1. The soft seal design of the double offset rubber sealed butterfly valve gives it zero leakage performance.

2. The double offset rubber sealed butterfly valve can get the disk detached from the seat quickly when the valve is opened, greatly eliminating the unnecessary over-extrusion and scraping between the disk and the seat, reducing the opening resistance torque as well as the wear, and increasing the seat life.

3. The seat design of the double offset rubber sealed butterfly valve adopts different non-metallic materials according to different customers to meet different working conditions.

4. The external blow-out proof stem of the double offset rubber sealed butterfly valve is safe and reliable, and conforms to the requirements of API 609.