Two isolation metal -seated ball valve

The utility model discloses a two isolation metal -seated ball valve, which comprises the following components: a valve body, the inboard central authorities of valve body install the spheroid, spheroidal one end is provided with first disk seat, the spheroidal other end is provided with the second disk seat, the sealing washer is installed to one side of first disk seat, one side of sealing washer is provided with a lock ring, prop up one side of lock ring and install the dish spring, one side of second disk seat is provided with the helixseal ring, one side of helixseal ring is provided withthe second backing ring, one side of second backing ring is provided with the leaf spring, one side of leaf spring is provided with first backing ring, one side of first backing ring is provided withthe graphite pad. The utility model relates to a two isolation metal -seated ball valve to current abrasion -proof ball valve technique and valve seal principle, has developed the two granule metal -seated ball valve of two i