BOC Edwards 18B4B, Instruction Manual, Page: 10 / 62

Issue A Feb 04
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18B4B Vapour Booster Pumps
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Figure 1 - Part sectional view of the 18B4B pump: key
1. Inlet
2. Guard ring
3. Inlet ‘O’ ring
4. Cooling-water inlet
5. Top vapour tube
6. Second stage vapour tube
7. Cooling-fail thermal snap-switch
8. Ejector nozzle
9. Cooling-fail thermal snap-switch
10. Cleaning port cover and gasket
11. Cleaning port access lid
12. Fluid low level switch (optional)
13. Cooling-coil
14. Side cone assembly
15. Cooling-water outlet
16. Outlet (backing connection)
17. Backing condenser
18. Baffle
19. Cooling-coil
20. Condenser fluid return pipe
21. Dipstick
22. Heater radiation shield
23. Mounting feet
24. Clamp plate
25. Heater retaining nut
26. Heater cover
27. Heater
28. Earth (ground) stud
29. Fluid drain plug
30. Pt100 temperature probe (optional)
31. Terminal box
32. Boiler base
33. Boiler
34. Jet stack fluid return pipe
35. Tie-rod
36. Cooling coupling
37. ‘T’ piece ‘O’ ring
38. ‘T’ piece
39. Jet gasket
40. Cooling coupling
41. Cooling-coil
42. Lower vapour tube
43. Lower jet cap
44. Second stage jet cap
45. Top cone assembly
46. Locating pin
47. Top jet cap
48. Setting dimension: 1.6 mm *
* This is the setting dimension for AP201 fluid.
This dimension may differ if you use a different
fluid: refer to Section 5.6.6.