The double eccentric design is designed to reduce the friction of the sealing ring and prolong the service life of the valve. Butterfly Valves Type 567/578 are built according to the double eccentric design, ensuring that the disk does not touch the profile seal in the open position. This design provides higher safety against pressure pulses. Additionally, these valves boast a 50% lower actuation torque compared to our competitors, leading to a longer lifetime due to reduced stress and requiring less maintenance than conventional centric valves.
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