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Credibility ,The word “taper” mentioned above refers to the difference between many pipe threads and those on bolts and screws. Pipe threads not only a make mechanical joint but also a leak proof one. To do this, the threads become shallower the farther they are from the end of the fitting or the pipe. The bottoms of the threads taper. The taper is 1/16 inch in an inch.
Because of the taper, a pipe can only screw into a pipe fitting a little distance before it jams. The standard represents this distance, the effective thread. The standard also represents another distance, the engagement, which is the distance the pipe can be screwed in by hand, without much effort. For workers, it is more easy to know how many turns to make by hand or with a wrench.
Types of pipe threads
Various threads available in pipe and pipe fittings are as follows:
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Yaang Pipe Industry Co., Ltd. is an international supplier of piping solutions for flange, butt welding fittings, socket welding fittings and threaded fittings. Our products are widely used in different industrial fields, including oil and gas, chemical industry, petrochemical industry, power plant, pulp and paper industry, environmental and water conservancy engineering, engineering projects, etc.