BS 5352(1981) : 1981

Foreword
Cooperating organizations
Specification
Section one. General
1. Scope
2. References
3. Definitions
4. Pressure classification
5. Pressure/temperature ratings
6. Nominal sizes
7. End types
8. Information to be supplied by the purchaser
Section two. Design
9. Shell
10. Backseat face
11. Bolting
12. Direction of flow
13. Nameplate
14. Wedge
15. Disk and disk nut
16. Stem
17. Stuffing box
18. Yoke, yoke sleeve and yoke bush
19. Body seat and body seat ring
20. Handwheel
21. Bellows seal
22. Check valves
Section three. Materials
23. Shell
24. Body seat ring
25. Body and bonnet/cover gasket
26. Wedge, disk, piston or ball
27. Yoke
28. Handwheel
29. Handwheel and yoke bush/sleeve retaining nut
30. Yoke bush or sleeve
31. Gland
32. Bellows
33. Trim
34. Stem packing
35. Bolting
36. Nameplate
37. Special applications
Section four. Marking
38. General
39. Body markings
40. Identification plate marking
41. Additional markings
42. Omission of markings
Section five. Testing
43. Product pressure testing
Section six. Preparation for despatch
44. Despatch preparation
Appendices
A. Application to piping systems with flanges in
    accordance with BS 4504: Part 1
B. Application to piping systems with screw threads
    in accordance with BS 21
C. Type test for bellows used in bellows seal gate or
    globe valves
D. Details of butt-weld ends
Tables
1. Pressure/temperature ratings for class 800 screwed
    and socket-weld end valves
2. Pressure/temperature ratings for bellows seal valves
3. End type availability according to class and size
    of valve
4. Minimum body and bonnet wall thickness (excluding
    pipe ends)
5. Minimum port diameter and seat bore
6. Minimum outside diameter or dimension across flats
    of body ends
7. Minimum wear travel
8. Minimum stem diameter for wedge gate valves
9. Minimum stem diameter for globe valves
10. Packing and stuffing box dimension
11. Valve trim material
11a.Required production pressure tests
12. Nominal pressure, class rating and nominal size
    range
13. Table deleted
14. Minimum outside diameter of sealing face for valves
    with parallel threads in accordance with BS 21
15. Dimensions of butt-weld ends
Figures
1. Typical wedge gate valve (outside screw)
2. Typical wedge gate valve (inside screw)
3. Typical globe valve (outside screw)
4. Typical globe valve (inside screw)
5. Typical vertical ball check valve
6. Typical piston/ball check valve
7. Typical bellows seal wedge gate valve
8. Weld-end for connection to pipe of wall thickness
    t of 4.8 mm to 22 mm inclusive

Describes requirements for forged, cast or bar stock steel wedge gate, globe stop and check valves with flanged, screwed, socket weld or butt weld ends, in sizes 50mm and smaller in classes 150, 300, 600, 800 and 1500 of wedge gate valves, globe valves, and bellows sealed valves.