Corporation stop assembly

Details Corporation stop assembly Corporation stop assembly

1996-11-01

1999-11-23

Walton, George L.

Fluid handling

Processes

Cleaning, repairing, or assembling

137318, 25131514, 285197, F16K 4300, F16L 4104

Patent

active

059881992

ABSTRACT:
A fitting for coupling a service line to a polyethylene fluid distribution pipe such as a water main or a gas main includes a stub length of polyethylene pipe that serves as a base for attaching a corporation stop valve. The cross section of the open base end is machined to match the curvature of the outside surface of the main pipe and then fused into the sidewall of the main. The corporation stop valve can then be used for hot tapping polyethylene mains.

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patent: 5150923 (1992-09-01), Ohya et al.
patent: 5577529 (1996-11-01), Katz

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