Pneumatic triple eccentric butterfly valve: a pioneer in fluid control under high pressure conditions

2025-06-04

In industrial fluid control scenarios with high pressure, high temperature, and high corrosion, pneumatic triple eccentric butterfly valves stand out for their efficient and reliable performance, becoming a key equipment to ensure production safety and stability. It uses compressed air as its power source and drives the butterfly plate through a pneumatic actuator, accurately achieving fluid on/off and flow regulation. It responds quickly and has strong power, especially suitable for complex working conditions with frequent start stop and high control accuracy requirements.

The "three eccentric" structure of this Butterfly Valve is its core competitiveness. The axis of the valve stem is offset from the center of the butterfly plate, offset from the centerline of the valve body, and the sealing surface is offset in a conical shape. The triple eccentric design breaks the sealing limitations of traditional butterfly valves. When opened, the butterfly plate and valve seat quickly separate, reducing friction and wear; When closed, the sealing surface forms a metal hard seal or a soft hard composite seal through oblique compression, which can withstand pressures of up to 10MPa or more, with a leakage rate as low as almost zero, effectively preventing medium leakage. The valve body and butterfly plate are made of high-strength and corrosion-resistant materials such as stainless steel and duplex steel, and are treated with processes such as hard alloy welding. The temperature resistance range covers -196 ℃ to 600 ℃, and can withstand various media such as steam, strong acid, and natural gas with ease.

In the petrochemical industry, pneumatic triple eccentric butterfly valves can safely control the transportation of high-temperature heavy oil and corrosive chemical raw materials; As a key shut-off valve in long-distance natural gas pipelines, it ensures energy transportation safety with high airtightness; In the high-temperature furnace system of the metallurgical industry, it can still operate stably and adjust the flow rate accurately in the face of high-pressure gas and dust environment. During use, regular inspection of the sealing of the pneumatic pipeline, lubrication of the actuator, and wear of the sealing surface can ensure the long-term and efficient operation of the pneumatic Triple Eccentric Butterfly Valve. With excellent sealing performance and reliable pneumatic control capabilities, it provides a solid guarantee for industrial production under harsh working conditions.

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