DN 800 IS 1538 Flange Dimensions (Cast Iron Fittings)
DN 800 (32") to IS 1538: OD 1015 mm; thickness 41.5 mm; PCD 950 mm; bolts 24; holes 34 mm.
Key to dimensions
- D
- Outside diameter of flange
- C
- Flange thickness, excluding raised face unless stated
- d1
- Raised face diameter
- f
- Raised face height
- K
- Bolt circle (pitch circle) diameter
- n
- Number of bolts
- L
- Bolt hole diameter
- Bolt
- Bolt size (metric M or inch diameter)
DN 800 IS 1538 Flange Dimensions (Cast Iron Fittings) — all dimensions
IS 1538 Tables 4 & 6 — flanges of pipes and fittings: dimensions and standard drilling
| Dimension | Value | Equivalent |
|---|---|---|
| Flange OD — D | 1015 mm | 39.96 in |
| Flange — C | 41.5 mm | 1.63 in |
| Bolt circle — K | 950 mm | 37.40 in |
| Number of bolts | 24 | |
| Hole dia — L | 34 mm | 1.34 in |
| Bolt dia | 30 |
IS 1538 Table 5 — raised flanges
| Dimension | Value | Equivalent |
|---|---|---|
| Flange OD — D | 1015 mm | 39.96 in |
| Raised face — d1 | 904 mm | 35.59 in |
| Incl. raised face — C | 46.5 mm | 1.83 in |
| Flange — C | 41.5 mm | 1.63 in |
| RF height — f | 5 mm | 0.197 in |
| Bolt circle — K | 950 mm | 37.40 in |
| Number of bolts | 24 | |
| Hole dia — L | 34 mm | 1.34 in |
| Bolt dia | 30 |
IS 1538 Table 21 — double flanged 1/4 (90°) bends
| Dimension | Value | Equivalent |
|---|---|---|
| Wall thickness — e | 26.8 mm | 1.06 in |
| Bend radius — r | 785 mm | 30.91 in |
| Straight — a | 115 mm | 4.53 in |
| Centre to face — b | 900 mm | 35.43 in |
| Mass approx. — kg | 890 mm | 35.04 in |
Values are nominal, from IS 1538 Flange Dimensions (Cast Iron Fittings). Verify critical dimensions against the current edition of the standard before design, purchase or fabrication.
Find another size or standard
Pick a product, standard and size — or just type — to see every dimension and download a watermarked PDF for that one size.
FAQ
DN 800 IS 1538 Flange Dimensions (Cast Iron Fittings): common questions
What are the DN 800 IS 1538 Flange Dimensions (Cast Iron Fittings)?
DN 800 (32") to IS 1538: OD 1015 mm; thickness 41.5 mm; PCD 950 mm; bolts 24; holes 34 mm.
Does Teshi Group manufacture DN 800 flanges?
Yes. Teshi Group is an OEM manufacturer in India of flanges to IS 1538, in carbon, alloy, stainless, duplex, super duplex, nickel alloys, titanium and Cu-Ni, with EN 10204 3.1 certificates.
Can I download the DN 800 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 IS 1538 Flange Dimensions (Cast Iron Fittings) chart.
Need DN 800 flanges?
Teshi Group manufactures them in India — send your size, rating and material and get a quote in 24–48 hours.
Ready to build to spec?
Share your drawing, bill of materials or technical requirements with the Teshi team.