초록 ▼

A swing check valve wherein the valve seat, cage and disc are in the form of a cartridge having an overall length substantially equal to the length of the valve body. The valve is for use between flanges where the flanges do not provide support to prevent movement of the cartridge upstream or downst

A swing check valve wherein the valve seat, cage and disc are in the form of a cartridge having an overall length substantially equal to the length of the valve body. The valve is for use between flanges where the flanges do not provide support to prevent movement of the cartridge upstream or downstream. The cartridge is held in place by cooperating shoulders and a plate-like member engaging the cartridge and a groove in the valve body.

대표청구항 ▼

A swing check valve, comprising: a body having planar upstream and downstream ends and a bore therethrough interconnecting the upstream and downstream ends; a removable valve seat in the bore; a disc sized to mate with the seat; a removable ring-shaped cage in the bore supporting the disc for pivota

A swing check valve, comprising: a body having planar upstream and downstream ends and a bore therethrough interconnecting the upstream and downstream ends; a removable valve seat in the bore; a disc sized to mate with the seat; a removable ring-shaped cage in the bore supporting the disc for pivotal movement toward and away from the seat; and means for securing the seat and cage to the wall of said bore against upstream and downstream movement, including mating grooves in the outer periphery of the cage and the wall of said bore; and means extending into said mating grooves wherein the seat and cage are one member, and wherein said first mentioned means includes an annular shoulder in the bore facing downstream, and a mating shoulder on said member.