BS 4622:1970
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Specification for grey iron pipes and fittings
Hardcopy , PDF
08-02-2013
English
07-29-1970
Cooperating organizations
Foreword
Specification
1. Scope
2. Types of joints
3. Pipes
4. Fittings
5. Marking
6. Quality of metal used
7. Quality of pipes and fittings
8. Heat treatment
9. Testing for straightness and uniformity
10. Tolerances on dimensions
11. Tolerances on standard mass
12. Quality control
13. Selection of test pieces by the purchaser
14. Mechanical tests
15. Works proof tests
16. Coating
17. Inspection
18. Manufacturer's certificate
19. Testing facilities
Appendices
A. Extracts from BS 10
B. Pressure unit conversions
C. Alternative method of interconnection between metric
and inch size pipes and fittings
Tables
1. Tolerances on external diameter of barrel of pipes,
flanged spigot pieces and plugs, and internal
diameter and depth of sockets for lead-caulked joints
2. Tolerances on wall and flange thickness
3. Tolerances on lengths of pipes
4. Tolerances on standard mass
5. Results for the tensile and hardness tests (pipes
centrifugally cast in metal moulds)
6. Results for the tensile and hardness tests (pipes
centrifugally cast in sand moulds)
7. Results for the tensile and hardness tests (sand
cast pipes and fittings)
8. Hydrostatic works test pressures, suggested maximum
hydraulic working pressures (inclusive of surge) and
suggested maximum hydrostatic site test pressures
9. Dimensions of spigots and sockets for lead-caulked
joint
10. Standard flanges - Type NP10
11. Standard flanges - Type NP16
12. Standard pipe
13. Standard pipe with screwed-on flanges
14. Standard pipe with cast-on flanges
15. 90 deg bends
16. 45 deg bends
17. 22 1/2 deg bends
18. 11 1/4 deg bends
19. Tees
20. Flanged branch tees
21. Concentric tapers
22. Collars
23. Change collars
24. Caps
25. Plugs
26. Condensate receivers
27. Hydrant bends (80 mm flange)
28. Flanged socket pieces
29. Flanged spigot pieces
30. Blank flanges - Type NP10
31. Blank flanges - Type NP16
32. Double flanged 90 deg bends, short radius
33. Double flanged 90 deg bends, long radius
34. Double flanged 45 deg bends
35. Double flanged 11 1/4 deg bends
36. Double flanged 90 deg duckfoot bends
37. All flanged tees
38. Double flanged tapers
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