BS 4368-1:1972

Cooperating organizations
Foreword
Specification
1. General requirements
1.1. Scope
1.2 Materials
1.3 Pressure/temperature ratings
1.4 Designation of couplings
1.5 Tubes
1.6 Across flats dimensions
1.7 Design
1.8 Screw threads
1.9 Workmanship
1.10 Protective treatment
1.11 Type testing
1.12 Text deleted
1.13 Text deleted
1.14 Marking
1.15 Certificate of compliance
2. Detailed dimensions of compression couplings Type A
2.1 Introduction
Appendices
A. Method of describing compression couplings (metric
    sizes)
B. Information to be agreed between the purchaser and
    the manufacturer
C. Text deleted
Tables
1. Nominal working pressure ratings of Type A carbon
    and stainless steel couplings in accordance with
    Section 2
1A. Nominal working pressure ratings of Type A copper
    alloy couplings in accordance with Section 2
2. Tube sizes
3. Across flats dimensions
4. Standard threaded stud ends (connector ends)
5. Coupling nut
6. Ring, ferrule and cove details
7. Straight coupling - assembly
8. Straight coupling - body
9. Male stud coupling - assembly
10. Male stud coupling - body
11. Equal elbow - assembly
12. Equal elbow - body
13. Male stud elbow - assembly
14. Male stud elbow - body
15. Equal tee - assembly
16. Equal tee - body
17. Male stud tee (stud branch) - assembly
18. Male stud tee (stud branch) - body
19. Male stud tee (stud run) - assembly
20. Male stud tee (stud run) - body
21. Equal cross - assembly
22. Equal cross - body
23. Taper male stud elbow - body
24. Taper male stud tee (stud branch) - body
25. Taper male stud tee (stud run) - body
26. Reducing adaptors (tube to tube)
27. Bulkhead assembly
28. Bulkhead body and nut
29. Table deleted
30. Table deleted
Figures
1. Compression couplings
2. Male stud coupling 20 mm x 3/4 in BSPF, Ext G 3/4 A
3. Male stud elbow 20 mm x 3/4 in BSPF, Ext G 3/4 A
4. Male stud tee 20 mm x 3/4 in BSPF, Ext x
    20 mm G 3/4 A

Heavy series couplings are in agreement with the heavy series couplings of DIN 2353. Covers Type A, Type B and Type C couplings for tubes having outside diameters 6 mm to 50 mm.