Flange worm gear hard seal butterfly valve

The performance characteristics
1.Unique structure, lightweight, flexible operation, convenient and convenient operation;  
2.The seal is reliable, and the gas seal is not leaking.
3.The flow characteristics tend to be in line.  
4.Adopt the three-eccentric principle to make the sealing cover close to zero to extend the service life of the valve;
5.Wide application. It can be used for water, steam, oil, air, gas, etc.
6.Applicable to different temperatures and 6.4 MPa under pressure grade, corrosion resistance and other media pipelines.