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04/11/23www.OperatorSchool.com1
Vacuum Regulator Gas Feed Systems: Vacuum Regulator Gas Feed Systems: Theory and MaintenanceTheory and Maintenance
Thom DiGeronimowww.OperatorSchool.comThom @ OperatorSchool.Com
All Text, drawings and photographs Copyrighted 2005 by T DiGeronimo
04/11/23www.OperatorSchool.com2
Seminar Highlights Seminar Highlights
Gases and PropertiesThe Vacuum Regulator / EjectorElement theory and functionDifferences by manufacturersWork and safety practicesPersonnel & Equipment Safety
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Chlorine Gas PropertiesChlorine Gas Properties
Amber Gas & Liquid Expands 460 Times Corrosive Non Flammable Poisonous @ 3PPM Heavy Gas Will Flow Chlorine Institute
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Sulphur Dioxide Gas PropertiesSulphur Dioxide Gas Properties
Gas & Liquid Expands many Times Corrosive Non Flammable Poisonous @ 3PPM Heavy Gas will Flow CGA makes rules
Overfilled Tanks can explode !!!
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Liquid to Gas PropertiesLiquid 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 !!
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Historic ChlorinationHistoric Chlorination
Wallace & Tiernan “ Old Number 1”
Circa 1913
Pressure Regulator
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Proper Materials used ProperlyProper Materials used Properly Metals / Inlet-Screws-Yoke Body & Inlet Plastics O rings Tubing Piping
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SuperiorSuperiorVacuumVacuum
RegulatorsRegulators
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Vacuum RegulatorVacuum Regulator
Two Parts Separated by a Diaphragm Front is Vent Cavity Back is Vacuum Regulation Inlet Valve Mounting
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Vacuum Regulator Diaphragm & BoltVacuum 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
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Vacuum Regulator DiaphragmVacuum Regulator Diaphragm
Flexured Plastic Material Separates Body Cavities Uses Vacuum / Barometric Pressure to Open Inlet Valve
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Inlet Valve AssemblyInlet Valve Assembly
Grooved Body Alumina Bronze ( Better: Hastalloy C) Guts Teflon, Monel ABS / PVC Gaskets / O Rings Viton or Buna N
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Inlet Valve DetailInlet Valve Detail
Vent Seat
Vent Plug
Valve Spring Assy
Inlet Seat
Inlet Plug
Inlet Filter
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Inlet Valve DetailInlet Valve Detail
Valve SpringAssembly
Inlet Seat
Inlet Plug
Inlet Filter
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Inlet Valve w/ Diaphragm DetailInlet Valve w/ Diaphragm Detail
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Inlet Valve w/ Diaphragm Detail - LeakInlet Valve w/ Diaphragm Detail - Leak
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Standard Hydro RegulatorStandard Hydro Regulator
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Flowmetering w/ Ecometrics @ 500 PPDFlowmetering w/ Ecometrics @ 500 PPD
Rotameter Metering Valve
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Maintenance problems 1Maintenance problems 1
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Maintenance problems 2Maintenance problems 2
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Auto-Switchover ValveAuto-Switchover Valve
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Latch – Switchover Detail 1Latch – Switchover Detail 1
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Latch – Switchover Detail 2Latch – Switchover Detail 2
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Ejector Designs Ejector Designs ABS Body – Viton Gaskets & O Rings ABS Body – Viton Gaskets & O Rings
04/11/23www.OperatorSchool.com25
Ejector Sizing ChartsEjector Sizing ChartsProper Inlet & Outlet PressuresProper Installation / Position
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Tank Valves & Fusible Plugs for Ton’sTank Valves & Fusible Plugs for Ton’sFusible Plugs on Both
Ends of Cylinders
w/ Cover – Gas / Liquid Valves – Eductor tubes<< Liquid – Gas >>
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Tank Connections w/ Flex’sTank Connections w/ Flex’s
Wrong way traps condensing liquidRight way drains it back to tank.
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Valves & AccessoriesValves & Accessories
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Safety “Equipment” RequiredSafety “Equipment” Required
SCBASCBAGas Leak DetectorGas Leak Detector
Leak Repair Kit A or BLeak Repair Kit A or B
Properly Trained Haz-Mat PeopleProperly Trained Haz-Mat People
A PLANA PLAN
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Approved 150 lb Cylinder StorageApproved 150 lb Cylinder Storage
Straps & Blocks - NO CHAINS - Straps & RackValve Covers on When NOT Being Used
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Un-ApprovedUn-Approved 150 lb Cylinder Capture 150 lb Cylinder Capture
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Yoke & Inlet Valve AssemblyYoke & Inlet Valve Assembly
Mounts the Regulator Inlet Valve Seals to Bottle Lead Washer Gasket
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Yoke & Inlet Yoke & Inlet Valve Valve AssemblyAssemblyLeak Leak TestingTesting
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Ejector Application by DiffuserEjector Application by Diffuser
Must Not Back Up FlowMust “Diffuse” the Solution in Flowstream
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Typical Systems 1 -- Capital ControlsTypical Systems 1 -- Capital Controls
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Typical Systems 2 -- Capital ControlsTypical Systems 2 -- Capital Controls
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Typical Chlorine – Sulfur Dioxide RoomTypical Chlorine – Sulfur Dioxide Room
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Service Systems 1Service Systems 1 www.OperatorSchool.com www.Start-UpService.com www.PVC-Creations.com
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Service Systems 2Service Systems 2 www.OperatorSchool.com www.Start-UpService.com www.PVC-Creations.com
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Where to Get More InformationWhere to Get More Information
Chlorine InstituteA.W.W.A. ManualsManufacturers Manualswww.OperatorSchool.comwww.Start-UpService.com