Structural features:
(1) Reasonable welding structure and advanced welding technology
(2) Patent valve body structure: through bending test, seismic test, and environmental simulation test
(3) Fixed design of spherical support plate structure
(4) Structural Design of BTL Combination Seal Valve Seat
(5) Design of Double Block and Discharge Function (DBB) Structure
(6) Design of automatic pressure relief structure for valve chamber overpressure
(7) Multi combination sealing structure and anti blowout design of valve stem
(8) Fire safety structure design
(9) Anti static structure design
(10) Emergency sealing grease structure design
(11) Mechanical limit design for position indication and on/off
(12) Valves installed underground extend the vent, drain, and sealed grease injection ports to the ground for easy operation
