Water Systems and Treatment

Front

British standard for cold water systems

Back

BSEN 806

Front

Pipework section marked as X on the layout diagram of incoming supply pipework

Back

Supply pipe

Front

Maximum and minimum pipework depths for cold-water supply pipe entry

Back

1350mm and 750mm

Front

Role of an internal stop valve

Back

Controls water flow inside the property

Front

Use of diagrams in pipework layout

Back

Helps identify components and connections

Front

Type of cold-water system shown in the diagram.

Back

Indirect system, Storage system, Direct system, Separated system

Front

Type of cold-water system shown in the diagram: Indirect system, Storage system, Direct system, Separated system

Back

Indirect system

Front

Type of float operated valve shown: BS 1212 part 1 Portsmouth valve, BS 1212 part 2 Diaphragm valve Copper alloy body, BS 1212 part 3 Diaphragm valve plastic body, BS 1212 part 4 compact valve for WC’s

Back

BS 1212 part 2 Diaphragm valve Copper alloy body

Front

An air gap is the backflow prevention method used to protect tap outlets of an over the rim Bidet.

Back

This method prevents contamination of the water supply by creating a physical separation.

Front

Fluid category 1 refers to wholesome water in water supply water fittings regulations.

Back

This category includes water that is safe for drinking and other domestic uses.