Introduction and classification of elbows<br> 1, the introduction of the elbow: In the pipeline system, the elbow is the pipe that changes the direction of the pipeline. <br> 2, elbow classification: <br> According to the production process, there are welding elbows, punching elbows, push elbows, casting elbows, etc. Other names: 90 degree elbow, right angle bend, love and bend. Plugs, also known as caps, caps, pipe caps, bulkheads, are fitted to the external threads of the pipe end to cover the pipe fittings. It is used to close the pipeline and has the same function as the pipe plug. It can be directly screwed on the pipe without other pipe fittings. The plug includes a convex plug, a cone shell, a variable diameter section, a flat cover and a shrinkage opening. <br> Use and introduction of elbow<br> The purpose of the elbow; that is, the object used when the pipe needs to turn, regardless of whether the pipe needs to travel in any direction, the elbow is used to change the direction<br>
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