Enviro-Flange
TM
Anti-Leak Pressure & Liquid Retaining Oval Fire-Box Flange
For Heated Oil, Water, & Gas Pressure Vessel
Complete Oil & Gas Process Equipment Solutions
After Years in the oil & gas industry and around various types
of oil process equipment, it is time for some change. Process
equipment designs have pretty much been the same since the
inception early on with little innovation.
One particular pressure vessel that needs change is the
emulsion/oil treater, or heated separator. This particular vessel
is a direct fired vessel that uses a U-tube style fire tube in the
water or sometimes oil section of the vessel to heat emulsions
or paraffin, giving better separation. This vessel is found on
both land locations and offshore platforms. It is most commonly
used in very low pressure applications or artificial lifted wells.
This particular vessel has been built the same way as long it
has been around. The original design for this vessel was for
very low pressure service, typically with a Maximum Allowable
Working Pressure (MAWP) of 25psi. Then, as time went on,
users expected more; MAWP went up to 50psi, then 75psi,
and up to 125psi. Soon, some units were built with an MAWP
of 250psi at sizes over 8 feet in diameter, Very Unsafe. The
main part of this vessel that sustained the most abuse was the
fire tube flange. Until now, this flange has been just a flat faced
plate with a neoprene rubber gasket compressed between the
two flanges.
As the pressure is rising, the flanges and gaskets are failing!
As a major process equipment manufacturer we have seen our
share of leaks, fires, spills, etc. It is time for the end user, buyer,
or facility owner to realize the risk at hand at any moment.
All manufacturers are building these vessels the same and
are having their fair share of trouble with issue at hand. Field
personnel would definitely agree with this issue. Machine
technology has finally advanced to allow us to develop a better
product and make old technology obsolete.
One more common problem that field personnel face is they
do not have the ability to change out fire tubes with ease.
Manufacturers each make their own cut flange version; not
one manufactures fire tube replaces another. Fire tube must
be sent into a fabricator to have fire tube pipe repaired or
replaced. There are huge costs and production down time
associated with this. Multiple companies have either closed or
sold out, so for end user to repair vessel it is very challenging.
Patent Pending
www.globalvesselandtank.com • [email protected] for inquires
The Solution:
An Oval Raised Face Flange built to ANSI B16.5 Class
75,150,300,600, or 900 series specifications. Also a blind
mating flange to accommodate correct fire tube flange
size with a Non-Asbestos sealing gasket.
The use of the Enviro-Flange on your Direct Fired Process
Equipment from Global Vessel & Tank will eliminate the
current risks associated with an obsolete industry design!
Problems
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Rubber Gasket Failures
Environmental Impact & Clean Up Costs
Fire Hazzard
Personnel Injury
Loss Production & Negative Publicity as an Operator
Difficult to Replace or Repair Fire tube
Solutions
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Improved Safety
Reduce Liability Exposure
Easy Replacement
ANSI Bolting Requirements
Higher MAWP Options
Reduced Downtime
Ready On Shelf Item
Adaptable to all existing fired vessels regardless of
Manufacturers
Patent Pending
Complete Oil & Gas Process Equipment Solutions
Lafayette, LA New Iberia, LA Longview, TX Laurel, MS Union City, OK (337) 534-8925
(337) 365-4911
(903) 212-3137
(601) 649-5300
(405) 483-5145
www.globalvesselandtank.com • [email protected] for inquires