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BS 6281-3:1982
Superseded
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Devices without moving parts for the prevention of contamination of water by backflow Specification for pipe interrupters of nominal size up to and including DN 42
Hardcopy , PDF
25-01-2006
English
30-11-1982
Foreword
Cooperating organizations
Specification
Section one. General
1 Scope
2 Definitions
3 Nominal size
4 Marking
Section two. Materials and design
5 Materials
6 End connections
7 Design
Section three. Performance
8 Vacuum test
9 Torque test
Section four. Instructions
10 Installation instructions
Appendices
A Vacuum test
B Torque test
Tables
1 Nominal size
2 Recommended vacuum vessel capacities
3 Torque
Figure
1 Arrangement of apparatus for vacuum test
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