ABC patented new product dome type butterfly valve which number A73INF, is a 360 degree around inflatable seat butterfly valve.

A73INF Dome type butterfly valve has a logic clear inflating module design and inflatable seat structure. When the valve disc is in the open state or in the process of switching, there is sufficient clearance between the valve disc and the valve seat to ensure no friction between the hemisphere and the valve seat. When the valve disc is in the closed state and stops, the inflation module automatically inflates the valve seat airbag according to the position and movement which provides a uniform distribution of pressure for the seal. When dealing with abrasive and corrosive materials, the inflatable structure seal ring can trap material particles to avoid the wear of the seat and valve ball due to the sliding of material particles under the action of pressure difference.

Since there is no friction between the disc and the seat when the valve is operating, meanwhile the valve stem is behind the seating ring instead of go through seating ring like traditional inflatable seat butterfly valve which form a 360 degree continuous uniform sealing surface, A73INF Dome type butterfly valve can reach a life of more than three million cycles. This can provide contact wear compensation even when the valve seat or ball is severely abraded by material.For slurry, bulk powder, particles, irregular solids, adhesive powder, gas and gas powder, the A73INF Dome type butterfly valve ensures the reliability of system operation and increases valve life by magnitude, greatly reducing impact of valve stop or replacement on material production.