PN 64 Flat Flange (DIN 2501)

PN 64 flat flanges manufactured to DIN 2501 in ST 37.2 carbon steel. Designed for high-pressure piping systems where a flat sealing face is required, these flanges cover a range of nominal diameters (DN) with dimensions and masses defined by DIN 2501. Primary bore, thickness, and weight values follow DIN 2501 tabulation; EN 1092-1 and ISO 7005-1 dimensional references are also provided where applicable.

Key constraints and variant notes: - Only nominal size (DN) is configurable; pressure class is fixed at PN 64 - DN 65 bore is stored as 77.1 mm (corrected from source; 71.1 mm is smaller than the 76.1 mm pipe OD) - DN 450 is not available in this series; the range steps from DN 400 to DN 500