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2. Street elbow - Wikipedia

   en.wikipedia.org/wiki/Street_elbow

   Street elbows are available with bend angles of 90°, 45°, and 22.5°. They can be used in many plumbing applications, including water supply, drainage, sewers, vents, central vacuum systems, compressed air and gas lines, heating and air conditioning, sump pump drains, and other locations where plumbing fittings would be used to join sections of pipe.

3. Piping and plumbing fitting - Wikipedia

   en.wikipedia.org/wiki/Piping_and_plumbing_fitting

   This naming convention applies to other plumbing elbows, such as: - "88 degree elbow" = 92 degrees on a protractor. Visualise bending the left end of the pipe up 88 degrees. Now turn the piece of pipe around so the horizontal piece of pipe is in line with the zero degrees line on the protractor. The protractor will read 92 degrees.

4. National pipe thread - Wikipedia

   en.wikipedia.org/wiki/National_pipe_thread

   Threaded pipe and elbow.The pipe has a male NPT thread, while the elbow is female.. American National Standard Pipe Thread standards, often called national pipe thread standards for short, are United States national technical standards for screw threads used on threaded pipes and pipe fittings.

5. Drain-waste-vent system - Wikipedia

   en.wikipedia.org/wiki/Drain-waste-vent_system

   All DWV systems require various sized fittings and pipes which are measured by their internal diameter of both the pipes and the fittings which, and in most cases are Schedule 40 PVC wye's, tee's, elbows ranging from 90 degrees to 22.5 degrees for both inside diameter fitment (street) as well as outer diameter fitment (hub), repair and slip ...

6. Pipe (fluid conveyance) - Wikipedia

   en.wikipedia.org/wiki/Pipe_(fluid_conveyance)

   Pipe is usually delivered to a customer or jobsite as either "sticks" or lengths of pipe (typically 20 feet (6.1 m), called single random length) or they are prefabricated with elbows, tees and valves into a prefabricated pipe spool [A pipe spool is a piece of pre-assembled pipe and fittings, usually prepared in a shop so that installation on ...

7. Cable tray - Wikipedia

   en.wikipedia.org/wiki/Cable_tray

   To maintain support of cables at changes of elevation or direction of a tray, a large number of specialized cable tray fittings are made compatible with each style and manufacturer. Horizontal elbows change direction of a tray in the same plane as the bottom of the tray and are made in 30, 45 and 90 degree forms; inside and outside elbows are ...