Austrilia Standard Flanges

Australian Flange Standards

Australian flange standards provide specifications for pipe flanges used in various industrial applications across Australia. These standards ensure compatibility, safety, and reliability in piping systems.

Our flanges are manufactured according to Australian Standards (AS) for use in water, wastewater, mining, oil & gas, chemical, and marine industries.

AS2129

Australian industrial pipe flange standard for pressure ratings from table D to J. Available in bossed, slip-on, weld neck, and blind configurations for sizes 15-1200mm (1/2-48″).

Table D

 AS2129 Table D Flange in blind, slip on, bossed and weld neck configurations.

Table E

 AS2129 Table E flanges in blind, slip on, bossed, and weldneck configurations.

Table F

 AS2129 Table F flanges in blind, slip on, bossed and weld neck.

Table H

 AS2129 Table H flanges in blind, slip on, bossed and weld neck.

Table J

 AS2129 Table J flanges in blind, slip on, bossed and weld neck.

AS4087

Australian water industry pipe flange standard for pressure ratings from PN16 to PN35. Available in blind and slipon configurations for sizes 50-1200mm (2-48″).

PN16

 AS4087 PN16 flanges in blind and slipon.

PN21

 AS4087 PN21 flanges in blind and slipon.

PN35

 AS4087 PN35 flanges in blind and slipon.

AS4331

AS4331 covers PN2.5 to PN420 and the sizing and drilling used is a replication of ISO 7005-1 which in turn is a metricated equivalent of ASME B16.5 class 150 to 2500. ISO 7005-1 also incorporates the superceded DIN 2533 & DIN 2501 flanges which AS4331 also incorporates (also mirrored in EN1092).

AS/NZS 4331 is identical with and has been reproduced from ISO 7005.
4331.1 – Steel Flanges (ISO 7005-1) EN1092-2 (DIN 2501/BS4504 based) PN2.5 / 6 / 10 / 16 / 25 / 40 and ANSI 150~2500LB ISO equivalent PN 20 / 50 / 110 / 150 / 260 / 420
4331.2 – Cast Iron Flanges (ISO 7005-2) PN2.5 / 6 / 10 / 19 / 20 / 25 / 40 / 50
4331.3 – Copper Alloy and composite flanges (ISO 7005-3) PN10 to N50