DN 1200 IS 9523 Flange Dimensions — Plate & Blind, PN 10 to PN 40
DN 1200 (48") to IS 9523: OD 1455 mm; PCD 1380 mm; bolts 32; holes 40 mm; raised face 1328 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 1200 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 | 1455 mm | 57.28 in |
| Bolt circle — K | 1380 mm | 54.33 in |
| Number of bolts | 32 | |
| Hole dia — L | 40 mm | 1.57 in |
| Raised face — d1 | 1328 mm | 52.28 in |
| RF height — f | 5 mm | 0.197 in |
| Bore — B | 1223 mm | 48.15 in |
| Plate, RF — C | 45 mm | 1.77 in |
| Plate, FF — C | 40 mm | 1.57 in |
| Blind, RF — C | 45 mm | 1.77 in |
| Blind, FF — C | 40 mm | 1.57 in |
IS 9523 PN 16 — plate and blind flange (mm)
| Dimension | Value | Equivalent |
|---|---|---|
| Flange OD — D | 1485 mm | 58.46 in |
| Bolt circle — K | 1390 mm | 54.72 in |
| Number of bolts | 32 | |
| Hole dia — L | 49 mm | 1.93 in |
| Raised face — d1 | 1328 mm | 52.28 in |
| RF height — f | 5 mm | 0.197 in |
| Bore — B | 1223 mm | 48.15 in |
| Plate, RF — C | 57 mm | 2.24 in |
| Plate, FF — C | 52 mm | 2.05 in |
| Blind, RF — C | 57 mm | 2.24 in |
| Blind, FF — C | 52 mm | 2.05 in |
IS 9523 PN 25 — plate and blind flange (mm)
| Dimension | Value | Equivalent |
|---|---|---|
| Flange OD — D | 1530 mm | 60.24 in |
| Bolt circle — K | 1420 mm | 55.91 in |
| Number of bolts | 32 | |
| Hole dia — L | 56 mm | 2.20 in |
| Raised face — d1 | 1350 mm | 53.15 in |
| RF height — f | 5 mm | 0.197 in |
| Bore — B | 1223 mm | 48.15 in |
| Plate, RF — C | 69 mm | 2.72 in |
| Plate, FF — C | 64 mm | 2.52 in |
| Blind, RF — C | 69 mm | 2.72 in |
| Blind, FF — C | 64 mm | 2.52 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 1200 IS 9523 Flange Dimensions — Plate & Blind, PN 10 to PN 40: common questions
What are the DN 1200 IS 9523 Flange Dimensions — Plate & Blind, PN 10 to PN 40?
DN 1200 (48") to IS 9523: OD 1455 mm; PCD 1380 mm; bolts 32; holes 40 mm; raised face 1328 mm.
Does Teshi Group manufacture DN 1200 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 1200 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 1200 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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