Cooperating organizations
Foreword
Specification
Section one. General
1. Scope
2. References
3. Terminology and definitions
4. Types
5. Nominal sizes
6. Nominal pressure
7. Pressure/temperature ratings
Section two. Body ends
8. Flanged body ends
Section three. Design and manufacture
9. Bodies
10. Body to bonnet connection
11. Stems
12. Operation
13. Bolting
14. Seats
15. Disks
16. Stem sealing
17. Yokes
Section four. Materials
18. Choice of materials
19. Trim
Section five. Testing and inspection
20. Testing
21. Test certificate
22. Inspection
23. Witnessing of tests
24. Certificate of conformity
Section six. Preparation for despatch
25. After testing
26. Disk position
27. Body ends
Section seven. Marking
28. General
29. Body markings
30. Identification plate markings
31. Body or identification plate marking
32. Material symbols
33. Additional markings
Section eight. Valves for use in ANSI flanged piping
systems
34. Requirements
Section nine. Enquiry or order information
35. Information to be supplied
Appendix
A. Cast iron gate (parallel slide) valves for general
purposes with ANSI Class 125 flanges
Tables
1. Pressure/temperature rating
2. Face-to-face dimensions
3. Dimensions of body end ports and seat bores
4. Basic materials
5. Test durations
6. Dimensions of ANSI Class 125 flanges
7. Pressure/temperature ratings for Class 125 valves
8. Test pressure (gauge) for Class 125 valves