FLANGES

FLANGE AS 2129 SPECIALIZED FLANGE AS 2129 MANUFACTURER, FLANGE AS 4087, AUSTRALIAN STANDARD FLANGE DIMENSIONS AND WEIGHT. Marcel Piping Projects Supply PVT LTD is well-known manufacturers of AS 2129 Flange in India. In Australia, the BS and AS flange standards are essentially the same but have been metricated. Consequently, metric sizes are stated as ‘DN’ (Nominal Diameter) in mm. Equivalent imperial sizing is rounded to the nearest multiple of 25mm (for 2” and over) as below. However, the actual dimensions and bore sizes have not changed. ‘NB’ (Nominal Bore) is also sometimes used when referring to valve sizes. The most common flanging used in Australia in oil, gas, and mining is now ANSI flanging to ANSI B16.5. However in general industrial, commercial and waste/water industries AS2129 Table flanging is the most common. Increasingly European PN-rated flanges are also specified in BS4504 as well as AS4331 and EN 1092-1. BS4504 is now obsolete and is replaced by EN 1092 which is listed in British Standards as BS-EN 1092. EN 1092 evolved from DIN 2501 which became part of ISO 7005, then EN 1092 was created as the standard for DIN-based flanges. (BS4504 flanges were generally the same as the old DIN 2501 specification, but the new EN 1092 standard covers a wider range). EN 1092-1 is for steel flanges, EN 1092-2 is for iron flanges, EN 1092-3 is for alloy flanges, EN 1092-4 is for aluminium alloy flanges. PN stands for Nominal Pressure and roughly equates to the number of bar i.e. the cold working pressure of PN10 is 10 bar. Ratings range from PN2.5 to PN420. The latest Australian standard AS4331 references this rating system (PN2.5 to PN420). AS4331 is a reproduction of ISO 7005 which is based on the American and European flange systems PN20, PN50, PN 110, PN 150, PN 260, and PN 420 steel flanges are “designed to be interchangeable” with flanges to American standards ANSI/ASME B16.5 and MSS SP44; they are not identical but are “deemed to comply” with ...

FLANGES |