Structural features1.
The inclined elliptical butterfly plate radial dynamic balance sealing
system is adopted, the force on both sides of the valve inlet and outlet
is approximately balanced, the opening torque of the valve is small,
the positive and reverse sealing performance is reliable, and the
bidirectional pressure bearing capacity is 100%;
2. The sealing
surface of the valve is made of integral metal sealing ring, which is
machined with high precision. The sealing cross-section is elliptical,
which forms a sealing pair with the metal sealing surface of the valve
seat. When the valve is opened and closed, the sealing surface of
butterfly plate contacts or disengages instantaneously along the 360 °
circle, which can quickly and accurately realize the opening or closing
action;
3. Three eccentric structure is adopted, that is, an angle
eccentricity is added on the basis of double eccentric butterfly valve.
