requirements of Underwriter' Laboratories, Incorporated cover horizontal
and vertical factory-completed welded cylindrical steel tanks intended
for above ground and underground storage of flammable and combustible
liquids at pressures between atmospheric and 0.5 psi gauge. They are intended
for use with non-corrosive, stable fluids only, which have a specific
gravity not exceeding that of water. They are intended for stationary
installations in accordance with the flammable and combustible liquids
code of the National Fire Protection Association, Incorporated, NFPA Pamphlet
Number 30, NFPA Number 30A, NFPA Number 31 and NFPA Number 37. These requirements
do not cover welded steel production tanks employed in oil field service.
small Horizontal Fuel Tanks 285 gallon (38" x 5'-0") through
4000 gallon (64" x 23'-10")
|Standard Large Horizontal Fuel Tanks|
tanks may be furnished bearing Underwriters' Laboratories label for either
above-ground or underground service. 5000 gallons (72" x 23'-8")
through 50,000 gallons (144" x 59'-3").
|DOUBLE WALL TANKS|
|A Secondary Containment Steel Tank|
of a complete tank enclosed within a secondary tank, provided with means
for monitoring the space between the inner and outer wall for leakage
through either wall. Secondary containment tanks are of either Type I
or Type II construction, defined as follows.
|Type I Tank|
primary tank wrapped by an exterior steel shell that is in direct contact
with the primary tank where the exterior shell may be wrapped the full
360 degrees of the primary tank circumference, or as little as 300 degrees.
|Type II Tank|
outer tank physically separated from the inner primary containment tank
by standoffs where the inner tank is completely contained within the outer
tank and provided with a means for monitoring the annulus (space between
inner and outer tank) for a leak in either vessel.
|VERTICAL ABOVEGROUND TANKS|
|Thickness of tank shells and bottom are all per UL/API above ground tank standards. 3,000 gallons (96" x 8'-0" shell height) through 29,600 gallons (144" x 35'-0"). We can build smaller vessels though loose bolt M/H may not apply.|
|DOUBLE WALL VERTICAL ABOVEGROUND TANKS|
|Copyright © 1997 Adamson Global Technology Corporation|