DN 125 IS 9523 Flange Dimensions — Plate & Blind, PN 10 to PN 40
DN 125 (5") to IS 9523: OD 250 mm; PCD 210 mm; bolts 8; holes 19 mm; raised face 184 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 125 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 | 250 mm | 9.84 in |
| Bolt circle — K | 210 mm | 8.27 in |
| Number of bolts | 8 | |
| Hole dia — L | 19 mm | 0.748 in |
| Raised face — d1 | 184 mm | 7.24 in |
| RF height — f | 3 mm | 0.118 in |
| Bore — B | 142.7 mm | 5.62 in |
| Plate, RF — C | 19 mm | 0.748 in |
| Plate, FF — C | 16 mm | 0.630 in |
| Blind, RF — C | 19 mm | 0.748 in |
| Blind, FF — C | 16 mm | 0.630 in |
IS 9523 PN 16 — plate and blind flange (mm)
| Dimension | Value | Equivalent |
|---|---|---|
| Flange OD — D | 250 mm | 9.84 in |
| Bolt circle — K | 210 mm | 8.27 in |
| Number of bolts | 8 | |
| Hole dia — L | 19 mm | 0.748 in |
| Raised face — d1 | 184 mm | 7.24 in |
| RF height — f | 3 mm | 0.118 in |
| Bore — B | 142.7 mm | 5.62 in |
| Plate, RF — C | 19 mm | 0.748 in |
| Plate, FF — C | 16 mm | 0.630 in |
| Blind, RF — C | 19 mm | 0.748 in |
| Blind, FF — C | 16 mm | 0.630 in |
IS 9523 PN 25 — plate and blind flange (mm)
| Dimension | Value | Equivalent |
|---|---|---|
| Flange OD — D | 270 mm | 10.63 in |
| Bolt circle — K | 220 mm | 8.66 in |
| Number of bolts | 8 | |
| Hole dia — L | 28 mm | 1.10 in |
| Raised face — d1 | 184 mm | 7.24 in |
| RF height — f | 3 mm | 0.118 in |
| Bore — B | 142.7 mm | 5.62 in |
| Plate, RF — C | 19 mm | 0.748 in |
| Plate, FF — C | 16 mm | 0.630 in |
| Blind, RF — C | 19 mm | 0.748 in |
| Blind, FF — C | 16 mm | 0.630 in |
IS 9523 PN 40 — plate and blind flange (mm)
| Dimension | Value | Equivalent |
|---|---|---|
| Flange OD — D | 270 mm | 10.63 in |
| Bolt circle — K | 220 mm | 8.66 in |
| Number of bolts | 8 | |
| Hole dia — L | 28 mm | 1.10 in |
| Raised face — d1 | 184 mm | 7.24 in |
| RF height — f | 3 mm | 0.118 in |
| Bore — B | 142.7 mm | 5.62 in |
| Plate, RF — C | 23.5 mm | 0.925 in |
| Plate, FF — C | 20.5 mm | 0.807 in |
| Blind, RF — C | 23.5 mm | 0.925 in |
| Blind, FF — C | 20.5 mm | 0.807 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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Other sizes — IS 9523 Flange Dimensions — Plate & Blind, PN 10 to PN 40
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DN 125 IS 9523 Flange Dimensions — Plate & Blind, PN 10 to PN 40: common questions
What are the DN 125 IS 9523 Flange Dimensions — Plate & Blind, PN 10 to PN 40?
DN 125 (5") to IS 9523: OD 250 mm; PCD 210 mm; bolts 8; holes 19 mm; raised face 184 mm.
Does Teshi Group manufacture DN 125 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 125 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 125 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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