730E 為獨特的三偏心密封結(jié)構(gòu)設(shè)計，可完全消除閥門在90°行程內(nèi)，閥座密封面產(chǎn)生的摩擦及擦傷，并依靠閥座產(chǎn)生的作用扭矩，使閥座實現(xiàn)雙向緊密切斷性能。

730E features a unique triple offset geometry sealing mechanism. Which can completely eliminate rubbing  galling generated at the sealing surface throughout the valve's 90 degree rotation. And provide bi-directional. Hight shut-off performance by torque seating action.