Threaded pipe fittings in malleable cast iron and cast copper alloy not-for-sale hexagons or octagons

hexagons or octagons

NOTE: Because of the large variety of products and potential uses within this field of application

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NOTE It may not be applicable to very stiff concrete which cannot be compacted by normal vibration

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Threaded pipe fittings in malleable cast iron and cast copper alloy not-for-sale hexagons or octagons1 Scope This British Standard specifies requirements for design and performance of threaded pipe fittings in malleable cast iron and cast copper alloy for two basic designs: a) BS 143, with taper external and taper internal threads; b) BS 1256, with taper external and parallel internal threads. This British Standard applies to fittings in the following categories: 1) category 1: BS 143 design and BS 1256 design, in a limited range of malleable cast