Design Advantage: 1. Wide channel,wide sealing surface ———— Better airtightness and flow performance , energy conservation 2. Large valve lift ———— Large flow area, low loss of the valve 3. High performance impact resistance of PEEK valve plate ———— low loss of the valve seat and valve plate ,low noise 4. Special structural design of the valve plate ———— Decrease the valve tilting movement 5. Sturdy spring ———— low stress and long life 6. Soil Resistance ———— Resistance to liquid and impurities and oil viscosity, high reliability 7. Optimum design of the valve bonnet ———— Resistance to oil and viscosity Suitable Area: Coal Chemical Industry Waste Gas Recovery for Oil and Petrochemical