Global Vessel & Tank solves common industry challenge! The solution is the Enviro-Flange™ for Direct Fired Process Equipment. No more Firetube failures when you specify Global’s Patent Pending Oval Raised Face Fire-Tube Flange to ANSI B16.5 /AMSE requirements. The use of the Enviro-Flange™ eliminates rubber gasket failures and allows for higher MAWP options for Heater Treaters and Heated Separators. Contact Global Vessel & Tank for improved safety and reduced downtime on your production facilities.