Eccentric Butterfly Valve

Product Introduction

‌Tri-eccentric butterfly valve‌ is one designed by the principle of three-dimensional eccentricity. Its characteristic is that the axis of the valve stem deviates from the center of the disc and the center of the body at the same time, and the rotation axis of the valve seat has a certain angle with the axis of the valve body channel. This design makes the tri-eccentric butterfly valve have significant advantages in sealing performance, pressure and temperature resistance, and service life‌.

Product Advantages

1. The sealing of the Tri-eccentric valve is achieved by squeezing between the valve sealing surfaces. The greater the closing torque, the higher the sealing level, and ""zero leakage"" can be achieved. 

2. Due to the design of the triple eccentric structure, the friction phenomenon of the valve is reduced during the opening and closing process, which greatly increases its service life. 

3. The triple eccentric structure increases the flow diameter of the valve and the valve has a higher flow rate. 

4. When the valve is opened and closed, the valve shaft only needs to rotate between 70-90 °, which shortens the opening and closing time of the valve and enables quick closing. 

5. Tri-eccentric butterfly valves mainly include tri-eccentric metal seal butterfly valves, stainless steel tri-eccentric butterfly valves, carbon steel tri-eccentric butterfly valves, and high-performance tri-eccentric butterfly valves.

• The sealing surface design of the tri-eccentric valve allows it to maintain good sealing performance in high-pressure and high-temperature environments and reduce the risk of leakage.

• Due to the unique design of the sealing pair, the valve has less friction during the opening and closing, thereby reducing the wear of the sealing surface and extending the service life of the valve.

• The trieccentric butterfly valve is suitable for various fluid media, including gases, liquids, and even media containing particulate matter, which makes it widely used in petroleum, chemical, metallurgy and other industries. ‌

Eccentric butterfly valve

1) Design Standard: API 609.GB/T12238

2) End Flange: ASME B16.5.JIS B2212.DIN 2543,GB9113

3) Size: 2"-72"

4) Pressure: 150lb~300lb

5) Temperature: -29℃~425℃

6) Materials: Carbon steel,Stainless steel

7) Suitable Medium: Water,Oil,Gas,Steam

Q1: How is the sealing performance of the trieccentric butterfly valve?

A1: It has the ability to achieve zero leakage, and is suitable for demanding sealed environments.

Q2:‌Is the tri-eccentric butterfly valve resistant to high pressure and high temperature?‌

A2: It is able to withstand pressure up to CL2500  and high temperatures of 850 °C.

Q3: What is the service life of tri-eccentric butterfly valve?‌

A3: Good wear resistance and no deformation after working for a long time.

Q4: Can the tri-eccentric butterfly valve be adjusted?

A4: It has a regulating function and is often used as a regulating valve.