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Vacuum Regulator Gas Feed Systems: Theory and Maintenance

Vacuum Regulator Gas Feed Systems: Theory and Maintenance. Thom DiGeronimo www.OperatorSchool.com Thom @ OperatorSchool.Com All Text, drawings and photographs Copyrighted 2005 by T DiGeronimo. Seminar Highlights . Gases and Properties The Vacuum Regulator / Ejector

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Vacuum Regulator Gas Feed Systems: Theory and Maintenance

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  1. Vacuum Regulator Gas Feed Systems: Theory and Maintenance Thom DiGeronimo www.OperatorSchool.com Thom @ OperatorSchool.Com All Text, drawings and photographs Copyrighted 2005 by T DiGeronimo www.OperatorSchool.com

  2. Seminar Highlights • Gases and Properties • The Vacuum Regulator / Ejector • Element theory and function • Differences by manufacturers • Work and safety practices • Personnel & Equipment Safety www.OperatorSchool.com

  3. Chlorine Gas Properties • Amber Gas & Liquid • Expands 460 Times • Corrosive • Non Flammable • Poisonous @ 3PPM • Heavy Gas Will Flow • Chlorine Institute www.OperatorSchool.com

  4. Sulphur Dioxide Gas Properties • Gas & Liquid • Expands many Times • Corrosive • Non Flammable • Poisonous @ 3PPM • Heavy Gas will Flow • CGA makes rules Overfilled Tanks can explode !!! www.OperatorSchool.com

  5. Liquid to Gas Properties • Coefficient of expansion • Needs minimum headroom With a FULL TANK Liquid expansion at any temperature can cause the tank to fail or explode !! www.OperatorSchool.com

  6. Historic Chlorination Wallace & Tiernan “ Old Number 1” Circa 1913 Pressure Regulator www.OperatorSchool.com

  7. Proper Materials used Properly • Metals / Inlet-Screws-Yoke • Body & Inlet Plastics • O rings • Tubing • Piping www.OperatorSchool.com

  8. SuperiorVacuumRegulators www.OperatorSchool.com

  9. Ejector Designs ABS Body – Viton Gaskets & O Rings www.OperatorSchool.com

  10. Ejector Sizing Charts • Proper Inlet & Outlet Pressures • Proper Installation / Position www.OperatorSchool.com

  11. Vacuum Regulator • Two Parts Separated by a Diaphragm • Front is Vent Cavity • Back is Vacuum Regulation • Inlet Valve Mounting www.OperatorSchool.com

  12. Vacuum Regulator Diaphragm & Bolt • Flexured Plastic Material Separates Body Cavities • Front has pin for Indication and Control • Back has Vent Valve • Can be Spring Loaded to Inlet Valve • Uses Vacuum / Barometric Pressure to Open Inlet Valve www.OperatorSchool.com

  13. Vacuum Regulator Diaphragm • Flexured Plastic Material Separates Body Cavities • Uses Vacuum / Barometric Pressure to Open Inlet Valve www.OperatorSchool.com

  14. Inlet Valve Assembly • Grooved Body Alumina Bronze ( Better: Hastalloy C) • Guts Teflon, Monel ABS / PVC • Gaskets / O Rings Viton or Buna N www.OperatorSchool.com

  15. Inlet Valve Detail Vent Seat Vent Plug Valve Spring Assy Inlet Seat Inlet Plug Inlet Filter www.OperatorSchool.com

  16. Inlet Valve Detail Valve SpringAssembly Inlet Seat Inlet Plug Inlet Filter www.OperatorSchool.com

  17. Inlet Valve w/ Diaphragm Detail www.OperatorSchool.com

  18. Inlet Valve w/ Diaphragm Detail - Leak www.OperatorSchool.com

  19. Standard Hydro Regulator www.OperatorSchool.com

  20. Flowmetering w/ Ecometrics @ 500 PPD • Rotameter • Metering Valve www.OperatorSchool.com

  21. Maintenance problems 1 www.OperatorSchool.com

  22. Maintenance problems 2

  23. Auto-Switchover Valve www.OperatorSchool.com

  24. Latch – Switchover Detail 1 www.OperatorSchool.com

  25. Latch – Switchover Detail 2 www.OperatorSchool.com

  26. Tank Valves & Fusible Plugs for Ton’s Fusible Plugs on Both Ends of Cylinders w/ Cover – Gas / Liquid Valves – Eductor tubes<< Liquid – Gas >> www.OperatorSchool.com

  27. Tank Connections w/ Flex’s Wrong way traps condensing liquidRight way drains it back to tank. www.OperatorSchool.com

  28. Valves & Accessories www.OperatorSchool.com

  29. Safety “Equipment” RequiredSCBAGas Leak DetectorLeak Repair Kit A or BProperly Trained Haz-Mat PeopleA PLAN www.OperatorSchool.com

  30. Approved 150 lb Cylinder Storage Straps & Blocks - NO CHAINS - Straps & Rack Valve Covers on When NOT Being Used www.OperatorSchool.com

  31. Un-Approved 150 lb Cylinder Capture www.OperatorSchool.com

  32. Yoke & Inlet Valve Assembly • Mounts the Regulator • Inlet Valve Seals to Bottle • Lead Washer Gasket www.OperatorSchool.com

  33. Yoke & Inlet Valve AssemblyLeak Testing www.OperatorSchool.com

  34. Ejector Application by Diffuser Must Not Back Up Flow Must “Diffuse” the Solution in Flowstream www.OperatorSchool.com

  35. Typical Systems 1 -- Capital Controls www.OperatorSchool.com

  36. Typical Systems 2 -- Capital Controls www.OperatorSchool.com

  37. Typical Chlorine – Sulfur Dioxide Room www.OperatorSchool.com

  38. Service Systems 1 • www.OperatorSchool.com • www.Start-UpService.com • www.PVC-Creations.com www.OperatorSchool.com

  39. Service Systems 2 • www.OperatorSchool.com • www.Start-UpService.com • www.PVC-Creations.com www.OperatorSchool.com

  40. Where to Get More Information • Chlorine Institute • A.W.W.A. Manuals • Manufacturers Manuals • www.OperatorSchool.com • www.Start-UpService.com www.OperatorSchool.com

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