Adopts three-dimensional eccentric to design
Makes the movement track on facing space reach to idealization and there are no attrition and on intervene between hermetical components
Hermetical material has been selected reasonably, ensure hermetic, 10 antisepsis, wearable capability of valve
Main characteristic:<ul>
Tiny moment for starting, flexible and convenient, save labor and energy
Three-dimensional eccentric configuration forces disc close tighter and reach to reliable hermetic capability and with no leakage
High temperature resistant, high pressure resistant and long service life</ul>