BS 6494-3:1989

National foreword
Committees responsible
Specification
0. Introduction
1. Scope and field of application
2. References
3. Definitions
4. Symbols
5. Tolerances
6. Dimensions
7. Port marking
8. Modular stack valves
9. Working pressure
10. Identification statement
Figures
1. Mounting surface for pressure relief valves with
     main ports of 4 mm maximum port diameter (size 02)
2. Direction-operated pressure-relief valves with main
     ports of 4 mm maximum port diameter (code: ISO
     6264-AA-02-4-C)
3. Mounting surface for pressure-relief valves with
     main ports of 7,5 mm maximum port diameter (size 03)
4. Directly-operated pressure-relief valves with main
     ports of 7,5 mm maximum port diameter (code ISO
     6264-AB-03-4-C)
5. Pilot-operated pressure-relief valves with main
     ports of 7,5 mm maximum port diameter (code: ISO
     6264-AB-03-4-C)
6. Mounting surface for pressure-relief valves with
     ports of 14,7 mm maximum port diameter (size 06)
7. Pilot-operated pressure-relief valves with main
     ports of 14,7 mm maximum port diameter (code: ISO
     6264-AG-06-2-A)
8. Mounting surface for pressure-relief valves with
     main ports of 14,7 mm maximum port diameter
     (size 06)
9. Pilot-operated pressure-relief valves with main
     ports of 14,7 mm maximum port diameter (code: ISO
     6264-AR-06-2-A)
10. Mounting surface for pressure-relief valves with
     main ports of 14,7 mm maximum port diameter
     (size 06)
11. Pilot-operated pressure-relief valves with main
     ports of 14,7 mm maximum port diameter (code: ISO
     6264-AR-06-2-B)
12. Mounting surface for pressure-relief valves with
     main ports of 23,4 mm maximum port diameter
     (size 08)
13. Pilot-operated pressure-relief valves with main
     ports of 23,4 mm maximum port diameter (code: ISO
     6264-AH-08-2-B)
14. Mounting surface for pressure-relief valves with
     main ports of 23,4 mm maximum port diameter
     (size 08)
15. Pilot-operated pressure-relief valves with main
     ports of 23,4 mm maximum port diameter (code: ISO
     6264-AS-08-2-A)
16. Mounting surface for pressure-relief valves with
     main ports of 23,4 mm maximum port diameter
     (size 08)
17. Pilot-operated pressure-relief valves with main
     ports of 23,4 mm maximum port diameter (code: ISO
     6264-AS-08-2-B)
18. Mounting surface for pressure-relief valves with
     main ports of 32 mm maximum port diameter (size 10)
19. Pilot-operated pressure-relief valves with main
     ports of 32 mm maximum port diameter (code: ISO
     6264-AJ-10-2-B)
20. Mounting surface for pressure-relief valves with
     main ports of 32 mm maximum port diameter (size 10)
21. Pilot-operated pressure-relief valves with main
     ports of 32 mm maximum port diameter (code: ISO
     6264-AT-10-2-A)
22. Mounting surface for pressure relief valves with
     main ports of 32 mm maximum port diameter (size 10)
23. Pilot-operated pressure-relief valves with main
     ports of 32 mm maximum port diameter (code: ISO
     6264-AT-10-2-B)
Bibliography