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Metal hard seal ball valve is widely applied in extremely harsh working conditions, like the catalyst in the coal chemical industry, poly-silicon and oil refining, and the abrasion-resistance valve in the mine industry. As for the two/three-phase flow (pneumatic/solid/hydraulic) working condition, we’ve developed the self-cleaning seat with the patent design and the damping sediment structure, which have been applied successfully in major national projects. KENENG adopts special structural designs for different working conditions, thus ensuring KENENG valves’ reliability and long life. 

Product range
Pressure class: Class150~2500
Diameter range: DN25-400 1(1 -24")
Connecting mode: butt-weld, flange, etc. 
Actuating mode: manual, electric, pneumatic, pneumatic-hydraulic, etc. 
Structure type: floating, fixed, two-piece or three-piece
 

Technical characteristics of KENENG QYII ball valve: 
Split seat design with patented technology, easy for maintenance and replacing
Available for providing the scraping and sweeping function against scaling
Sealing surface adopting high-velocity oxygen fuel (HVOF)
Big stem size design
Reasonable design of sealing surface width and 107 increase for ball seal grinding belt
Valve chamber available for being designed with the purging function against material accumulation in the application environment of solid granular media 
Double sliding bearing design both for protecting the packing box’s packing set and for reducing the valve’s operating torque
Seat spring provided with the design against material accumulation and the reliable concession protection
Floating ball structure providing a two-way seal structure