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Hebei haihao high pressure flange & pipe fitting group was established in 1982, located in Mengcun County the hometown of pipe fittings in China.

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Small Dimension Welded Elbow Manufacturing Method:Pressing Stereotype

Small Dimension Welded Elbow

Small Dimension Welded Elbow

The function of a elbow is to change direction or flow in a piping system. By default, there are 5 opportunities, the 45°, 90° and 180° elbows, all three in the “long radius” version, and in addition the 90° and 180° elbows both in the “short radius” version.

Long and Short Radius Elbow

Elbows are split into two groups which define the distance over which they change direction; the center line of one end to the opposite face. This is known as the “center to face” distance and is equivalent to the radius through which the elbow is bent.
The center to face distance for a “long” radius elbow, abbreviated LR always is “1.1/2 x Nominal Pipe Size (NPS) (1.1/2D)”, while the center to face distance for a “short” radius elbow, abbreviated SR even is to nominal pipe size.


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