Inventors:
Wayne Spears - Sylmar CA
Harry Bekeredjian - Van Nuys CA
Assignee:
Spears Manufacturing Company - Sylmar CA
International Classification:
F16L 5500
Abstract:
A fitting suitable for coupling a plastic pipe to an externally threaded metal element, such as a sprinkler head, comprises a coupling, an external, metallic reinforcing collar on the coupling, an internally threaded insert in the coupling, and an O-ring. The collar is shaped to prevent rotation, and is held in place by a lip on the insert. The O-ring is held in a chamfered recess on the external surface of the insert.