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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

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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

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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