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BS 10FlangesTG-DS-049 · size page

4 inch BS 10 Table J Flange Dimensions

4 inch (DN 100) to BS 10: OD 9 in; thickness 1 3/8 in; PCD 7 1/2 in; bolts 8; holes 7/8 in.

Full chart — all sizesRequest a quoteWatermarked, print-ready A4 · © Teshi Group
D = Ø229K (PCD) = Ø1918 holes × Ø22C = 354 inch BS 10 Table J Flange Dimensions — drawn to scale from the tabulated dimensions (front view and half section)

Key to dimensions

D
Outside diameter of flange
C
Flange thickness, excluding raised face unless stated
K
Bolt circle (pitch circle) diameter
n
Number of bolts
L
Bolt hole diameter
Bolt
Bolt size (metric M or inch diameter)

4 inch BS 10 Table J Flange Dimensions — all dimensions

BS 10 Table J — flange dimensions

DimensionValueEquivalent
Size100
Flange OD — D9 in228.6 mm
Flange OD — D229 mm9.02 in
Flange — C1 3/8 in34.9 mm
Flange — C35 mm1.38 in
Bolt circle — K7 1/2 in190.5 mm
Bolt circle — K191 mm7.52 in
Number of bolts8
Hole dia — L7/8 in22.2 mm
Hole dia — L22 mm0.866 in
Bolt size3/4

Values are nominal, from BS 10 Table J Flange Dimensions. Verify critical dimensions against the current edition of the standard before design, purchase or fabrication.

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FAQ

4 inch BS 10 Table J Flange Dimensions: common questions

What are the 4 inch BS 10 Table J Flange Dimensions?

4 inch (DN 100) to BS 10: OD 9 in; thickness 1 3/8 in; PCD 7 1/2 in; bolts 8; holes 7/8 in.

Does Teshi Group manufacture 4 inch flanges?

Yes. Teshi Group is an OEM manufacturer in India of flanges to BS 10, in carbon, alloy, stainless, duplex, super duplex, nickel alloys, titanium and Cu-Ni, with EN 10204 3.1 certificates.

Can I download the 4 inch 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 BS 10 Table J Flange Dimensions chart.

Need 4 inch flanges?

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