초록 ▼

A swing check valve where the cage is a ring-like member supporting the disc or clapper where the disc is loaded from the downstream end of the body and held in operating position by a tubular retainer extending from the downstream end of the body. The cage and valve seat may be formed separately or

A swing check valve where the cage is a ring-like member supporting the disc or clapper where the disc is loaded from the downstream end of the body and held in operating position by a tubular retainer extending from the downstream end of the body. The cage and valve seat may be formed separately or as a part of the same member and the seat may be formed as a part of the valve body. The tubular retainer may be split lengthwise and compressed into the valve body for holding the cage and seat in assembled relation during shipment and handling.

대표청구항 ▼

A valve for use between flanges, comprising: a tubular body having upstream and downstream planar ends for mating with adjacent flanges, said body having a counterbore in the downstream end thereof forming an annular shoulder in the body facing in the same direction as said downstream end; an annula

A valve for use between flanges, comprising: a tubular body having upstream and downstream planar ends for mating with adjacent flanges, said body having a counterbore in the downstream end thereof forming an annular shoulder in the body facing in the same direction as said downstream end; an annular seat in the body facing the downstream end of the body; a ring-like cage in said counterbore between the seat and the downstream end of the body; a disc supported in the cage for swinging movement toward and away from the seat; and a tubular retainer lining the walls of the counterbore and extending from the cage to the downstream end of the body for holding the cage in position against the seat.