Pneumatic ultra low temperature ball valve, which brand is better

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.

Cryogenic ball valves have a larger total flow orifice size. Cryogenic ball valves give faster power switching motion and are suitable for storage tank applications, cryopumps, pipelines or low-voltage trolleys. Cryogenic ball valves are available in a variety of sizes with operating temperatures from +120 to -196 tanla.

Cryogenic ball valves are widely used in very low temperature and ultra-low temperature, including but not limited to LNG natural gas, chemical gas, spiritual and steel service sales projects, mining, pharmaceutical industry, wastewater, sewage treatment, carbon dioxide introduction and blending, refrigeration and natural gas applications. There are many kinds of cryogenic ball valves, such as electric cryogenic ball valves, pneumatic cryogenic ball valves, short-shaft pneumatic cryogenic ball valves, etc.

High temperature ball valves.

Ball valves with a working temperature higher than 100 degrees are called high-temperature ball valves.

The material of the high-temperature ball valve is selected according to the user's requirements. In general, the selection of materials is:

One. For ball valves with a working temperature of 100 degrees Celsius to 200 degrees Celsius, the sealing material is generally PPL, and the valve body material should be.

WCB is selected, stainless iron should be selected for the stem material, and general stainless steel <201> should be selected for the ball material.

Two. For ball valves with a working temperature of 250 degrees Celsius to 400 degrees Celsius, the sealing material should be hard sealed.

The valve body material should be WCB, the valve stem material should be stainless iron, and the ball material should be stainless steel "carbonization".

Three. For ball valves with a working temperature of 400 degrees Celsius to 550 degrees Celsius, the sealing material should be hard sealed.

The valve body material should be chromium-molybdenum steel, the ball material should be chromium-molybdenum steel, and the stem material should be chromium-molybdenum steel.

Four. Ball valve materials with a working temperature of more than 600 degrees Celsius, such as: seals, valve bodies, balls, valve stems, etc., are generally selected< 2520 >, five. In some specific cases, it is also necessary to select materials according to the medium, such as WCB carbon steel should be selected for non-corrosive media, and stainless steel should be selected for corrosive media. It is also necessary to choose <304, 316, 316L> according to the strength of corrosion.

Wenzhou Yuanhua valve **** specializes in the production of high-temperature ball valves.

This is a question that cannot be generalized!

Pneumatic ball valves are ball valves with pneumatic actuators. The execution speed of pneumatic actuators is relatively fast, and the fastest switching speed is seconds, so it is usually called pneumatic quick shut-off ball valve. Pneumatic ball valves are usually equipped with a variety of accessories, such as solenoid valves, air source treatment triplets, limit switches, positioners, control boxes, etc., to achieve local control and remote centralized control, in the control room can control the valve switch, no need to run to the scene or high altitude and danger to bring manual control, to a large extent to save human resources and time and safety.

The specific classification of pneumatic ball valves includes: stainless steel pneumatic ball valves, plastic pneumatic ball valves, sanitary pneumatic ball valves, carbon steel pneumatic ball valves, two-way pneumatic ball valves, three-way pneumatic ball valves, and four-way pneumatic ball valves.

Jinyan valve is a stainless steel pneumatic ball valve, a stool check valve for the clamp source, an integrated ball valve, a series of stainless steel quick coupling high-tech enterprises, with perfect computer-aided design and sophisticated Huji computer CNC machine tool production.

Xingyang Rixin Yuantong 185 he-957-00157 electric Wei Tong cloth.

The hemispherical valve is manufactured in the flange sealing face type according to the concave and convex flange process specified in GB T.

Hemispherical valve is a practical operation type of product, its actuator is equipped with a hydraulic actuator, more convenient for users to operate lightly, long-distance automatic operation, the development of the hemispherical valve range of use, especially in the harsh environment is inconvenient with manual operation or normally open action, supporting the automation computer silver Zheng operation, hemispherical valve, more to create a new idea.

The hemispherical valve has the characteristics of small opening force, can break the scaling obstacle when closing, and achieves good sealing performance, and is wear-resistant. Due to the wear-resistant and corrosion-resistant material of hemispherical valves, it is widely used in water, steam, sewage, petrochemical, natural gas, solution and slurry and other two-phase media, as well as dust and gas transmission equipment.

Hemispherical valves have the following characteristics:

1. Straight-through type: one-way sealing and eccentric structure, the ball is separated from the valve body when opened, and the flow channel is straight, and there will be no jamming and blockage.

2. Convenient switching: the spherical surface is separated from the valve body when opening and closing, without any contact, the torque is small, the rotation is flexible, and the shearing effect of the Xiaoling hemispherical valve seat can cut off the scale and adhesion on the sealing surface when opening and closing, and can keep the seal tight.

3. The eccentric structure of the sealing surface enables the spherical surface to automatically compensate for the wear, maintain the sealing of the valve, and have a long service life, safety and reliability.

4. The valve belongs to the hard seal structure, and the sealing pair uses different wear-resistant alloy materials according to different media, and also has hard wear resistance and corresponding corrosion resistance.