초록 ▼

A plumbing test fitting for waste or vent pipes and stacks extending between adjacent floors of a building having a closure plate adapted to be slidably fitted between a pair of spaced adjacent ends of a pair of pipes, the joint being sealed by a detachable sealing clamp which also sealably bears ag

A plumbing test fitting for waste or vent pipes and stacks extending between adjacent floors of a building having a closure plate adapted to be slidably fitted between a pair of spaced adjacent ends of a pair of pipes, the joint being sealed by a detachable sealing clamp which also sealably bears against the periphery of the closure plate. A sliding valve element having an operating stem which extends outwards between the pipes and through the sealing clamp can be operated to open or close a passage in the closure plate so as to enable the pipe to be closed for testing and thereafter opened to permit testing fluid to escape down the pipes.

대표청구항 ▼

A test fitting for installation between a pair of spaced apart aligned pipe sections of a sectionalized waste-pipe comprising: (a) a disc-like closure plate having a diameter at least as great as the outside diameter of the waste-pipe sections adapted to be slidably inserted and removed from between

A test fitting for installation between a pair of spaced apart aligned pipe sections of a sectionalized waste-pipe comprising: (a) a disc-like closure plate having a diameter at least as great as the outside diameter of the waste-pipe sections adapted to be slidably inserted and removed from between said sections, the plate having a passage for providing communication between the pipe sections, (b) a valve element mounted on the closure plate operable for closing or opening the passage to passage of fluid between the pipe sections, (c) a radially extending operating handle connected to the valve element and extending beyond the periphery of the plate for enabling manual operation of the valve element between open and closed positions, (d) a split compressable sealing gasket adapted to be wrapped circumferencially around the periphery of the plate and having a width sufficient so as to overlap the adjacent end portions of the waste-pipe sections, the gasket having an opening for enabling the passage of the operating handle there through, (e) a split separable clamp adapted to be extended circumferencially around the gasket and having an opening aligned with the opening of the gasket for enabling the passage of the operating handle there through for compressing the sealing gasket into fluid tight engagement with the periphery of the closure plate, the lapped adjacent end portions of the waste-pipe sections and the operating handle for preventing the escape of water from between the pipe sections and for enabling manual operation of the operating handle to move the valve element from its closed to its open position when the test fitting is applied to the pipe sections.