1 1/2 inch BS 10 Table S Flange Dimensions
1 1/2 inch (DN 40) to BS 10: OD 159 mm; thickness 28.6 mm; PCD 121 mm; bolts 4; holes 22 mm.
Key to dimensions
- D
- Outside diameter of flange
- C
- Flange thickness, excluding raised face unless stated
- K
- Bolt circle (pitch circle) diameter
- n
- Number of bolts
- L
- Bolt hole diameter
- Bolt
- Bolt size (metric M or inch diameter)
1 1/2 inch BS 10 Table S Flange Dimensions — all dimensions
BS 10 Table S — flange dimensions
| Dimension | Value | Equivalent |
|---|---|---|
| Size | 40 | |
| Flange OD — D | 159 mm | 6.26 in |
| Flange — C | 28.6 mm | 1.13 in |
| Bolt circle — K | 121 mm | 4.76 in |
| Number of bolts | 4 | |
| Hole dia — L | 22 mm | 0.866 in |
| Bolt size | 3/4 | |
| Bolt dia | 19 |
Values are nominal, from BS 10 Table S Flange Dimensions. Verify critical dimensions against the current edition of the standard before design, purchase or fabrication.
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1 1/2 inch BS 10 Table S Flange Dimensions: common questions
What are the 1 1/2 inch BS 10 Table S Flange Dimensions?
1 1/2 inch (DN 40) to BS 10: OD 159 mm; thickness 28.6 mm; PCD 121 mm; bolts 4; holes 22 mm.
Does Teshi Group manufacture 1 1/2 inch flanges?
Yes. Teshi Group is an OEM manufacturer in India of flanges to BS 10, in carbon, alloy, stainless, duplex, super duplex, nickel alloys, titanium and Cu-Ni, with EN 10204 3.1 certificates.
Can I download the 1 1/2 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 BS 10 Table S Flange Dimensions chart.
Need 1 1/2 inch flanges?
Teshi Group manufactures them in India — send your size, rating and material and get a quote in 24–48 hours.
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