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Industry Standard Class 175 Welding Neck Flanges
Industry Standard Class 175 Flanges
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- All dimensions are in inches.
- These flanges will be furnished with a 1/16" raised face unless otherwise specified.
- Flat face option available.
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Item # |
Nominal Pipe Size |
Outside Diameter (O) |
Thickness (T) |
Raised Face Diameter (R) |
Length Thru Hub (Y) |
Diameter of Hub at Bevel (A) |
Base of Hub Diameter (X) |
Bore (B) |
Approximate Weight |
Bolt Circle (C) |
Number of Holes |
Diameter of Bolt Holes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 26175WNIS | Nominal Pipe Size N/A 26 | Outside Diameter (O) N/A 31.50 in | Thickness (T) N/A 1.38 in | Raised Face Diameter (R) N/A 29.00 in | Length Thru Hub (Y) N/A 3.38 in | Diameter of Hub at Bevel (A) N/A Specified by purchaser | Base of Hub Diameter (X) N/A 27.63 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 120 lb | Bolt Circle (C) N/A 29.88 in | Number of Holes N/A 28 | Diameter of Bolt Holes N/A 0.88 in |
| 28175WNIS | Nominal Pipe Size N/A 28 | Outside Diameter (O) N/A 33.50 in | Thickness (T) N/A 1.38 in | Raised Face Diameter (R) N/A 31.00 in | Length Thru Hub (Y) N/A 3.38 in | Diameter of Hub at Bevel (A) N/A Specified by purchaser | Base of Hub Diameter (X) N/A 29.63 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 130 lb | Bolt Circle (C) N/A 31.88 in | Number of Holes N/A 28 | Diameter of Bolt Holes N/A 0.88 in |
| 30175WNIS | Nominal Pipe Size N/A 30 | Outside Diameter (O) N/A 35.75 in | Thickness (T) N/A 1.38 in | Raised Face Diameter (R) N/A 33.25 in | Length Thru Hub (Y) N/A 3.63 in | Diameter of Hub at Bevel (A) N/A Specified by purchaser | Base of Hub Diameter (X) N/A 31.88 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 150 lb | Bolt Circle (C) N/A 34.13 in | Number of Holes N/A 36 | Diameter of Bolt Holes N/A 0.88 in |
| 32175WNIS | Nominal Pipe Size N/A 32 | Outside Diameter (O) N/A 37.75 in | Thickness (T) N/A 1.38 in | Raised Face Diameter (R) N/A 35.25 in | Length Thru Hub (Y) N/A 3.63 in | Diameter of Hub at Bevel (A) N/A Specified by purchaser | Base of Hub Diameter (X) N/A 33.88 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 160 lb | Bolt Circle (C) N/A 36.13 in | Number of Holes N/A 36 | Diameter of Bolt Holes N/A 0.88 in |
| 34175WNIS | Nominal Pipe Size N/A 34 | Outside Diameter (O) N/A 40.25 in | Thickness (T) N/A 1.50 in | Raised Face Diameter (R) N/A 37.38 in | Length Thru Hub (Y) N/A 3.75 in | Diameter of Hub at Bevel (A) N/A Specified by purchaser | Base of Hub Diameter (X) N/A 35.88 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 195 lb | Bolt Circle (C) N/A 38.38 in | Number of Holes N/A 36 | Diameter of Bolt Holes N/A 1.00 in |
| 36175WNIS | Nominal Pipe Size N/A 36 | Outside Diameter (O) N/A 42.25 in | Thickness (T) N/A 1.50 in | Raised Face Diameter (R) N/A 39.38 in | Length Thru Hub (Y) N/A 3.75 in | Diameter of Hub at Bevel (A) N/A Specified by purchaser | Base of Hub Diameter (X) N/A 37.88 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 205 lb | Bolt Circle (C) N/A 40.38 in | Number of Holes N/A 36 | Diameter of Bolt Holes N/A 1.00 in |
| 38175WNIS | Nominal Pipe Size N/A 38 | Outside Diameter (O) N/A 44.25 in | Thickness (T) N/A 1.75 in | Raised Face Diameter (R) N/A 41.38 in | Length Thru Hub (Y) N/A 4.13 in | Diameter of Hub at Bevel (A) N/A Specified by purchaser | Base of Hub Diameter (X) N/A 39.88 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 245 lb | Bolt Circle (C) N/A 42.38 in | Number of Holes N/A 36 | Diameter of Bolt Holes N/A 1.00 in |
| 40175WNIS | Nominal Pipe Size N/A 40 | Outside Diameter (O) N/A 46.25 in | Thickness (T) N/A 1.75 in | Raised Face Diameter (R) N/A 43.38 in | Length Thru Hub (Y) N/A 4.13 in | Diameter of Hub at Bevel (A) N/A Specified by purchaser | Base of Hub Diameter (X) N/A 41.88 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 255 lb | Bolt Circle (C) N/A 44.38 in | Number of Holes N/A 40 | Diameter of Bolt Holes N/A 1.00 in |
| 42175WNIS | Nominal Pipe Size N/A 42 | Outside Diameter (O) N/A 49.00 in | Thickness (T) N/A 2.00 in | Raised Face Diameter (R) N/A 45.75 in | Length Thru Hub (Y) N/A 4.50 in | Diameter of Hub at Bevel (A) N/A Specified by purchaser | Base of Hub Diameter (X) N/A 44.13 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 340 lb | Bolt Circle (C) N/A 46.88 in | Number of Holes N/A 40 | Diameter of Bolt Holes N/A 1.13 in |
| 44175WNIS | Nominal Pipe Size N/A 44 | Outside Diameter (O) N/A 51.00 in | Thickness (T) N/A 2.00 in | Raised Face Diameter (R) N/A 47.75 in | Length Thru Hub (Y) N/A 4.50 in | Diameter of Hub at Bevel (A) N/A Specified by purchaser | Base of Hub Diameter (X) N/A 46.13 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 360 lb | Bolt Circle (C) N/A 48.88 in | Number of Holes N/A 40 | Diameter of Bolt Holes N/A 1.13 in |
| 46175WNIS | Nominal Pipe Size N/A 46 | Outside Diameter (O) N/A 53.00 in | Thickness (T) N/A 2.00 in | Raised Face Diameter (R) N/A 49.75 in | Length Thru Hub (Y) N/A 4.50 in | Diameter of Hub at Bevel (A) N/A Specified by purchaser | Base of Hub Diameter (X) N/A 48.13 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 375 lb | Bolt Circle (C) N/A 50.88 in | Number of Holes N/A 40 | Diameter of Bolt Holes N/A 1.13 in |
| 48175WNIS | Nominal Pipe Size N/A 48 | Outside Diameter (O) N/A 55.00 in | Thickness (T) N/A 2.25 in | Raised Face Diameter (R) N/A 51.75 in | Length Thru Hub (Y) N/A 4.88 in | Diameter of Hub at Bevel (A) N/A Specified by purchaser | Base of Hub Diameter (X) N/A 50.13 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 430 lb | Bolt Circle (C) N/A 52.88 in | Number of Holes N/A 44 | Diameter of Bolt Holes N/A 1.13 in |
| 50175WNIS | Nominal Pipe Size N/A 50 | Outside Diameter (O) N/A 57.00 in | Thickness (T) N/A 2.25 in | Raised Face Diameter (R) N/A 53.75 in | Length Thru Hub (Y) N/A 4.88 in | Diameter of Hub at Bevel (A) N/A Specified by purchaser | Base of Hub Diameter (X) N/A 52.13 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 450 lb | Bolt Circle (C) N/A 54.88 in | Number of Holes N/A 44 | Diameter of Bolt Holes N/A 1.13 in |
| 52175WNIS | Nominal Pipe Size N/A 52 | Outside Diameter (O) N/A 59.50 in | Thickness (T) N/A 2.63 in | Raised Face Diameter (R) N/A 56.00 in | Length Thru Hub (Y) N/A 5.38 in | Diameter of Hub at Bevel (A) N/A Specified by purchaser | Base of Hub Diameter (X) N/A 54.25 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 560 lb | Bolt Circle (C) N/A 57.25 in | Number of Holes N/A 44 | Diameter of Bolt Holes N/A 1.25 in |
| 54175WNIS | Nominal Pipe Size N/A 54 | Outside Diameter (O) N/A 61.50 in | Thickness (T) N/A 2.63 in | Raised Face Diameter (R) N/A 58.00 in | Length Thru Hub (Y) N/A 5.38 in | Diameter of Hub at Bevel (A) N/A Specified by purchaser | Base of Hub Diameter (X) N/A 56.25 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 580 lb | Bolt Circle (C) N/A 59.25 in | Number of Holes N/A 44 | Diameter of Bolt Holes N/A 1.25 in |
| 60175WNIS | Nominal Pipe Size N/A 60 | Outside Diameter (O) N/A 67.50 in | Thickness (T) N/A 2.75 in | Raised Face Diameter (R) N/A 64.00 in | Length Thru Hub (Y) N/A 5.75 in | Diameter of Hub at Bevel (A) N/A Specified by purchaser | Base of Hub Diameter (X) N/A 62.25 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 680 lb | Bolt Circle (C) N/A 65.25 in | Number of Holes N/A 48 | Diameter of Bolt Holes N/A 1.25 in |
| 66175WNIS | Nominal Pipe Size N/A 66 | Outside Diameter (O) N/A 73.50 in | Thickness (T) N/A 3.13 in | Raised Face Diameter (R) N/A 70.00 in | Length Thru Hub (Y) N/A 6.13 in | Diameter of Hub at Bevel (A) N/A Specified by purchaser | Base of Hub Diameter (X) N/A 68.50 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 830 lb | Bolt Circle (C) N/A 71.25 in | Number of Holes N/A 56 | Diameter of Bolt Holes N/A 1.25 in |
| 72175WNIS | Nominal Pipe Size N/A 72 | Outside Diameter (O) N/A 80.00 in | Thickness (T) N/A 3.63 in | Raised Face Diameter (R) N/A 76.50 in | Length Thru Hub (Y) N/A 6.63 in | Diameter of Hub at Bevel (A) N/A Specified by purchaser | Base of Hub Diameter (X) N/A 74.50 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 1075 lb | Bolt Circle (C) N/A 77.75 in | Number of Holes N/A 64 | Diameter of Bolt Holes N/A 1.25 in |
| 84175WNIS | Nominal Pipe Size N/A 84 | Outside Diameter (O) N/A 94.00 in | Thickness (T) N/A 3.00 in | Raised Face Diameter (R) N/A 90.13 in | Length Thru Hub (Y) N/A 7.00 in | Diameter of Hub at Bevel (A) N/A Specified by purchaser | Base of Hub Diameter (X) N/A 88.00 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 1550 lb | Bolt Circle (C) N/A 91.50 in | Number of Holes N/A 72 | Diameter of Bolt Holes N/A 1.38 in |
| 96175WNIS | Nominal Pipe Size N/A 96 | Outside Diameter (O) N/A 106.00 in | Thickness (T) N/A 3.50 in | Raised Face Diameter (R) N/A 102.13 in | Length Thru Hub (Y) N/A 7.50 in | Diameter of Hub at Bevel (A) N/A Specified by purchaser | Base of Hub Diameter (X) N/A 100.00 in | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 1950 lb | Bolt Circle (C) N/A 103.50 in | Number of Holes N/A 88 | Diameter of Bolt Holes N/A 1.38 in |
