Tank Trucks:
Sulfuric Acid
DuPont uses dedicated tank trailers for the delivery of sulfuric acid. Typically, these trailers meet DOT 312 or 412 specifications and are constructed of stainless steel. Full loads are approximately 48000 lb (3150 gal).
Oleum/Sulfur Trioxide/CSA
DuPont uses specialized tank trailers for the delivery of oleum, SO3 or CSA. The trailers are dedicated to the product, and are designed for it with the following characteristics:
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3/8-inch thick stainless steel shell and heads
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Extra protection for the valves and fittings in dome area
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Internal unloading pump (DMS and SO3, optional for CSA and oleum)
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Closed-loop unloading
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Minimum 100-psig design pressure
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ASME code stamped and 100% x-ray welds
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No bottom flanges or outlets
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Bolted ASA manway covers
Rail Cars:
Sulfuric Acid
DuPont uses phenolic-lined, carbon-steel rail cars for transport of sulfuric acid. This minimizes the iron "pick-up" during transit. The rail cars are equipped with 165 psig rupture disks.
Oleum/Sulfur Trioxide/CSA
DuPont uses specialized rail cars for the delivery of oleum/SO3/CSA. The rail cars are dedicated to the product, and are designed for it with the following characteristics:
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0.625-0.844 inch thick shell and heads
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300-500 psig design pressure
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Stainless steel (CSA)
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Carbon steel (oleum/SO3)
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Extra protection for valves and fittings in the dome area
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Full head shields to reduce the possibility of accidental tank puncture during derailment
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Full shelf couplers to minimizes risk of tank puncture
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Rupture disk/relief valve assemblies set at 225 psig
Barge
Isotainer Tanks (CSA only)
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Minimum 3/8-inch thick stainless steel shell and heads
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Extra protection for valves and fittings in the dome area
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Closed-loop unloading capability
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Minimum 100-psig design pressure
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ASME code stamped and 100% x-ray welds
Closed-loop loading/unloading capability Portable Tanks, 220-Gallon
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Oleum/SO3/CSA
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Customer-dedicated reusable containers
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Minimum 3/8-inch thick stainless steel construction
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Extra protection for valves and fittings
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Closed-loop unloading capability
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Minimum 100-psig design pressure
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Handled by fork-lift or hoist
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Offers on-site storage
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Delivered via specially designed trailers
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ASME code stamped and 100% x-ray welds
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