COMBINATION GLUE HUB AND MECHANICAL COUPLER FOR PIPE FITTINGS

摘要

A fitting for plumbing systems, such as drain/waste/ventilation (DWV) systems that is chemically and mechanically joinable is described. A socket of the fitting has an interior surface configured for chemically joining with tubing. An exterior surface of the socket includes a plurality of projections extending radially outward therefrom. A collar that includes a sidewall with a plurality of bayonet-style channels configured to engage respective projections is provided. Interaction of the projections with the channels during rotation of the collar with respect to the fitting draws the collar toward the fitting and compresses an O-ring between the collar, socket, and tubing inserted therein to form a fluid-tight seal and/or mechanically couple the tubing in the socket. The collar may include longitudinally depending flanges that are depressed against the tubing by a compression ring to mechanically couple the tubing in the socket.

主权项

1. A fitting joinable with tubing by welding or mechanical joining, the fitting comprising:
a socket that accepts an end of a section of tubing; an interior surface of the socket configured for joining to the section of tubing by welding; an exterior surface of the socket including a raised feature thereon; and a collar having a sidewall configured to accept the exterior surface of the socket therein, the sidewall including a channel that receives the raised feature, the interaction of the raised feature and the channel during rotation of the collar with respect to the exterior surface draws the collar toward the socket and applies a compressive force on a sidewall of the tubing to mechanically couple the tubing in the socket.