MITER BEND, 90D, 1.5D, API 5L Gr. B.
Name: 90D Miter Bend 1.5D.
Size: 90".
Radius: 1.5D.
Thickness: 18.00MM.
End: BW.
Material: API 5L Gr. B.
Type: Welded.
Standard: ASME B16.9/AWWA C208.
AWWA Recomends:
22.5< to ≤ 45, use 3 pieces
45 < to ≤ 67.5, use 4 pieces
67.5 < to ≤ 90, use 5 pieces
Bend | Steel e = 0.05 mm |
Spiral Weld Steel e = 0.1 mm |
---|---|---|
Threaded Bend | ||
90° Bend, r/d=1 | 30 | 26 |
Welded Bend | ||
90° Bend, sharp bend | 55 | 49 |
90° Bend, r/d=1 | 19 | 16 |
90° Bend, r/d=1.5 | 13 | 12 |
90° Bend, r/d=2 | 11 | 10 |
90 Degree Miter Bend | Miter 90 Degree Round Bend |
3 Piece 90 Degree Miter Bend | Miter 90 Degree Joint Bend |
Miter 90 Pipe Bend | Miter 90 Degree Reducing Bend |
Miter Exhaust Bend | Miter 90 Degree Cut Bend |
90 Degree Round Duct Miter Bend | ASME B31.3 Miter 90 Degree Bend |
90 Degree Rectangular Miter Bend | 90 Degree Long Radius Miter Bend |
Weight = 2*R*n*tan(alfa/(2*n))*W, where
R = bend radius at end (=circumscribed)
n = number of miter joints
alfa = bend angle (total)
W = Unit weight of pipe (kg/m or lb/ft)
In above pic, dotted lines shows where the pipe should be cut. Each dotted cut line has a vertical reference line marked at following distances from pipe end.
Given a formula to make 90 degree miter bend of 10" size with Bend center radius same as standard Bend i.e. 381 mm.
Input values:
NOM. DIA |
A Min. | R Radius |
S Inches |
M |
---|---|---|---|---|
30 | 42w" | 45" | 17p" | |
32 | 44s" | 48" | 18s" | |
34 | 47r" | 51" | 19f" | |
36 | 49f" | 54" | 21w" | |
38 | 52i" | 57" | 22r" | |
40 | 55w" | 60" | 23i" | |
42 | 57s" | 63" | 24p" | 8r" |
44 | 60r" | 66" | 25s" | |
46 | 62f" | 69" | 27" | |
48 | 65i" | 72" | 28i" | 9p" |
50 | 68w" | 75" | 29r" | |
52 | 70s" | 78" | 30i" | |
54 | 73r" | 81" | 31p" | 10f" |
56 | 75f" | 84" | 32f" | |
58 | 78i" | 87" | 34" | |
60 | 81w" | 90" | 35w" | |
62 | 83s" | 93" | 36y" | |
64 | 86y" | 96" | 37i" | |
66 | 88f" | 99" | 38p" | |
68 | 91i" | 102" | 39f" | |
70 | 94w" | 105" | 41" | |
72 | 96s" | 108" | 42r" | |
78 | 104i" | 117" | 45s" | 15r" |
84 | 112y" | 126" | 49i" | |
86 | 115" | 129" | 50y" |
Notes:
ASME B31.3 90 degree miter bend
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