BS 5779:1979
Current
The latest, up-to-date edition.
Hardcopy , PDF
English
31-10-1979
Foreword
Cooperating organizations
Specification
Section one. General
1. Scope
2. References
3. Definitions
4. Materials
5. Marking
Section two. Dimensions, design and construction
6. General
7. Nominal size
8. Inlets
9. Spray outlet
10. Flow restrictor
Section three. Type testing
11. General
12. Rate of flow test
13. Test for divergence of the spray
14. Sensitivity of control of single control type spray
mixing taps
15. Devices to prevent cross tracking intercommunication
of supply systems
16. Blended water temperature extremes
Appendices
A. Notes on the installation of spray mixing taps
B. Types of spray mixing taps with reference to
relevant clauses
C. Information to be supplied by the purchaser
D. Method of setting manually adjustable restrictors
E. Method of measuring the rate of flow through spray
mixing taps fitted with manually adjustable flow
restrictors
F. Method of measuring the rate of flow through spray
mixing taps fitted with self-adjusting restrictors
G. Method of measuring the divergence of the spray
H. Method for the determination of sensitivity of
control
J. Method for the determination of resistance to cross
tracking
K. Method of measuring the achievable blend of water
temperature extremes
Table
1. Dimensions of pressure take-off tee
Figures
1. Installation and dimensional features of spray
mixing taps
2. Sectional diagram of spray, spray outlet and
annular gauge
3. Typical sensitivity curve for single control type
spray mixing taps
4. Blended water temperature extremes
5. Details of pressures take-off tee
6. Blended water temperature test apparatus
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