Flange pipe joint , Assembly of Flange pipe joint.

Описание: In this type of joint, both the hollow cylindrical pipes have a projected circular ring/ flared rim on their ends, which is known as 'flange'. It serves to hold the pipe in place, give it strength, and also attach to another flange. The flanges are made thicker than the pipe-walls for strength. Greater strength may be required when pressure is high; so the thickness of the pipe-walls is increased for short lengths in steps. We also know pipes carry liquids and gases and they need to be tight and leak-proof. In order to do so, a mechanism similar to the one, we use in pressure cookers is utilized i.e., here also we have a similar thin circular packing ring/gasket of soft material, such as Indian rubber, canvas, etc. coated with red lead. This is placed between the faces of the two flanges. For perfect alignment, these faces are machined at a right angle to the axes of the pipes. Then these flanges with the gasket in between are connected together by means of nuts and bolts, which are fitted through the holes in the flanges. (The bolts and nuts may be square-headed or hexagonal-headed in shape.)
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