electric butterfly valve: after the electric butterfly valve is connected and debugged by the regulating electric actuator and the valve stem; The electric energy is used as the driving force to drive the valve plate of the hard seal butterfly valve, which is used as the 0 90° partial rotary movement of the base bridge. Receive 4 20mA signals from the industrial automation control system to accurately control the valve opening, so as to achieve the adjustment and control of different process parameters such as flow, temperature, pressure, etc.

Second, the characteristics are different.

1. Electric control valve: The electric control valve has the characteristics of small size, light weight, simple connection, large flow rate and high adjustment accuracy.

2. Electric butterfly valve: The electric butterfly valve has the characteristics of small size, light weight, reliable performance, simple matching, large flow capacity, and is especially suitable for the medium is cleaner liquid and gas.

Third, the disadvantages are different.

1. Electric control valve: The internal heat generated by the operation of the electric control valve will lead to thermal protection and stop the control valve from working; Because the motor must go through multiple stages of deceleration to output torque, the running speed is not very fast, and it is not suitable for some occasions that require rapid opening and closing; Due to the large number of moving parts, it is relatively easy to fail, especially in the working conditions with frequent adjustments.

2. Electric butterfly valve: the electric butterfly valve has a small range of pressure and working temperature; Poor sealing.

Encyclopedia - Electric Control Valve.

Encyclopedia - Electric butterfly valve.

If the adjustable electric valve opening and closing is used to automatically control the Xunwei exacitant socks, it is necessary to take sensors, regulators, electric actuators, mechanical connection valves and valve positions, and the opening degree of Shanqing is fed back to the regulator display screen and all the setting values before the action.

Butterfly valve and box valve are more commonly used valves, and their functions are different, so they need to be distinguished before purchasing, and then choose the appropriate valve to use to ensure a normal home. So what are the differences between butterfly valves and gate valves.

1. What are the differences between butterfly valves and gate valves?

1. Mode of action.

The gate valve with stable performance on the market drives the valve plate through the valve stem, and drives the valve plate to move vertically up and down to achieve the purpose of opening and closing the valve. This unique mode of operation can ensure that all water flow is cut off in time, and a better shut-off effect is achieved; The butterfly valve realizes the opening and closing of the valve through the rotational movement of the valve plate, so as to maintain the requirement of fast opening and closing.

2. Effect of use.

The gate valve can ensure a better sealing effect when in use, after all, the valve plate can be connected to the corresponding track; Butterfly valves have a certain water flow regulation function and can be used in quick-opening occasions, but their sealing performance is much lower than that of gate valves.

3. Direction of use.

Professional gate valve products have good use effect and superior sealing performance, and can be used in some occasions with high sealing requirements; Butterfly valves are small in size and can be used in places where installation space is limited. After all, there is a big difference in the performance of gate valves and butterfly valves.

2. What should be paid attention to during the installation of butterfly valves?

1. Before installation, you should know whether there is a problem with the product performance and flow direction arrow, and rub the inner cavity of the valve. No stains are allowed to adhere to the sealing ring and disc, and the disc should not be closed before cleaning to avoid damaging the sealing ring.

2. It is recommended to use a special flange for butterfly valves, and the best position for installation on the pipeline is to install vertically, but it cannot be installed upside down.

3. The flow needs to be adjusted during use, and there is a worm gear gearbox control. For butterfly valves with more openings and closings, every 1 2 months or so, open the worm gear box cover to see if the butter can be used normally.

I concluded: What are the differences between butterfly valves and gate valves, I will introduce them here first, do you understand it? The selection of valves needs to be determined according to the actual situation, so that you can choose the right one, which is safer and more assured for later use.