40 inch ASME B16.47 Series A Flange Dimensions
40 inch (DN 1000) to ASME B16.47: OD 1290 mm; thickness 88.9 mm; hub 1041 mm; pipe OD 1016.0 mm; length 162 mm.
Key to dimensions
- O
- Outside diameter of flange
- tf
- Minimum thickness of weld neck and of blind flange, excluding the raised face
- X
- Hub diameter at base
- A
- Hub diameter at the welding end
- Y
- Length through hub, excluding the raised face
- R
- Diameter of raised face
- W
- Bolt circle diameter
- Holes
- Number and diameter of bolt holes
40 inch ASME B16.47 Series A Flange Dimensions — all dimensions
Series A Class 150 (mm)
| Dimension | Value | Equivalent |
|---|---|---|
| DN | 1000 | |
| Outside dia — O | 1290 mm | 50.79 in |
| Weld neck — tf | 88.9 mm | 3.50 in |
| Blind — tf | 88.9 mm | 3.50 in |
| Hub dia — X | 1041 mm | 40.98 in |
| Hub at weld — A | 1016.0 mm | 40.00 in |
| Length thru hub — Y | 162 mm | 6.38 in |
| Raised face dia — R | 1124 mm | 44.25 in |
| Bolt circle — W | 1200.2 mm | 47.25 in |
| Number of holes | 36 | |
| Hole dia | 41.3 mm | 1.63 in |
| Bolt size | 1½" |
Series A Class 300 (mm)
| Dimension | Value | Equivalent |
|---|---|---|
| DN | 1000 | |
| Outside dia — O | 1240 mm | 48.82 in |
| Weld neck — tf | 112.8 mm | 4.44 in |
| Blind — tf | 112.8 mm | 4.44 in |
| Hub dia — X | 1048 mm | 41.26 in |
| Hub at weld — A | 1016.0 mm | 40.00 in |
| Length thru hub — Y | 192 mm | 7.56 in |
| Raised face dia — R | 1086 mm | 42.76 in |
| Bolt circle — W | 1155.7 mm | 45.50 in |
| Number of holes | 32 | |
| Hole dia | 44.5 mm | 1.75 in |
| Bolt size | 1⅝" |
Series A Class 600 (mm)
| Dimension | Value | Equivalent |
|---|---|---|
| DN | 1000 | |
| Outside dia — O | 1320 mm | 51.97 in |
| Weld neck — tf | 158.8 mm | 6.25 in |
| Blind — tf | 162.0 mm | 6.38 in |
| Hub dia — X | 1073 mm | 42.24 in |
| Hub at weld — A | 1016.0 mm | 40.00 in |
| Length thru hub — Y | 264 mm | 10.39 in |
| Raised face dia — R | 1111 mm | 43.74 in |
| Bolt circle — W | 1212.8 mm | 47.75 in |
| Number of holes | 32 | |
| Hole dia | 60.3 mm | 2.37 in |
| Bolt size | 2¼" |
Values are nominal, from ASME B16.47 Series A Flange Dimensions. Verify critical dimensions against the current edition of the standard before design, purchase or fabrication.
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FAQ
40 inch ASME B16.47 Series A Flange Dimensions: common questions
What are the 40 inch ASME B16.47 Series A Flange Dimensions?
40 inch (DN 1000) to ASME B16.47: OD 1290 mm; thickness 88.9 mm; hub 1041 mm; pipe OD 1016.0 mm; length 162 mm.
Does Teshi Group manufacture 40 inch flanges?
Yes. Teshi Group is an OEM manufacturer in India of flanges to ASME B16.47, in carbon, alloy, stainless, duplex, super duplex, nickel alloys, titanium and Cu-Ni, with EN 10204 3.1 certificates.
Can I download the 40 inch dimensions as a PDF?
Yes. Use “Download PDF for this size” on this page to get a single-size, print-ready PDF with the drawing and every tabulated dimension, or download the full ASME B16.47 Series A Flange Dimensions chart.
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