What are the requirements for shut off valve selection and what are the commonly used types of globe

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.

Thank you! As a hydraulic engineer, I can tell you that there are several types of globe valves that are commonly used:

1.Handwheel globe valve: This is the most commonly seen type of globe valve, which uses a handwheel to operate the valve's on/off valve. By rotating the handwheel, the valve can be opened or closed, controlling the flow of fluid.

2.Electric shut-off valve: This type of shut-off valve uses an electric drive to open or close the valve through remote control or automatic control. It is often used in large piping systems or where remote operation is required.

3.Pneumatic shut-off valve: This type of shut-off valve uses a pneumatic drive to control the opening and closing of the valve by air or gas pressure. It has the advantages of fast response and high reliability, and is commonly used in high-pressure piping systems.

4.Butterfly valve: A butterfly valve is a globe valve that uses a disc installed in the valve body to control the flow of fluid. It has a simple structure, small size, and has the characteristics of fast switching and low pressure loss, and is widely used in small and medium-diameter pipeline systems.

5.Ball valves: Ball valves use holes and balls inside the ball body to control the flow of fluid. It has the characteristics of light handling, good sealing and long life, and is often used in high temperature and high pressure or where rapid shut-off of fluids is required.

6.Soft Seal Globe Valve: Soft Seal Globe Valve uses soft seals to achieve the sealing of the valve, which has the characteristics of good sealing performance, light operation and convenient maintenance. It is commonly used in piping systems at low to medium pressure.

The above are several commonly used globe valve types, and it is important to choose the right globe valve type according to the specific application scenario and requirements. Hope it helps! If you have any other questions, please feel free to ask me.

Is a pneumatic shut-off valve a regulating valveThe pneumatic shut-off valve is not a regulating valve, its function is to open and close, and it is controlled by a solenoid valve. Therefore, the pneumatic shut-off valve must be matched with and controlled by the solenoid valve. A pneumatic control valve is a valve that regulates a valve, which can not only open or close, but also control any opening of the valve.

Pneumatic shut-off valve, also known as pneumatic shut-off valve, is an actuator in an automation system. It consists of a multi-spring pneumatic membrane actuator or floating piston actuator and a regulating valve, which receives the signal from the regulating instrument and controls the cut-off, connection or switching of the fluid in the process pipeline. It has the characteristics of simple structure, sensitive response and reliable action.

It can be widely used in petroleum, chemical, metallurgical and other industrial production sectors. The air source of the pneumatic shut-off valve needs to be filtered by the pressure Zen to shrink the air and starve the air, and the medium flowing through the valve body should be liquid and gas, without impurities and particles. The pneumatic shut-off valve adopts a soft seal structure, designed with a working seal and a maintenance seal, with small operating torque, moderate sealing specific pressure, reliable sealing, sensitive action, easy automatic control of hydraulic control, and long service life.

Globe pneumatic ball valves are widely used in petroleum, chemical, metallurgy, papermaking, pharmaceutical, electroplating and other industries. The pneumatic shut-off valve adopts a new series of GT and AT pneumatic actuators, double-acting and single-acting (spring return), rack and pinion transmission, which is safe and reliable. The large-diameter valve is driven by a series of AW pneumatic actuator forks, with reasonable structure and large output torque, and has two modes: double-acting and single-acting.

Millions of car purchase subsidies.

What is the specific content of the shut-off valve selection instructions, and the following Zhongda Consulting will answer for you.

Globe valve is the largest amount of valve in the pipe network, used in the DN 50mm water supply pipe network, for a long time, our company uses the globe valve has serious problems, leakage, loose closing, insufficient strength, not long life phenomenon is more common. The Ministry of Water Supply in last year (1999) in a year of maintenance of more than 8,000, in response to this situation, the company's enterprise standard "pipe network stop valve, copper gate valve technical requirements".

The technical requirements mainly put forward the following points:

1) The upper seal is improved. The first is to cancel the packing and use the "O" type sealing ring. The second is the use of high-quality fillers.

2) Material requirements: strictly stipulate the material of each part.

3) Son's repentance field size requirements. Specify the minimum size of the valve stem, valve body wall thickness, and water cross-section.

4) Anti-corrosion performance: the inside and outside of the valve must not rust and corrode, especially the parts in contact with water must be clean and hygienic.

5) Anti-theft with lock, for the door of the unit, the stop valve on the indoor riser needs to have anti-theft and control functions. According to the above requirements, select the product and control the quality and performance of the pre-state door of the small mouth no shouting valve.

The application of shut-off valve in people's lives is the most important, and we must understand it, because the shut-off valve is a part to ensure our safety, which can be seen in the middle of the gas pipeline. In recent years, there will always be fires caused by gas, and the shut-off valve is to avoid major accidents caused by gas. However, if we want to know how to use the shut-off valve, we need to understand where it is used and what the specific use method is, so let's find out together!

Application of shut-off valves

1. Connect with the combustible gas leakage monitoring instrument, when the instrument detects the leakage of combustible gas, automatically and quickly close the main gas supply valve, cut off the gas supply, and stop the occurrence of vicious accidents in time;

2. It is connected with the ultimate temperature and pressure controller of the thermal equipment, and when the temperature and pressure of the detection point in the equipment exceeds the set limit value, the gas supply valve will be automatically and quickly closed to stop the fuel supply;

3. Connect with the fire alarm system of high-rise buildings, and when a fire occurs in the building, automatically cut off the gas in the building to prevent the occurrence of gas;

4. Set up a gas emergency shut-off valve in the gas pipeline network of the city or factory, which can be centrally controlled in the control room and remotely shut down the pipeline gas supply at the accident site.

Performance of the shut-off valve

The shut-off valve has the characteristics of simple structure, convenient operation, small size, light weight, good sealing performance, large flow rate and reliable use. The spool can be used with a single seat or a sleeve to meet the shut-off requirements under different pressure differences. You can choose a pneumatic piston actuator with high thrust or an electric sock holding mechanism.

The shut-off ball valve is composed of actuator and ball valve body, and the ball valve has the characteristics of strong function, small size, light and cheap, reliable performance, simple matching and large circulation capacity.

In particular, the ball valve has reliable sealing performance, and is used as the cut-off of the medium in the pipeline, and this series of control valves are widely used in petroleum, chemical industry, electric power, metallurgy, iron and steel, papermaking, medicine, food, textile, light industry and other industries. According to the allowable differential pressure, the characteristics of the medium and the requirements of the process pipeline, the single-seat shut-off valve, sleeve shut-off valve and three-way shut-off valve can be selected.

Generally speaking, the essence of the shut-off valve is also a valve, its application is no different from the general valve, but it is used in a special substance, the shut-off valve has a wide range of members, and it has its unique usage in many fields, we have to understand it in many aspects. The shut-off valve has a lot of advantages, we can learn a lot, now the technology is constantly developing, people's use of the shut-off valve is constantly updated, it itself also has a different feeling, more and more intelligent, I believe that in the near future the shut-off valve can be completely intelligent.

You can get it for free

Hello, a shut-off valve refers to a valve that can control the flow of media, and its function is to regulate or close the flow of mediated arubber essentia. The shut-off valve refers to a valve that can completely cut off the flow of the medium, and its function is to cut off or isolate the medium in the sail state at the necessary time. Therefore, the functions of shut-off valves and shut-off valves are different and their uses are different.

Answer: Dear! Have you found out what is the difference between a shut-off valve and a shut-off valve?

Both shut-off and shut-off valves are valves used to control fluids, but they differ in the way they control fluids and their application scenarios. The shut-off valve is a kind of valve used to control the fluid type filial piety, and its main function is to cut off the channel of the fluid, so that the fluid cannot pass through. Shut-off valves are typically used where tight control of fluid flow is required, such as cutting off the flow of fluid in an emergency, or closing the fluid channel to avoid fluid leakage when service or maintenance is required.

The shut-off valve is a valve used to control the fluid, and its main function is to cut off the channel of the fluid, so that the fluid cannot pass through. Shut-off valves are typically used where frequent fluid flow needs to be controlled, such as opening or closing the fluid passage to achieve the desired flow rate or pressure when the fluid needs to be regulated or controlled. Therefore, the difference between a shut-off valve and a shut-off valve is the way in which the fluid is controlled and the application scenario.

The shut-off valve is mainly used to cut off the fluid passage or overhaul or maintain the fluid in an emergency, while the shut-off valve is mainly used to control the flow of the fluid frequently, such as regulating or controlling the fluid. Kiss! I hope my answer helps!