AS 4087:2011

Provides manufacturers with requirements for metallic flanges for waterworks purposes and installers of flanged components guidance on the most appropriate jointing requirements to achieve a satisfactory long-term watertight joint.

This Standard specifies requirements for circular flanges manufactured from copper alloy, grey cast iron, ductile cast iron, or steel. The external shapes of flanges may alternatively be any other shape.It covers nominal sizes with pressure ratings for PN 14, PN 16, PN 21 and PN 35 at operating temperatures not exceeding 80°C. The Standard also specifies requirements for jointing materials.Flanges are suitable for use on pipes, pipe fittings, valves and other appurtenances that are primarily intended for the conveyance or storage of water or wastewater. For applications outside the limits specified in this Standard the appropriate flange details may be determined from AS 2129 series, Flanges for pipes, valves and fittings, and AS/NZS 4331 series, Metallic flanges.

First published as AS 4087-1993.Second edition 1996.Third edition 2004.Revised and redesignated as AS/NZS 4087:2011. Originated as AS 4087-1993. Third edition 2004. Revised and redesignated as AS/NZS 4087:2011. Originated as AS 4087-1993. Third edition 2004. Revised and redesignated as AS/NZS 4087:2011. Reissued incorporating Amendment No 2 (June 2023) as AS 4087:2011.