Big discharge capacity relief valve of bivalve seat

The utility model relates to a big discharge capacity relief valve of bivalve seat, including valve body and pressure setting device, mainly be that the symmetry sets up two disk seats in the valve pocket of valve body exit channel central line both sides, the valve body up end lies in two valve gaps of valve body export central line bilateral symmetry installation, respectively installs an uide bushing under every valve gap between terminal surface and the valve body up end, every uide bushing hole respectively with the back -flushing disk back outside the cylinder movive seal coordinate, end face centre installs a valve clack of mutually supporting rather than the disk seat of lower extreme respectively under two back -flushing disk, two valve cover inner cavity install a pressure setting device respectively, the valve gap upper end is equipped with controllable formula blocking device. Two valve clacks are opened simultaneously during the emission, and it increases to compare with the existing product and