Door Material 

 Body material: steel, stainless steel (304,316), etc. 
 Ball material: stainless steel (304,316) 
 Seat: PTFE 

 Requirements 

 1, nominal diameter: DN15-200 (mm) 
 2, the maximum nominal pressure: 4.0Mpa 
 3, suitable temperature: -50 ℃ -155 ℃ 
 4, Drive Type: manual, electric, pneumatic 

 Features 

 Soft seal structure, design work and maintenance sealed sealed operating torque, Sealing pressure is moderate, reliable sealing, quick action, hydraulic control easy to realize automatic control, long life, ball pressure temperature ratings only and Shell material related, but more and seat, packing and gaskets and other sealing materials are linked. Seals can be polymer materials, asbestos or rubber seal material selection depends on the valve components of the transmission medium, operating temperature, working pressure and flow rate. 

 Widely used in petroleum, chemical industry, metallurgy, papermaking, pharmaceutical, electroplating and other industries.