1. WILKERSON ® C O R P O R A T I O N Training For Growth Into the 21st Century A Marketing Services Presentation ©1998 Wilkerson Corporation

2. WILKERSON ® P r e s e n t s The MSD Series Membrane Dryer

3. The MSD Membrane Dryer

4. : Compact design  Simple and space-saving design  Compatible with 18/28 Series modular product line 9 No Moving parts u Simplified maintenance u No user purge adjustment  No electrical connections u Suitable for hazardous areas  No CFC’s / FC’s u Environmentally friendly

5. The MSD Membrane Dryer

6. : On a specific application leg off of a larger system : As THE dryer on a stand-alone system The MSD Membrane Dryer Applications

7. : On a specific application leg off of a larger system : As THE dryer on a stand-alone system The MSD Membrane Dryer Applications MSD Appl. MSD Appl. System dryer To system

8. Typical Applications The MSD Membrane Dryer Pneumatic controls Automation / robotics Telecommunications Optical instruments /precision instruments Packaging Electronics / semiconductor Air bearings / coordinate measuring machines Laboratories / medical / dental Auto paint spray

9. MSD Series Membrane Dryers

10. The MSD Membrane Dryer

11. “Proven Technology for reliable, dependable performance” M18 Filter MSD Dryer Membrane Bundle Individual Membrane Tube

12. Air Purge Water Oil “The system approach” “A coalescing prefilter is NOT an option with a Membrane Dryer! It is an integral part of the system.” - a famous pneumatic trainer MSD Dryer

13. Air Water Oil “The system approach” A good coalescing prefilter is necessary to remove bulk liquids and aerosols of oil and water at the inlet of the membrane dryer. Hydrocarbon (oil) molecules are much larger than water molecules, and will quickly plug the membrane pores, rendering it ineffective.

14. Air Purge Water Principle of Operation - Membrane Technology MSD Dryer

15. The MSD Membrane Dryer “Proven Technology for reliable, dependable performance” M18 Filter MSD Dryer Membrane Bundle Individual Membrane Tube

16. Individual Membrane Tube Membrane Bundle Consists of thousands of individual membrane tubes Cutaway and Close-up of Membrane Module

17. Air Purge Water Membrane Technology (individual membrane tube enlarged for clarity) Membrane Bundle Membrane Pores Purge orifice

18. Nitrogen molecules Oxygen molecules Membrane N2N2 O2O2 Water molecules H2OH2O Membrane pore size allows water to pass, but Nitrogen and Oxygen molecules bond in pairs and are too large to pass.

19. Oil (hydrocarbon) molecules are much larger than water molecules, and will quickly plug the membrane pores, causing dryer failure. Oil molecule Water molecule Membrane

20. The partial pressure of water vapor is usually referred to as the vapor pressure. It is the pressure the water vapor would exert if it existed alone at the temperature and volume of the mixture. P = P a + P v (kPa) Where: P = pressure of atmospheric air P a = partial pressure of dry air P v =partial pressure of water vapor

21. Air Purge Water Membrane Technology (individual membrane tube enlarged for clarity) Membrane Pores Purge orifice Membrane technology: (A.) The process is simple- Saturated (wet) air has a higher partial vapor pressure than dry air. Water molecules migrate through the membrane from higher partial vapor pressure to lower partial vapor pressure.

22. Air Purge Water Membrane Technology (individual membrane tube enlarged for clarity) Membrane Pores Purge orifice Membrane technology: (B.)As air at system pressure expands through the purge orifice, its partial vapor pressure lowers. This air then “sweeps” over the outer surface of the membrane, causing the water molecules (with higher partial vapor pressure) inside the system to migrate across the membrane. Water molecules migrate through membrane to purge air side

23. Additional Technical Information

24. Purge exhaust cover front view KA1 KA2 KB1 KB2 MSD Membrane Dryer Bowl adapter mounting screws Set screw

25. MSD Membrane Dryer Cutaway (Not a true cross-sectional drawing) Bowl Purge orifice Membrane Module Purge air exhaust Body casting w/ cover In Out

26. MSD Membrane Dryers Coalescing Prefilters are a must with membrane dryers. Hydrocarbon (oil) molecules will rapidly plug the membrane pores, quickly rendering the membrane ineffective. Automatic mechanical drain removes liquid oil and water contaminants from the system.

27. Key Features of the MSD Membrane Dryer w/ Prefilter: Mechanical DP indicator IN OUT Patented Modular Joiner set with mounting bracket 0.01 micron Coalescing Prefilter Exceeds ISO Class 1 for particulates and oil content ISO 8573-1:1991(E) Auto float drain Membrane technology tried and proven Purge exhaust has cover Easily serviced, no adjustments

28. Top end view Air flows DOWN through membrane tubes from this end Then UP through center tube to outlet UP

29. Protective cover Purge orifice Center tube Membrane bundle Purge air exits here Plastic sheath directs purge air over outside of membrane bundle.

30. Literature MSD Membrane Dryer

31. Sales Brochure 9CW-DX-233 7/98

33. We will add photos of specific applications and installations in the future

34. Powerpoint presentation uses same graphics as brochure for clarity and reinforcement

36. Front of fold-out page in Brochure 9CW-DX-233 7/98. Applies to selecting dryers on all four graphs To read this graph: Plot actual application point (dewpoint and adjusted flow rate) on chart. Closest curve DOWN and RIGHT of point is correct model for application. EXAMPLE: 3 SCFM @ 0ºF ADP. Model MSD-03-KA1D is correct model..

37. See previous slide

40. This page Under revision

41. Better customer support!

42. Competitive Analysis and Pricing MSD Membrane Dryer

43. “The Pipe”

44. Which is better, THIS...

45. The MSD System from WILKERSON!... or THIS!

47. Typical Applications : Pneumatic controls : Optical instruments /precision instruments : Automation / robotics : Packaging : Telecommunications : Electronics / semiconductor : Air bearings / coordinate measuring machines : Laboratories / medical / dental : Auto paint spray The MSD Membrane Dryer

48. : Compact design : Compatible with 18/28 Series modular product line - SYSTEMS APPROACH : No electrical connections : No CFC’s / FC’s Environmentally friendly : Simplified maintenance and installation : Versatile

49. The Wilkerson MSD Membrane Dryer System......

50. Make it…..