What is BS 5433 – Specification for underground stopvalves about ?
Underground stopvalves are usually used to stop or maintain a steady regulated flow of liquid running through the underground pipes.
BS 5433 is a British Standard that discusses the specifications for safe and adequate use of underground stopvalves.
BS 5433 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.
Who is BS 5433 - Specification for underground stopvalves for ?
BS 5433 on specification for underground stopvalves is relevant to:
Underground stopvalve manufacturers
Product designers
Quality control and testing personnel
Local authorities involved with water supply systems
Regulatory bodies
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