1, it is refined that seal and adopt the synthetic rubber , polytetrafluoroethylene (PTFE) to the sealed valve seat material of inserting type butterfly's valve softly and succeed, the sealing property is good.
2, of simple structure , two-way to seal , structure compactness , light and handy , economical and practical price.
3, 90 degrees of valves are turned round, open and close it rapidly, it is flexible and light to operate.
4, can choose the spare part of different materials , applicable many kinds of medium and pressure are required.
5, soft sealed centre type structure. Centre type soft sealed butterfly's valve, the valve stem is passed from the centre of butterfly's board, butterfly's valve connects the form and can be adopted to the inserting type , inserts the lug type , flange type only.
6, require according to different operating modes , can offer the special-purpose butterfly's valve of the antiseptic desulphurization , not sell to inserting type butterfly's valve , prevent the medium from selling the place and remain and corrodes awls to sell in the awl, cause the valve to be revealed.

Second, adopt the standard:

Third, main technical parameter:

Fourth, main spare part material: