Summary of three pneumatic valve lever to cut off the butterfly 2

with pneumatic valve body and configuration of pneumatic valve plate and through pneumatic valve spindle, three pneumatic valve lever to cut off the butterfly. Equipped with front spindle distribution of shaft center plate is connected with the pneumatic valve plate of the active rod and symmetric Settings in the active rod on both sides of the fixed link, at the rear end of the fixed rod is articulated in pneumatic valve body, the front end of the fixed link distribution shaft connected to follower lever, follower lever on the other side of the distribution of axial pneumatic valve plate connected side plate, shaft and pneumatic valve body cooperate with packing seal structure, the setting of the outer edge of the sealing structure has a main shaft bearing, pneumatic valve body on one side of the set is composed of hydraulic cylinder and the crank driving devices. The control of pneumatic valves open and close, using principle of four bar linkage pneumatic valve plate in contact and make translational movement from sealing seam allowance when no friction, pneumatic valve life long; Bar system each hinge point in high-temperature self-lubricating bearing assembly, can ensure flexible without card under the condition of high temperature resistance; Check the seal set to soft and hard dual seal form, the seal reliable; Pneumatic valve configuration access port, convenient repair and maintenance.