1. Stainless steel butterfly valve can produce elastic seal by torque, making the sealing better. 

2. The ingenious wedge-shaped design of stainless steel butterfly valve makes the valve have the function of automatic sealing which is closer and tighter. There is compensation and zero leakage between sealing surfaces. 

3. The stainless steel butterfly valve is small in volume, light in weight, light in operation, easy to install and widely used. 

4. Stainless steel butterfly valve can be equipped with pneumatic and electric devices according to the user's requirements, which can control the valve remotely and make it safer.