The application of butterfly series pneumatic valve corrosion

increase the strength of overall pneumatic valves, the pneumatic valve body itself instead of ordinary pneumatic seat in the back of a chair. To achieve common center line butterfly kilograms of nominal pressure pneumatic valve can not be achieved.
simple and compact structure, adopts two pieces type pneumatic valve stem without pin connection. Convenient in maintenance and assembly ( On-site dismantling) In the disk plate has the ability of automatic function ( Up and down, left and right) Implements the disc plate with pneumatic seat if they cannot forgive surplus quantity.
to ensure pneumatic valve, pneumatic valve seat, the accuracy of the connection between disc plate, tongue-and-groove type pneumatic valve seat. At the same time can easily change the pneumatic valve seat.
more reliable seal. Because be spherical sealing, adopts world advanced spherical seal. Pneumatic valve in the opening and closing is smooth transition, so reducing the friction, reduces the torque, can choose low power drive device, thus reducing the user's capital. At the same time increases the service life of pneumatic valve seat ( Ordinary middle - of pneumatic valve Times)
pneumatic valve can adapt to the set of jewels or welded flange connection request, pneumatic seat flange seal face with big wide edge, the structure of the arc. Suitable with any standard flange connection.
the two gaskets with a split ring and spring retainer ring structure. So can effectively prevent the pneumatic valve stem didn't mean to be disassembled, pneumatic valve rod axial positioning device. Carry a certain amount of axial force again at the same time, prevent the pneumatic valve stem weight transfer to the butterfly plate.
that prevent foreign matter invasion, two-way sealing effect on pneumatic valve stem seal. At the same time to prevent medium outflows.
and can decrease the open-close torque at the same time. There are two collar for users to choose, collar is supporting the role of the pneumatic valve stem. I. e. , lubrication of bronze, ptfe.