Unsteady adjustment type bivalve seat of LNG ball valve sealed firmly

The utility model provides an unsteady adjustment type bivalve seat of LNG ball valve sealed firmly, the disk seat struts sealing member formation by thrust spring and pressure medium promotion kicking block and seals, promotes disk seat and spheroid simultaneously and is in the same place for tight armful, and the unsteady adjustment type bivalve seat of formation is sealed firmly. This novel disk seat promotes the kicking block by spring and pressure medium and struts the sealing member and form sealedly, and it is sealed firmly to form unsteady adjustment type bivalve seat, and sealing performance is good and have a fire prevention function, the spheroid is the alloy steel surfacing, and the disk seat is the build -up welding of alloy steel build -up welding gold steel, and the disk seat adopts the underhand polish with spheroidal sealing up, so ball valve sealed firmly can not produce too big wearing and tearing when the switch, wear resistance is good, and the switch is light, long service life, connecing between spheroid and valve rod, valve rod and the valve body and having adopted conductive spring, avoid the static sparking to light the medium, have anti -static function, the valve rod design has prevents blowing off the structure, has ensured the security of system.