Samples of High Purity Water Components / Devices

1. High Purity WaterHigh Purity Water
ProductionProduction
by Gary L Burgessby Gary L Burgess
April 16, 2007April 16, 2007

2. Fluidization /
Backwash prior
to Regeneration

3. Beginning
Separation in
Mixed Bed
Ion Exchanger

4. Start of
Separating of Ion
Exchange
Components

5. Separation of
Anion / Inert
Belt / Cation
Begins

6. Anion – Yellow
Blue – Inert
Navy - Cation

7. Compaction

8. Cation Bed
Formed

9. Anion Bed
Forming with
Fines / Lighter
Beads

10. Anion Resin
Compacting

11. Anion Fines

12. Mixed Bed
Ready for Acid
- HCl and
Caustic -
NaOH
Addition

13. Reverse Osmosis Pure Water Collected in Hollow Fiber – BioPharm
Diafiltration Flow is generally from Hollow Center Out

14. Spiral Wound Reverse Osmosis Element

15. RO note the Holes on Center Collector

16. Inlet End of Feed water to Spiral Wrappings with Center Collector

17. RO Spiral Windings Course Spacer, Membrane(s), Inner Spacer

18. RO Sealed Envelope with Feed Spacer / Mesh

19. RO with Inner Spacer – End is not sealed for Inner Spacer Illustration

20. Cavity “Dead” Area or Why Ball Valves are Generally not Acceptable

21. Diaphragm Valve – Weir Dam

22. Weir Dam not Fully Drainable in Vertical Orientation

23. Tip the Body on a 8 to 28 +/- Degree Angle depending on Size / Mfg & It is Drainable

24. Approximate Angle
for Free Draining
for Properly
Designed
Diaphragm Valve

25. Get ‘R’ Done – Welding Plastic Piping – ECTFE / Halar

26. Gaps or Contaminations and Bacterial Homes – Out of Round ECTFE

27. Polypropylene Butt Weld –
Recess Areas & Horizontal
Dam

28. PVDF Butt Well
– Horizontal Dam

29. PVDF – Socket Weld – Smaller Dam – Less or No Recess Area

30. PP Electrical Current Weld – Note Bevel and Bacterial Contamination Potential

31. PVDF First Generation Seamless Weld
– some diameter variation

32. PFA – Perfluoroalkoxy Butt Weld
– Translucent Shows Internal Scratch

33. UHMW Polyethylene almost Seamless Butt-weld with Slight Damming

34. PVDF – Seamless Second Generation Weld – Internal Mandrel / Balloon

35. PVDF Weld – Note Fitting Different
Diameters & Rollover
or Curl Under of Weld

36. PVDF Butt-weld – Hot Plate Heats the Ends – then the Components are Pressed
Together

37. Lined Pipe – ECTFE Glass Like Smooth Bore – Flanging and Gaskets are less than
Ideal

38. Lined ECTFE Can Span Long Distances with Minimum Sagging

39. Timing and Temperature along with Cut and Pressure All
Critical for a Pure Weld

40. Perfection in Plastic Welding

41. Bronze – Tin Lined Pipe
- First in High Purity
Piping and Still Used
in Certain Applications
– Low Solubility

42. Tank Linings – Spray on PVC’s

43. PVC Plate with Weld Rod Weld

44. PTFE Backing Weld – Large Dam in Horizontal in a Tank

45. PVDF Welding Rod – Raised Area on Both Sides – Potential Tank Separation

46. Better View of PVDF Weld

47. FEP Lining with Textile Bonding Backing to Tank Wall

48. FEP Smooth and Flat Weld

49. PVDF Plastic Sheets – Critical to Shipping Clean and Preventing Fabrication Scratching

50. Better View of Fabrication Bonding / Backing

51. Hose Barb in which 2 or 3 Barbs Have Corroded Away in a Few Months because of
Stray Currents in Water Cooled Rectifier