BS 5433:1976

This standard BS 5433:1976 Specification for underground stopvalves for water services is classified in these ICS categories:

• 91.140.60 Water supply systems

This British Standard applies to copper alloy screwdown stopvalves of nominal sizes from ½ to 2 for installation on underground water service pipes. The nominal size is that corresponding to the pipe size of the thread at the end connection. It includes stopvalves with ends screwed internally or externally or arranged in accordance with clause 25, and fitted with a crutch or with a square head.

Copper alloy screwdown stopvalves, nominal sizes ½ to 2.