Size DN375

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FLANGE DIMENSIONS TABLE SIZE (DN) 375 (14″)

Class/Table Flange O.D. PCD Bolts Bolt Size Hole Size Minimum Flange Thickness*
Cast Iron Copper Alloy Ductile Iron Steel
AS2129① Table C 550mm 495mm 12 M24 26mm 32mm 32mm
AS2129① Table D 550mm 495mm 12 M24 26mm 29mm 25mm 22mm
AS2129① Table E 550mm 495mm 12 M24 26mm 32mm 25mm 32mm
AS2129① Table F 580mm 521mm 16 M27 30mm 35mm 32mm 38mm
AS2129① Table H 580mm 521mm 16 M27 30mm 50mm 44mm 51mm

① 15 inch is now obsolete and no longer referenced in AS2129. ASME/EN/ISO Do not use 15″. British Standard BS10 is the same as AS except due to imperial bolts the bolt hole may vary slightly in some cases. British BS Standard no longer references 15″ size.

* Varies according to flange type (thickness usually includes raised face height where applicable) refer to standard. Some standards publish integral flange thicknesses used for valves which are often different than blind or welding flange thicknesses hence refer to standard for clarification. Refer links to flange standards in the technical screen of our website.

This above table is a rough ready reckoner only to understand standards, differences & commonality and to assess interchangeability. Refer to the standard required itself before manufacture.

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