A Pipe bend (hot induction pipe bend) is a pipe fitting which is used to achieve a change in pipe direction or flow direction. The pipe bends usually have a bending radius more than 1.5 times pipe diameters. If this bending radius is less than 1.5R, it is called Elbow. 2.5D, 3D & 5D are the most popular bending radius in piping industry, commonly the degree is 90°or 45°. Haihao also can manufacture the custom radius and custom degrees hot induction bend .
In our steel pipe fittings system, the pipe bend commonly means the hot induction bend which is produced in the method of hot induction bending, it is a different manufacture method with the standard steel elbow.
If a pipe bend with tangent length , it (tangent pipe bend) means this bend has the straight pipe length in the ends . Commonly a hot induction pipe bend should has some straight length in the end , the length of this tangent can be customized as per the piping system design . This tangent length will make it easier for the bend to weld with pipes .
A pipe bend without tangent, means there is no straight length in the end of this bend . it will look like a elbow of different bending radius. Since there is no straight length in the end , the field welding between the bends and the pipes should be taken care . you can find tangent pipe (pipe bend with tangent) to compare with the pipe bend without tangent.
The hot induction bends are used a lot in the pipeline of oil &gas projects, they require a sample bend to test in advance, verify and proof this Bending Procedure is acceptable. The bend is formed when passing a length of straight pipe (mother pipe) through a hot induction bending machine. There is an induction coil which can heat a narrow band of this length of pipe. The pipe end is clamped by a pivot arm. when this pipe is pushed through the heating coil, the pipe become a bend with the radius designed by machine arm.
Hot Induction Pipe Bend
|WALL THICKNESS (T)
|STRAIGHT LENGTH (L)
|The straight pipe length(tangent length) with two ends general from 100mm-600mm, and also can produce the length according to the clients’ requirement.
|BENDING RADIUS (R)
|BENDING ANGLE (θ)
|15°, 30°,45°,60°,90°,135°,180°or any other degree as per request
|ASME/ANSI B16.49, MSS-SP-75
|ASTM A234 WPB.A420-WPL6. 304L 316L 321, API 5L/ISO 3183 Gr.B, X42, X46, X52, X56, X60, X65, X70, EN10208 L245,L290, L320, L360, L390, L415, L450, L485.
|wooden case, pallet or as customers’ requirement
Haihao pipe fitting factory would produce and supply the high quality pipe fitting products as per clients’ requirement.
We sincerely welcome customers domestic and abroad to visit us for cooperation and development.
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