1. Future Technology Already Proven C-Valves Piston Actuated Control Valves

2. Control Valve Types for Water Supply Linear Motion Rotary Motion Globe 1880-1970 Gate Diaphragm 1950 Pinch / Clamp Ball Valve Butterfly 1930 Plug Globe Angle Three-Way Multi-Level Knife Segmented Bore Full Bore Cylindrical Tapered Eccentric sphere Dark Blue represents the most common valves in water works and supply systems and their date of invention / modification

3. Globe

4. Diaphragm

5. Butterfly

6. Why Install a Control Valve?  Prevent water hammer – reduce pipe-bursts  Prevent over-pressure – reduce leakage  Minimize network maintenance  Prolong network life  Supply accurate & stable pressure  Maintain level – prevent over-flow or running dry  Limit flow  Dynamic pressure management

7. Why Replace a Control Valve? “Past experience and maintenance direct us when choosing the valve type…” (Baumann)  Cavitation  Erosion  Instability  Corrosion  Leakage and lack of sealing  Vibration  Reaction speed

8. C-Valves - M1 Principles of Design  Actuator is positioned parallel to the flow, and closes against the flow direction  Wide range of pressures and flow rates  Double chamber provides additional closing force  N.C. and N.O. options  Construction materials are highly resistant to cavitation, erosion and corrosion  Full sealing  Quick response  Opening characteristic enables stable regulation even at low flow rates and high pressures.

9. Normally Open M1 Valve Cross Sectional View and Operation Sequence

10. N.O. CLOSING

11. N.O. CLOSING

12. N.O. CLOSING

13. N.O. CLOSING

14. N.O. CLOSING

15. N.O. CLOSING

16. N.O. CLOSING

17. N.O. CLOSING

18. N.O. COMPLETELY CLOSED

19. N.O. OPENING

21. N.O. OPENING

22. N.O. OPENING

23. N.O. OPENING

24. N.O. OPENING

25. N.O. OPENING

26. N.O. OPENING

27. N.O. COMPLETELY OPEN

28. N.O. CLOSING

29. Normally Closed M1 Valve Cross Sectional View and Operation Sequence

30. N.C. CLOSING

31. N.C. CLOSING

32. N.C. CLOSING

33. N.C. CLOSING

34. N.C. CLOSING

35. N.C. CLOSING

36. N.C. CLOSING

37. N.C. CLOSING

38. N.C. COMPLETELY CLOSED

39. N.C. OPENING

40. N.C. OPENING

41. N.C. OPENING

42. N.C. OPENING

43. N.C. OPENING

44. N.C. OPENING

45. N.C. OPENING

46. N.C. OPENING

47. N.C. COMPLETELY OPENED

48. N.C. CLOSING