DN 1000 IS 9523 Flange Dimensions — Plate & Blind, PN 10 to PN 40
DN 1000 (40") to IS 9523: OD 1230 mm; PCD 1160 mm; bolts 28; holes 37 mm; raised face 1112 mm.
Key to dimensions
- D
- Outside diameter of flange
- B
- Bore (inside diameter) of plate flange
- C
- Flange thickness — plate or blind, raised face (RF) or flat face (FF)
- K
- Bolt circle (pitch circle) diameter
- n
- Number of bolt holes
- L
- Bolt hole diameter
- d1
- Raised face diameter
- f
- Raised face height
DN 1000 IS 9523 Flange Dimensions — Plate & Blind, PN 10 to PN 40 — all dimensions
IS 9523 PN 10 — plate and blind flange (mm)
| Dimension | Value | Equivalent |
|---|---|---|
| Flange OD — D | 1230 mm | 48.43 in |
| Bolt circle — K | 1160 mm | 45.67 in |
| Number of bolts | 28 | |
| Hole dia — L | 37 mm | 1.46 in |
| Raised face — d1 | 1112 mm | 43.78 in |
| RF height — f | 5 mm | 0.197 in |
| Bore — B | 1019 mm | 40.12 in |
| Plate, RF — C | 40 mm | 1.57 in |
| Plate, FF — C | 35 mm | 1.38 in |
| Blind, RF — C | 40 mm | 1.57 in |
| Blind, FF — C | 35 mm | 1.38 in |
IS 9523 PN 16 — plate and blind flange (mm)
| Dimension | Value | Equivalent |
|---|---|---|
| Flange OD — D | 1255 mm | 49.41 in |
| Bolt circle — K | 1170 mm | 46.06 in |
| Number of bolts | 28 | |
| Hole dia — L | 43 mm | 1.69 in |
| Raised face — d1 | 1112 mm | 43.78 in |
| RF height — f | 5 mm | 0.197 in |
| Bore — B | 1019 mm | 40.12 in |
| Plate, RF — C | 50 mm | 1.97 in |
| Plate, FF — C | 45 mm | 1.77 in |
| Blind, RF — C | 50 mm | 1.97 in |
| Blind, FF — C | 45 mm | 1.77 in |
IS 9523 PN 25 — plate and blind flange (mm)
| Dimension | Value | Equivalent |
|---|---|---|
| Flange OD — D | 1320 mm | 51.97 in |
| Bolt circle — K | 1210 mm | 47.64 in |
| Number of bolts | 28 | |
| Hole dia — L | 56 mm | 2.20 in |
| Raised face — d1 | 1140 mm | 44.88 in |
| RF height — f | 5 mm | 0.197 in |
| Bore — B | 1019 mm | 40.12 in |
| Plate, RF — C | 60 mm | 2.36 in |
| Plate, FF — C | 55 mm | 2.17 in |
| Blind, RF — C | 60 mm | 2.36 in |
| Blind, FF — C | 55 mm | 2.17 in |
Values are nominal, from IS 9523 Flange Dimensions — Plate & Blind, PN 10 to PN 40. Verify critical dimensions against the current edition of the standard before design, purchase or fabrication.
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FAQ
DN 1000 IS 9523 Flange Dimensions — Plate & Blind, PN 10 to PN 40: common questions
What are the DN 1000 IS 9523 Flange Dimensions — Plate & Blind, PN 10 to PN 40?
DN 1000 (40") to IS 9523: OD 1230 mm; PCD 1160 mm; bolts 28; holes 37 mm; raised face 1112 mm.
Does Teshi Group manufacture DN 1000 flanges?
Yes. Teshi Group is an OEM manufacturer in India of flanges to IS 9523, in carbon, alloy, stainless, duplex, super duplex, nickel alloys, titanium and Cu-Ni, with EN 10204 3.1 certificates.
Can I download the DN 1000 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 9523 Flange Dimensions — Plate & Blind, PN 10 to PN 40 chart.
Need DN 1000 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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