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Flange Size & Rating Calculator

Retrieve complete flange dimensions — outside diameter, bolt circle, bolt count and size, flange thickness, raised face diameter — for ASME B16.5 (Class 150 to 2500) and EN 1092-1 (PN6 to PN100) flange standards across all common material groups.

Flange Size Lookup

Select a flange standard, pressure class and nominal size to retrieve full dimensions — OD, bolt circle, bolt count and size, flange thickness, raised face diameter, and manufacturing tolerances. Covers ASME B16.5 (Class 150–2500) and EN 1092-1 (PN6–PN100).

Norme de bride

Classe de pression / PN

Diamètre nominal

Nuance de matériau

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Serial Ref — Quote this reference when ordering or enquiring

Flange OD

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Bolt Circle (PCD)

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No. of Bolts

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bolts

Bolt Hole Dia.

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Stud Bolt Size

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Min. Thickness

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Raised Face Dia.

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Raised Face Height

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Governing Standard—

Facing Type—

OD Tolerance—

Thickness Tolerance—

BC Tolerance—

Bolt Hole Tolerance—

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All Classes — —

Serial	Class/PN	OD (mm)	BC (mm)	Bolts	BH (mm)	Bolt Size	Thickness (mm)	RF Dia (mm)

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