Electric triple eccentric butterfly valve: sealing control expert under harsh working conditions

2025-06-04

In harsh industrial conditions such as high temperature, high pressure, and strong corrosion, the sealing performance of fluid control equipment is crucial, and electric triple eccentric butterfly valves are the best solution to this problem. It is powered by an electric actuator and drives the butterfly plate to rotate flexibly by accurately receiving control signals, achieving fluid on/off and flow regulation.

The "three eccentricities" structure of the electric Three Eccentric Butterfly Valve is its core advantage. The first eccentricity causes the axis of the valve stem to deviate from the center of the butterfly plate, and when opened, the butterfly plate quickly disengages from the valve seat, reducing friction loss; The second eccentricity causes the axis of the valve stem to deviate from the centerline of the valve body, enhancing the pressure bearing capacity of the valve; The third eccentricity causes the sealing surface to deviate in a conical shape. When the valve is closed, the butterfly plate is tightly attached to the valve seat, forming a metal hard seal or a soft hard composite seal. Even when facing high pressures above 10MPa, it can achieve a nearly zero leakage sealing effect. At the same time, the valve body and butterfly plate are made of corrosion-resistant materials such as stainless steel and duplex steel, supplemented by hard alloy welding technology, which can work stably in the extreme temperature range of -196 ℃ to 600 ℃, and can handle various media such as steam, acid and alkali solutions, and natural gas with ease.

In the field of petrochemicals, it can safely control the transportation of high-temperature heavy oil and corrosive chemical raw materials; In the steam pipeline network of the power industry, precise adjustment of steam flow can ensure power generation efficiency; As a key shut-off valve on long-distance natural gas pipelines, it ensures transportation safety with high airtightness. In daily use, regularly checking the circuit and lubrication of the electric actuator, paying attention to the wear of the sealing surface, can ensure the continuous and stable operation of the electric Triple Eccentric Butterfly Valve, and provide excellent sealing and control performance to safeguard industrial production under harsh working conditions.

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