Area is pressed and is traded valve system

The utility model discloses an area is pressed and is traded valve system, including first flange, second flange, lead screw and blanking plug, first flange, second flange interval arrangement in opposite directions just pass through the threading thick stick respectively between the two mounting hole that corresponds, all through screw -thread fit installation fastening nut on the lead screw of first flange both sides, the nut was released in the installation on the installation impeld nut, inboard lead screw on the lead screw in the second flange outside, the utility model has the advantages of being simple in structure and convenient in operation, the action that the function realized packing element and slips is unloaded on utilizing the screw thread to safety and stability, blanking plug, designates the passageway with the slips and the sealed anchoring of packing element of blanking plug at the well head, blocks up flow channel to make gate and high -pressure space keep apart, realize dismantling the ga