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NZS/BS 4504.3.3.1:1989

Superseded

Warning: Superseded Standard. This document has been replaced by:

AS/NZS 4331.3:1995

Circular flanges for pipes, valves, and fittings (PN designated) - Steel, cast iron and copper alloy flanges. - Specification for steel flanges

Specifies types of circular steel flanges from PN2.5 to PN 40 and in sizes up to DN 4000. Specifies facings, dimensions, tolerances, threading, bolt sizes, marking and materials for bolting and flange materials with associated pressure/temperature ratings.

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