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IS 9523FlangesTG-DS-088 · size page

DN 250 IS 9523 Flange Dimensions — Plate & Blind, PN 10 to PN 40

DN 250 (10") to IS 9523: OD 395 mm; PCD 350 mm; bolts 12; holes 23 mm; raised face 319 mm.

Full chart — all sizesRequest a quoteWatermarked, print-ready A4 · © Teshi Group
D = Ø395K (PCD) = Ø35012 holes × Ø23C = 22d1 = Ø319DN 250 IS 9523 Flange Dimensions — Plate & Blind, PN 10 to PN 40 — drawn to scale from the tabulated dimensions (front view and half section)

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 250 IS 9523 Flange Dimensions — Plate & Blind, PN 10 to PN 40 — all dimensions

IS 9523 PN 10 — plate and blind flange (mm)

DimensionValueEquivalent
Flange OD — D395 mm15.55 in
Bolt circle — K350 mm13.78 in
Number of bolts12
Hole dia — L23 mm0.906 in
Raised face — d1319 mm12.56 in
RF height — f3 mm0.118 in
Bore — B276 mm10.87 in
Plate, RF — C22 mm0.866 in
Plate, FF — C19 mm0.748 in
Blind, RF — C22 mm0.866 in
Blind, FF — C19 mm0.748 in

IS 9523 PN 16 — plate and blind flange (mm)

DimensionValueEquivalent
Flange OD — D400 mm15.75 in
Bolt circle — K355 mm13.98 in
Number of bolts12
Hole dia — L28 mm1.10 in
Raised face — d1319 mm12.56 in
RF height — f3 mm0.118 in
Bore — B276 mm10.87 in
Plate, RF — C22 mm0.866 in
Plate, FF — C19 mm0.748 in
Blind, RF — C22 mm0.866 in
Blind, FF — C19 mm0.748 in

IS 9523 PN 25 — plate and blind flange (mm)

DimensionValueEquivalent
Flange OD — D425 mm16.73 in
Bolt circle — K370 mm14.57 in
Number of bolts12
Hole dia — L31 mm1.22 in
Raised face — d1330 mm12.99 in
RF height — f3 mm0.118 in
Bore — B276 mm10.87 in
Plate, RF — C24.5 mm0.965 in
Plate, FF — C21.5 mm0.846 in
Blind, RF — C24.5 mm0.965 in
Blind, FF — C21.5 mm0.846 in

IS 9523 PN 40 — plate and blind flange (mm)

DimensionValueEquivalent
Flange OD — D450 mm17.72 in
Bolt circle — K385 mm15.16 in
Number of bolts12
Hole dia — L34 mm1.34 in
Raised face — d1345 mm13.58 in
RF height — f3 mm0.118 in
Bore — B276 mm10.87 in
Plate, RF — C34.5 mm1.36 in
Plate, FF — C31.5 mm1.24 in
Blind, RF — C34.5 mm1.36 in
Blind, FF — C31.5 mm1.24 in
← DN 200DN 300 →

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.

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.

Other sizes — IS 9523 Flange Dimensions — Plate & Blind, PN 10 to PN 40

DN 80DN 100DN 125DN 150DN 200DN 250DN 300DN 350DN 400DN 450DN 500DN 600DN 700DN 750DN 800DN 900DN 1000DN 1100DN 1200DN 1400DN 1600DN 1800DN 2000

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FAQ

DN 250 IS 9523 Flange Dimensions — Plate & Blind, PN 10 to PN 40: common questions

What are the DN 250 IS 9523 Flange Dimensions — Plate & Blind, PN 10 to PN 40?

DN 250 (10") to IS 9523: OD 395 mm; PCD 350 mm; bolts 12; holes 23 mm; raised face 319 mm.

Does Teshi Group manufacture DN 250 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 250 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 250 flanges?

Teshi Group manufactures them in India — send your size, rating and material and get a quote in 24–48 hours.

Request a quoteWhatsApp +91 78900 09110info@ / sales@teshigroup.com

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