What is the difference between a manual two way flow hard seated ball valve and a two way hard seate

1. There is a difference in the runner. The ball valve has a full bore and can pass through the ball. Butterfly valves are not able to pass through the ball.

2. Connection size difference. Butterfly valves have shorter face faces than ball valves.

3. Cost difference.

4. Switching torque difference.

The ball valve, so the clear thought, the valve core is spherical, the butterfly valve, the valve core is round plate-shaped, and the action of opening and closing is like a butterfly's wings fanning.

Two-way hard sealing, refers to the medium flow inlet, the flow outlet is sealed, and the pipeline is installed without reversing the flow direction of the medium. For valves of the same caliber, the cost of ball valves is much higher than that of butterfly valves, but ball valves are spherical due to their two-way seals and good pressure resistance.

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.

As long as there is eccentricity, theoretically speaking, it can not be two-way pressure, and now the best two-way pressure is Q47, but I now have a V-shaped two-way pressure 100%, I don't know if it will be useful to you.

The one-way sealing butterfly valve is the butterfly plate front of the butterfly valve, which must face the flow direction of the medium when it is closed; The medium flows in only one direction, and there should be an arrow on the valve body to indicate the direction of the medium flow. Attention should be paid to the direction of media flow during installation. The two-way sealed butterfly valve is the flow direction of the butterfly plate that can face or turn away from the medium, and there is no need to pay attention to the flow direction of the medium when installing, and there is no arrow on the valve body to indicate the direction of the flow of the medium.

The stem of a two-way sealed butterfly valve is more stressed than the stem of a one-way sealed butterfly valve. In the design, the stem diameter of a two-way sealed butterfly valve with the same diameter and pressure is larger than that of a one-way sealed butterfly valve.

One-way hard seal butterfly valve:

Usually there is an arrow on the body of the butterfly valve to indicate the direction of the flow of the medium, and the butterfly plate of the butterfly valve must face the flow direction of the medium when the front is closed, so we should pay attention to the flow direction of the medium when installing the one-way butterfly valve.

Two-way hard seal butterfly valve:

The body of the bidirectional butterfly valve usually does not have an arrow mark indicating the flow direction of the medium, and the stem of the bidirectional sealed butterfly valve is more stressed than the stem of the one-way sealed butterfly valve in the design. For a butterfly valve of the same diameter and pressure, the stem diameter of the two-way sealed butterfly valve is larger than that of the one-way sealed butterfly valve. The butterfly plate can be installed facing or facing away from the flow direction of the medium, regardless of the flow direction of the medium.

Features of Hard Seal Ball Valves:

1) Low flow resistance;

2) Simple structure;

3) Small size and light weight;

4) At present, the sealing surface material of the ball valve is made of plastic, which has good sealing;

5) Easy to operate, quick to open and close, convenient for long-distance control;

6) Easy maintenance, the sealing ring is generally movable, easy to disassemble and replace;

7) When fully open or fully closed, the sealing surface of the ball and the valve seat is isolated from the medium, and the passage of the medium will not cause the erosion of the sealing surface of the valve.

Features of Hard Seal Butterfly Valve:

1) The unique design of three-way eccentricity [1] enables frictionless transmission between the sealing surfaces, which prolongs the service life of the valve.

2) Elastic seal is generated by torque.

3) The ingenious wedge-shaped design makes the valve have the function of automatic sealing that is tighter and tighter, and the sealing surface has compensation and zero leakage.

4) Small size, light weight, light operation and easy installation.

5) Pneumatic and electric devices can be configured according to user requirements to meet the needs of remote control and program control.

6) The material of the replacement parts can be applied to various media, and the lining can be anti-corrosion.

7) Diversification of continuous structure: butt clamp, flange, butt welding.

Ball valve: the pressure is higher and the temperature is higher Butterfly valve: the opening is more flexible, the friction is smaller, and the temperature resistance is higher.

Two-way metal seal series butterfly valve, is a new type of butterfly valve developed and designed since 1997, the new series of butterfly valve scientifically using new technology, new technology and high-quality materials to make the valve reliable, reduce and avoid maintenance during use, long service life, with good use and social benefits.

The multi-level hard seal butterfly valve is an eccentric metal seal structure, and the sealing form is metal-to-metal seal, the metal seal ring can be replaced, and the stainless steel plate and graphite composite plate seal ring are metal sealed. In addition to electric, the driving forms of hard seal butterfly valves are: electric, worm gear rod transmission, pneumatic, etc.

The butterfly plate of the multi-level hard-sealed butterfly valve is installed in the diameter direction of the pipe. In the cylindrical channel of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, and the rotation angle is between 0° and 90°, and when the rotation reaches 90°, the valve is fully open.

Two-way metal seal series butterfly valve, is a new type of butterfly valve developed and designed since 1997, the new series of butterfly valve scientifically using new technology, new technology and high-quality materials to make the valve reliable, reduce and avoid maintenance during use, long service life, with good use and social benefits. Its products have certain advantages and technical advantages in the industry, manual two-way metal seal butterfly valve, electric two-way metal seal butterfly valve, its technical performance and material not only fully meet and satisfy, but also higher than and better than the relevant national standards and technical requirements, as well as product acceptance, delivery, installation and use requirements.