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Electric triple eccentric butterfly valve
The electric triple eccentric butterfly valve adopts a three-dimensional eccentric structure, which has the advantages of strong applicability, low to
Product details
Overview of electric triple eccentric butterfly valve:
The electric triple eccentric butterfly valve adopts a three-dimensional eccentric structure and hasStrong applicability、Low torque force、Less friction、The advantages of good sealing performance are mainly composed of flange or clamp type three eccentric butterfly valves connected to electric actuators. When the electric triple eccentric butterfly valve is opened, the disc plate immediately separates from the valve seat sealing surface, reducing friction and interference with the sealing surface, greatly improving the service life of the butterfly valve. The sealing surfaces of the disc plate and valve seat of the electric triple eccentric butterfly valve are made of stainless steel material, which ensures reliable corrosion resistance, temperature resistance, pressure resistance, and wear resistance of the butterfly valve, making it a high-performance energy-saving electric butterfly valve.
Electric flange triple eccentric butterfly valve electric clamp triple eccentric butterfly valve
Application of electric triple eccentric butterfly valve:
Electric triple eccentric butterfly valves have the dual advantages of metal sealing and elastic sealing. They have excellent sealing performance in both low and high temperature conditions, and are widely used in some fields such as high temperature, high pressure, and strong corrosion. They are mainly used in industries such as petroleum, chemical, power, metallurgy, steel, papermaking, medicine, food, textile, and light industry.
Performance characteristics of electric triple eccentric butterfly valve:
1. There are electric clamp type triple eccentric butterfly valves and electric flange triple eccentric butterfly valves, which can meet the needs of pipelines with different connection methods.
2. The sealing performance is reliable and the service life is long. It adopts a three-dimensional eccentric structure, and there is very little friction between the butterfly valve and the valve body when it is opened and closed.
3. Using different valve body materials and sealing rings, it can be applied to various media such as different temperatures, pressure levels, and corrosion resistance;
4. The three eccentric structure has a sealing function that becomes tighter as it is closed, and is flexible to operate without being affected by the high or low pressure of the medium.
5. The electric triple eccentric butterfly valve can adjust the sealing ring of the butterfly plate to approach the valve seat, restoring the original sealing performance and greatly improving the service life.
5. The electric triple eccentric butterfly valve can adjust the sealing ring of the butterfly plate to approach the valve seat, restoring the original sealing performance and greatly improving the service life.
External structure of electric triple eccentric butterfly valve:
Structural diagram of electric flange triple eccentric butterfly valve
Parameter guidance for electric triple eccentric butterfly valve:
| Nominal Diameter | DN50～DN1200(mm) | ||
| nominal pressure | PN1.0、1.6、2.5、6.4MPa | ||
| Connection form | Clamp type and flange type | ||
| sealing form | Triple eccentric metal hard seal | ||
| supply voltage | AC220V, AC380V (other customized DC24, etc.) | ||
| Operating range | 0～90° | ||
| Leakage amount | According to GB/T4213-92, it is 10-4 of Kv value | ||
| body material | Carbon steel, stainless steel 304, 316 | ||
| Valve plate material | Carbon steel, stainless steel 304, 316 | ||
| scope of application | waterSteamEnvironmental protection treatment, corrosive media, etc | ||
| Temperature | Carbon steel: -29 ℃~400 ℃ Stainless steel:- 40℃～450℃ | ||
| actuator | Optional explosion-proof type, can be equipped with manual device | ||
| control mode | Ordinary switch type (switch two position control), intelligent regulation (4-20mA analog signal control) | ||
Structure principle of electric triple eccentric butterfly valve:
Principle and structure diagram of electric triple eccentric butterfly valve
1. Deviation from the pipeline 2. Deviation from the center of the sealing surface 3. Tilted cone shape
On the basis of the double eccentric butterfly valve, the center of the valve seat sealing surface is formed at an angular eccentricity (angle β) with the valve centerline, so that during the opening process, the sealing surface of the butterfly plate immediately disengages from the valve seat sealing surface at the moment of opening, and only contacts and compresses the valve seat surface at the moment of closing. This unique eccentric combination fully utilizes the cam effect, completely eliminating mechanical wear and scratches between the sealing surfaces of the butterfly valve sealing pair during valve opening and closing, and eliminating the possibility of wear and leakage. By changing the compression seal to a torque seal and adjusting the external driving torque, the sealing pressure ratio can be adjusted, greatly improving the sealing performance and lifespan of the three eccentric structure sealing butterfly valve.
Related products:Pneumatic triple eccentric butterfly valve Electric triple eccentric hard seal butterfly valve Electric triple eccentric regulating butterfly valve
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