High-performance Butterfly Valve

Dafugui high-performance butterfly valves are mainly composed of valve bodies, valve plates, valve stems, and sealing rings, and are widely used in industries such as petroleum, chemical, power, and water treatment. Our high-performance butterfly valves meet national quality standards, feature flange connections, are suitable for oil media, and come with comprehensive after-sales service. We offer readily available stock. Please contact us for more information and to find the best solutions for you.

Product Parameters

Difference from ordinary butterfly valves

In existing butterfly valve technology, traditional products mostly use materials such as rubber and PTFE as the sealing structure. However, due to their inherent design characteristics, these butterfly valves cannot meet the stringent requirements of high temperature, high pressure, corrosion resistance, and wear resistance.

The more advanced high-performance butterfly valve adopts an integrated valve body and seat design. The valve seat sealing surface is overlaid with a temperature- and corrosion-resistant alloy material, and the valve plate is equipped with multi-layer soft-stacked sealing rings.

Compared to traditional butterfly valves, high-performance butterfly valves not only possess the core advantage of high temperature resistance, but are also easier to operate, with no frictional loss during opening and closing. When closing, the torque of the transmission mechanism increases synchronously, achieving precise sealing compensation, which significantly improves the sealing reliability of the butterfly valve and effectively extends the product's service life.

Technical Advantages

1. Double/triple eccentric design achieves zero leakage

2. Low friction and long service life; with proper use, service life can exceed 100, 000 cycles

3. Resistant to high pressure and high temperature

4. Low flow resistance, small size and light weight, supports automated control.

Our high-performance butterfly valves offer sealing performance far exceeding that of ordinary butterfly valves, making them particularly suitable for high-pressure and high-temperature environments. Our products feature cast steel valve bodies and hard-seal structures, and we support customization of different parameters to meet your specific needs.

Technical Classification and Structural Analysis

High-performance butterfly valves are classified into three types based on their eccentric structure, each with its own applicable scenarios:

1. Single Eccentric Butterfly Valve: The valve shaft deviates from the valve body centerline, reducing valve seat wear. Suitable for low-pressure, normal-temperature, and low-corrosive fluids, and water supply and drainage systems.

2. Double Eccentric Butterfly Valve: The valve shaft deviates from both the valve body centerline and the sealing surface centerline, improving sealing performance and reducing operating torque. Suitable for medium-high pressure and medium-temperature conditions such as urban water supply and sewage treatment.

3. Triple Eccentric Butterfly Valve: An additional angular eccentricity is added to the double eccentric design, achieving "wedge-shaped compression" of the sealing surface, eliminating opening friction, and achieving zero leakage. Suitable for high-pressure, high-temperature, and highly corrosive media such as those in oil, natural gas, and chemical processes.