1. Back Pressure Regulator Repair

2. Materials

3. Elastomers

4. What Makes a Regulator? + = Motor Valve Pilot Regulator Pilot

5. What Makes a Regulator?

6. Gas Pilot Operated Regulators

7. Three Basic Types of Regulation
Back Pressure
Pressure Reducing
Pressure Differential

8. Back Pressure Regulator
Maintains Constant Upstream Pressure
FLOW

9. Back Pressure Regulator
Maintains Constant Lower Downstream Pressure
FLOW

10. Back Pressure Regulator
Maintains Constant Differential Pressure
FLOW

11. Back Pressure Regulator

12. Operation – Back Pressure Regulator
Spring Opposes
Upstream Pressure
Pilot Supplies
Pressure
To Main
Diaphragm
Pilot Diaphragm
Senses Upstream Pressure
Seat Releases Right Amount of Gas
To Control Upstream
Pressure
Upstream Pressure

13. Operation
Three positions
The Key!

14. Below Setpoint – Closing Valve

15. Above Setpoint – Venting

16. At Setpoint – Both Ports Closed

17. Below Setpoint – Closing Valve

18. Above Setpoint – Venting

19. At Setpoint – Both Ports Closed

20. Disassembly

21. Disassembly

22. Disassembly

23. Disassembly

24. Disassembly

25. Disassembly

26. Disassembly

27. Disassembly

28. Inspection & Cleaning

29. Inspection & Cleaning

30. Inspection & Cleaning

31. Inspection & Cleaning

32. Inspection & Cleaning

33. Inspection & Cleaning

34. Inspection & Cleaning

35. Assembly

36. Assembly

37. Assembly

38. Assembly

39. Assembly

40. Assembly

41. Assembly

42. Assembly

43. Assembly

44. Assembly

45. Assembly

46. Assembly

47. Assembly

48. Testing

49. Testing

50. Testing

51. Thank You
Kimray, Sales & Service 215 Airport Road, Indiana, PA
© Kimray 2013

52. Header