Presentation on theme: "5/4/2015 1 Vacuum Regulator Gas Feed Systems: Theory and Maintenance Thom DiGeronimo OperatorSchool.Com."— Presentation transcript:
5/4/2015 www.OperatorSchool.com 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
5/4/2015 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
5/4/2015 www.OperatorSchool.com 3 Chlorine Gas Properties Amber Gas & Liquid Expands 460 Times Corrosive Non Flammable Poisonous @ 3PPM Heavy Gas Will Flow Chlorine Institute
5/4/2015 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 !!!
5/4/2015 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 !!
5/4/2015 www.OperatorSchool.com 6 Historic Chlorination Wallace & Tiernan “ Old Number 1” Circa 1913 Pressure Regulator
5/4/2015 www.OperatorSchool.com 7 Proper Materials used Properly Metals / Inlet-Screws-Yoke Body & Inlet Plastics O rings Tubing Piping
www.OperatorSchool.com 8 Superior Vacuum Regulators
5/4/2015 www.OperatorSchool.com 9 Ejector Designs ABS Body – Viton Gaskets & O Rings
5/4/2015 www.OperatorSchool.com 11 Vacuum Regulator Two Parts Separated by a Diaphragm Front is Vent Cavity Back is Vacuum Regulation Inlet Valve Mounting
5/4/2015 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
5/4/2015 www.OperatorSchool.com 13 Vacuum Regulator Diaphragm Flexured Plastic Material Separates Body Cavities Uses Vacuum / Barometric Pressure to Open Inlet Valve
5/4/2015 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