BS 5412&5413-3(1976) : AMD 3156

Foreword
Cooperating organizations
Specification
Section one. General
1 Scope
2 References
3 Definitions
4 Requirements for compliance with BS 5412 and BS 5413
5 Nominal size
6 Marking
7 Identification of taps
Section two. Hydraulic characteristics
8 General
9 Hydraulic tests
10 Flow characteristics
Appendices
A Method for the determination of the rate of flow
B Method for determination of concentration of jet
Tables
1 Minimum rates of flow at 0.1 bar running pressure
2 Dimensions of pressure take-off tee
Figures
1 Flow rate test apparatus
2 Details of pressure take-off tee
3 Concentration of jet test apparatus

Defines the hydraulic characteristics of 1/2 and 3/4 nominal size draw-off taps and covers hydraulic and flow rate tests and characteristics. Relates to following types of tap: pillar and bib taps, combination tap assemblies, single hole combination tap assemblies, three hole combination tap assemblies. Includes sections on requirements for compliance with BS 5412 and BS 5413, nominal size, marking, identification of taps, hydraulic tests and flow characteristics.