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Diameters & Drilling of DIN Flanges
( mm )

O.D. = outside diameter    PCD = bolt circle diameter    PN = nominal pressure in bars
**Nominal Pipe Sizes as used in this table are NOT USA sizes, but are the BSP (British Standard Pipe sizes) which are similar to but NOT the same. Click here for a BSP/USA pipe O.D. comparison chart.

Note: (1 bar = 14.5 psi = 0.1 MPa = 100 KPa = 1.02 Kgf/cm²)


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