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Industry Standard Class 250 Welding Neck Flanges
Industry Standard Class 250 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) |
Base of Hub Diameter (X) |
Diameter of Hub at Bevel (A) |
Bore (B) |
Approximate Weight |
Bolt Circle (C) |
Number of Holes |
Diameter of Bolt Holes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 26250WNIS | Nominal Pipe Size N/A 26 | Outside Diameter (O) N/A 38.25 in | Thickness (T) N/A 2.81 in | Raised Face Diameter (R) N/A 32.44 in | Length Thru Hub (Y) N/A 5.81 in | Base of Hub Diameter (X) N/A 30.50 in | Diameter of Hub at Bevel (A) N/A | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 530 lb | Bolt Circle (C) N/A 34.50 in | Number of Holes N/A 28 | Diameter of Bolt Holes N/A 1.88 in |
| 28250WNIS | Nominal Pipe Size N/A 28 | Outside Diameter (O) N/A 40.75 in | Thickness (T) N/A 2.94 in | Raised Face Diameter (R) N/A 34.94 in | Length Thru Hub (Y) N/A 5.94 in | Base of Hub Diameter (X) N/A 33.00 in | Diameter of Hub at Bevel (A) N/A | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 630 lb | Bolt Circle (C) N/A 37.00 in | Number of Holes N/A 28 | Diameter of Bolt Holes N/A 1.88 in |
| 30250WNIS | Nominal Pipe Size N/A 30 | Outside Diameter (O) N/A 43.00 in | Thickness (T) N/A 3.00 in | Raised Face Diameter (R) N/A 37.19 in | Length Thru Hub (Y) N/A 6.00 in | Base of Hub Diameter (X) N/A 35.25 in | Diameter of Hub at Bevel (A) N/A | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 700 lb | Bolt Circle (C) N/A 39.25 in | Number of Holes N/A 28 | Diameter of Bolt Holes N/A 1.88 in |
| 32250WNIS | Nominal Pipe Size N/A 32 | Outside Diameter (O) N/A 45.25 in | Thickness (T) N/A 3.12 in | Raised Face Diameter (R) N/A 39.44 in | Length Thru Hub (Y) N/A 6.13 in | Base of Hub Diameter (X) N/A 37.50 in | Diameter of Hub at Bevel (A) N/A | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 790 lb | Bolt Circle (C) N/A 41.50 in | Number of Holes N/A 28 | Diameter of Bolt Holes N/A 1.88 in |
| 34250WNIS | Nominal Pipe Size N/A 34 | Outside Diameter (O) N/A 47.50 in | Thickness (T) N/A 3.25 in | Raised Face Diameter (R) N/A 41.44 in | Length Thru Hub (Y) N/A 6.25 in | Base of Hub Diameter (X) N/A 39.50 in | Diameter of Hub at Bevel (A) N/A | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 880 lb | Bolt Circle (C) N/A 43.50 in | Number of Holes N/A 28 | Diameter of Bolt Holes N/A 1.88 in |
| 36250WNIS | Nominal Pipe Size N/A 36 | Outside Diameter (O) N/A 50.00 in | Thickness (T) N/A 3.38 in | Raised Face Diameter (R) N/A 43.69 in | Length Thru Hub (Y) N/A 6.38 in | Base of Hub Diameter (X) N/A 41.50 in | Diameter of Hub at Bevel (A) N/A | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 970 lb | Bolt Circle (C) N/A 46.00 in | Number of Holes N/A 32 | Diameter of Bolt Holes N/A 2.13 in |
| 38250WNIS | Nominal Pipe Size N/A 38 | Outside Diameter (O) N/A 52.25 in | Thickness (T) N/A 3.44 in | Raised Face Diameter (R) N/A 45.69 in | Length Thru Hub (Y) N/A 6.44 in | Base of Hub Diameter (X) N/A 43.50 in | Diameter of Hub at Bevel (A) N/A | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 1050 lb | Bolt Circle (C) N/A 48.00 in | Number of Holes N/A 32 | Diameter of Bolt Holes N/A 2.13 in |
| 40250WNIS | Nominal Pipe Size N/A 40 | Outside Diameter (O) N/A 54.50 in | Thickness (T) N/A 3.56 in | Raised Face Diameter (R) N/A 47.94 in | Length Thru Hub (Y) N/A 6.56 in | Base of Hub Diameter (X) N/A 45.75 in | Diameter of Hub at Bevel (A) N/A | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 1150 lb | Bolt Circle (C) N/A 50.25 in | Number of Holes N/A 36 | Diameter of Bolt Holes N/A 2.13 in |
| 42250WNIS | Nominal Pipe Size N/A 42 | Outside Diameter (O) N/A 57.00 in | Thickness (T) N/A 3.69 in | Raised Face Diameter (R) N/A 50.44 in | Length Thru Hub (Y) N/A 6.94 in | Base of Hub Diameter (X) N/A 47.75 in | Diameter of Hub at Bevel (A) N/A | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 1325 lb | Bolt Circle (C) N/A 52.75 in | Number of Holes N/A 36 | Diameter of Bolt Holes N/A 2.13 in |
| 44250WNIS | Nominal Pipe Size N/A 44 | Outside Diameter (O) N/A 59.25 in | Thickness (T) N/A 3.75 in | Raised Face Diameter (R) N/A 52.69 in | Length Thru Hub (Y) N/A 7.00 in | Base of Hub Diameter (X) N/A 49.75 in | Diameter of Hub at Bevel (A) N/A | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 1425 lb | Bolt Circle (C) N/A 55.00 in | Number of Holes N/A 36 | Diameter of Bolt Holes N/A 2.13 in |
| 46250WNIS | Nominal Pipe Size N/A 46 | Outside Diameter (O) N/A 61.50 in | Thickness (T) N/A 3.88 in | Raised Face Diameter (R) N/A 54.94 in | Length Thru Hub (Y) N/A 7.13 in | Base of Hub Diameter (X) N/A 51.75 in | Diameter of Hub at Bevel (A) N/A | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 1525 lb | Bolt Circle (C) N/A 57.25 in | Number of Holes N/A 40 | Diameter of Bolt Holes N/A 2.13 in |
| 48250WNIS | Nominal Pipe Size N/A 48 | Outside Diameter (O) N/A 65.00 in | Thickness (T) N/A 4.00 in | Raised Face Diameter (R) N/A 58.44 in | Length Thru Hub (Y) N/A 7.25 in | Base of Hub Diameter (X) N/A 54.00 in | Diameter of Hub at Bevel (A) N/A | Bore (B) N/A Specified by purchaser | Approximate Weight N/A 1825 lb | Bolt Circle (C) N/A 60.75 in | Number of Holes N/A 40 | Diameter of Bolt Holes N/A 2.13 in |
