Presentation on theme: "10/12/2014 1 Vacuum Regulator Gas Feed Systems: Theory and Maintenance Thom DiGeronimo OperatorSchool.Com."— Presentation transcript:
10/12/ Vacuum Regulator Gas Feed Systems: Theory and Maintenance Thom DiGeronimo OperatorSchool.Com All Text, drawings and photographs Copyrighted 2005 by T DiGeronimo
10/12/ Seminar Highlights Gases and Properties The Vacuum Regulator / Ejector Element theory and function Differences by manufacturers Work and safety practices Personnel & Equipment Safety
10/12/ Chlorine Gas Properties Amber Gas & Liquid Expands 460 Times Corrosive Non Flammable 3PPM Heavy Gas Will Flow Chlorine Institute
10/12/ Sulphur Dioxide Gas Properties Gas & Liquid Expands many Times Corrosive Non Flammable 3PPM Heavy Gas will Flow CGA makes rules Overfilled Tanks can explode !!!
10/12/ 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 !!
10/12/ Historic Chlorination Wallace & Tiernan “ Old Number 1” Circa 1913 Pressure Regulator
10/12/ Proper Materials used Properly Metals / Inlet-Screws-Yoke Body & Inlet Plastics O rings Tubing Piping
8 Superior Vacuum Regulators
10/12/ Vacuum Regulator Two Parts Separated by a Diaphragm Front is Vent Cavity Back is Vacuum Regulation Inlet Valve Mounting
10/12/ 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
10/12/ Vacuum Regulator Diaphragm Flexured Plastic Material Separates Body Cavities Uses Vacuum / Barometric Pressure to Open Inlet Valve
10/12/ Inlet Valve Assembly Grooved Body Alumina Bronze ( Better: Hastalloy C) Guts Teflon, Monel ABS / PVC Gaskets / O Rings Viton or Buna N