Flanged Pipe LW

Galvanized and 304SS Flanged Pipe is available in all sizes for applications requiring flanged pipe. Pipes have a laser plasma seam, which reduces leaks and internal retention of material. Flanged pipe comes in standard gauge thickness, and is available in 16 ga., or up to 12 ga. in the XD product line.
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Flanged Pipe LW is available in applications that require flanges or diameters larger than 24 inches. This flanged pipe is constructed with a laser plasma weld that provides a leak-free seal along the length of the pipe. This welding process provides many advantages over the typical lock formed seam pipe, including less air leakage and internal retention of material. The angle flange provided on the pipe, which is rotatable, is retained by a Van Stone lip, which seats the flange to the end of the pipe upon assembly. Fully welded flanges can also be supplied upon request.

Flanged Pipes LW are manufactured as follows:

  • With Galvanized or 304SS Stainless steel metal, in 20 to 22 gauge metal thickness (optionally with 18 gauge)
  • Diameter sizes 3 to 12 inch in 20 gauge and 13 to 24 inches in 22 gauge
  • Optional 18 gauge in diameter sizes 4 to 24 inches

For larger sizes and heavier gauges refer to our Flanged pipe 16 gauge, and 14, 12 gauges in the XD product line.

  • Construction: Longitudinal seam is laser welded.
  • Angle Flange can be modified to a 3/16 " thick Flat Flange (FFL) to match your hole pattern.
Size
in.
Pipe Flange
Galv.
ga.
304SS
ga.
Wgt.
lbs.
ID
in.
OD
in.
Hgt. (H)
in.
Thk. (T)
in.
ID
in.
B.C.
in.
OD
in.
Bolts
#
Hole Dia.
in.
3 22 22 5.40 3.12 3.00 1.00 0.125 3.06 4.31 5.06 6 0.281
4 22 [18] 22 [18] 7.05 3.93 3.86 1.00 0.125 4.06 5.31 6.06 6 0.281
5 22 [18] 22 [18] 9.05 4.87 4.92 1.00 0.125 5.06 6.31 7.06 6 0.281
6 22 [18] 22 [18] 10.73 5.89 5.92 1.25 0.125 6.09 7.31 8.59 6 0.281
7 22 [18] 22 [18] 15.70 6.89 6.95 1.25 0.125 7.133 8.50 9.63 6 0.375
8 22 [18, 16] 22 [18] 17.75 7.89 7.97 1.25 0.125 8.13 9.56 10.63 6 0.375
9 22 [18, 16] 22 [18] 19.92 8.88 8.98 1.25 0.125 9.13 10.63 11.63 6 0.438
10 22 [18, 16] 22 [18] 23.10 9.89 9.98 1.25 0.125 10.13 11.81 12.63 6 0.438
11 22 [18, 16] 22 [18] 25.10 10.88 10.94 1.25 0.125 11.13 12.75 13.63 6 0.438
12 22 [18, 16] 22 [18] 27.75 11.97 11.95 1.50 0.125 12.13 14.00 15.13 8 0.438
13 20 [18, 16] 20 [18] 29.90 12.97 12.94 1.50 0.125 13.13 15.00 16.13 8 0.438
14 20 [18, 16] 20 [18] 36.80 13.96 13.93 1.50 0.125 14.13 16.00 17.13 8 0.438
15 20 [18, 16] 20 [18] 44.25 14.97 14.92 1.50 0.125 15.13 17.00 18.13 8 0.438
16 20 [18, 16] 20 [18] 47.15 15.97 15.91 1.50 0.1875 16.13 18.00 19.13 8 0.438
17 20 [18, 16] 20 [18] 48.59 16.97 17.00 1.50 0.1875 17.13 19.00 20.13 8 0.438
18 20 [18, 16] 20 [18] 51.00 17.96 17.92 1.50 0.1875 18.13 20.00 21.13 8 0.438
20 20 [18, 16] 20 [18] 57.00 19.96 19.90 1.50 0.1875 20.13 21.75 23.13 12 0.438
22 20 [18, 16] 20 [18] 63.50 21.97 21.93 1.50 0.1875 22.13 23.75 25.13 12 0.438
24 20 [18, 16] 20 [18] 68.82 23.94 23.96 1.50 0.1875 24.13 25.88 27.13 12 0.438
Galvanized Gauge Metal Thickness
Gauge Inches Millimeters
22 0.0366 0.85
20 0.0396 1.01
18 0.0516 1.31
16 0.0635 1.61
Stainless Gauge Metal Thickness
Gauge Inches Millimeters
22 0.031 0.79
20 0.0375 0.95
18 0.0500 1.27
NOTES:
  1. At temperatures ranging between 390° F and 480° F, the zinc-iron alloy layers in the galvanized steel will continue to provide a high level of protection from corrosion. However, there may be some peeling, changes in mechanical properties, and reduction in the corrosion protection. Recommended maximum service temperature is 390° F.
  2. For 304 SS metal, bluing may occur at temperatures of 800° F and above.
Item Material Compliance/Rating
Flanged Pipe LW Galvanized ASTM A653 with a G-90 Rating
304 SS Finish meets ASTM A240
316 SS Finish meets ASTM A240
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