- Fixed design of spherical support plate structure
- Structural Design of BTL Combination Seal Valve Seat
- Design of Double Block and Discharge Function (DBB) Structure
- Design of automatic pressure relief structure for valve chamber overpressure
- Multi combination sealing structure and anti blowout design of valve stem
- Fire safety structure design
- Anti static structure design
- Structural design of discharge and venting functions
- Emergency sealing grease structure design
- Mechanical limit design for position indication and on/off
