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IS 9523FlangesTG-DS-088 · size page

DN 500 IS 9523 Flange Dimensions — Plate & Blind, PN 10 to PN 40

DN 500 (20") to IS 9523: OD 670 mm; PCD 620 mm; bolts 20; holes 28 mm; raised face 582 mm.

Full chart — all sizesRequest a quoteWatermarked, print-ready A4 · © Teshi Group
D = Ø670K (PCD) = Ø62020 holes × Ø28C = 26.5d1 = Ø582DN 500 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 500 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 — D670 mm26.38 in
Bolt circle — K620 mm24.41 in
Number of bolts20
Hole dia — L28 mm1.10 in
Raised face — d1582 mm22.91 in
RF height — f4 mm0.157 in
Bore — B511 mm20.12 in
Plate, RF — C26.5 mm1.04 in
Plate, FF — C22.5 mm0.886 in
Blind, RF — C26.5 mm1.04 in
Blind, FF — C22.5 mm0.886 in

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

DimensionValueEquivalent
Flange OD — D715 mm28.15 in
Bolt circle — K650 mm25.59 in
Number of bolts20
Hole dia — L34 mm1.34 in
Raised face — d1609 mm23.98 in
RF height — f4 mm0.157 in
Bore — B511 mm20.12 in
Plate, RF — C31.5 mm1.24 in
Plate, FF — C27.5 mm1.08 in
Blind, RF — C31.5 mm1.24 in
Blind, FF — C27.5 mm1.08 in

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

DimensionValueEquivalent
Flange OD — D730 mm28.74 in
Bolt circle — K660 mm25.98 in
Number of bolts20
Hole dia — L37 mm1.46 in
Raised face — d1609 mm23.98 in
RF height — f4 mm0.157 in
Bore — B511 mm20.12 in
Plate, RF — C36.5 mm1.44 in
Plate, FF — C32.5 mm1.28 in
Blind, RF — C36.5 mm1.44 in
Blind, FF — C32.5 mm1.28 in

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

DimensionValueEquivalent
Flange OD — D755 mm29.72 in
Bolt circle — K670 mm26.38 in
Number of bolts20
Hole dia — L43 mm1.69 in
Raised face — d1615 mm24.21 in
RF height — f4 mm0.157 in
Bore — B511 mm20.12 in
Plate, RF — C52 mm2.05 in
Plate, FF — C48 mm1.89 in
Blind, RF — C52 mm2.05 in
Blind, FF — C48 mm1.89 in
← DN 450DN 600 →

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

What are the DN 500 IS 9523 Flange Dimensions — Plate & Blind, PN 10 to PN 40?

DN 500 (20") to IS 9523: OD 670 mm; PCD 620 mm; bolts 20; holes 28 mm; raised face 582 mm.

Does Teshi Group manufacture DN 500 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 500 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 500 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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