What are the chemical elements of the cast iron ball core

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.

Cast steel ball valve body material is generally the most commonly used medium strength WCB

Grades of weldable carbon cast steel.

The opening and closing parts (balls) of cast steel ball valves are driven by the valve stem and rotate around the axis of the valve stem. It is mainly used to cut off or connect the medium in the pipeline, and can also be used for the regulation and control of fluids, among which the hard seal V-shaped ball valve has a strong shear force between the V-shaped ball core and the metal seat of the hardfacing cemented carbide, especially suitable for media containing fibers and tiny solid particles. Cast steel ball valves are generally divided into handle cast steel ball valves, pneumatic cast steel ball valves, electric cast steel ball valves, cast iron ball valves, stainless steel ball valves, all-copper ball valves, etc.

The working principle of cast steel ball valve is to rotate the valve to make the valve open or blocked. The ball valve switch is lightweight, small in size, can be made into a large diameter, reliable sealing, and structure.

It is simple, easy to maintain, the sealing surface and the spherical surface are often in a closed state, not easy to be eroded by the medium, and are widely used in various industries.

Ball valve and plug valve are the same type of valves, only its closing part is a ball, and the ball rotates around the center line of the valve body to achieve opening and closing.

Ball valves are mainly used in pipelines to cut off, distribute and change the flow direction of the medium. Ball valve is a new type of valve that has been widely used in recent years, and it has the following advantages:

1. The fluid travel resistance is small, and its resistance coefficient is equal to that of the pipe section of the same length.

2. Simple structure, small size and light weight.

3. Tight and reliable, the sealing surface material of the ball valve is widely used plastic, with good sealing, and has been widely used in the vacuum system.

4. Easy to operate, fast opening and closing, from full open to full closed, only need to rotate 90°, which is convenient for long-distance control.

5. Easy maintenance, simple structure of ball valve, sealing ring is generally movable, and it is more convenient to disassemble and replace.

6. When fully open or fully closed, the sealing surface of the ball and the valve seat is isolated from the medium, and the erosion of the sealing surface of the valve will not be caused when the medium passes.

7. Wide range of application, from small to a few millimeters in diameter, from high vacuum to high pressure.

Ball valves have been widely used in petroleum, chemical industry, power generation, papermaking, atomic energy, aviation, rockets and other departments, as well as people's daily life.