Well head open type sealing ring seat circle

The utility model relates to a metallic sealing ring, concretely relates to well head open type sealing ring seat circle, including the seat ring of installing the toper mount pad in the sealing ring terminal surface and being connected with the toper mount pad, mounting groove looks adaptation on the size of toper mount pad and the sealing ring terminal surface, be equipped with the incision on the seat ring, the incision extends to the toper mount pad, makes the annular size of whole sealing ring seat circle adjustable. It has the incision to open on the present ring of this well head open type sealing ring seat circle for the annular size of whole sealing ring seat circle is adjustable, and back on the sealing ring is installed to this circle, but the diameter of automatic fine tuning seat circle make the power of interior male cone (strobilus masculinus) effect on the corresponding awl groove face of sealing ring of toper mount pad unanimous, thereby eliminates the sealed not tight situation of contact su