BS 6281-3:1982
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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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