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TolPlast Company, Inc offers a complete line of steel tanks, options and accessories. The steel tanks we provide will meet or exceed the rigid specifications of Underwriter’s Laboratories, The American Petroleum Institute, and The Steel Tank Institute. Provided in mild steel or stainless steel, our tanks are used for water and wastewater, fuel and fuel oil, oil and grease separation, and other liquid storage applications. The steel tanks we supply are available in 185 gallon up to 50,000 gallon capacities.Steel tanks from TolPlast are offered in above ground, underground, horizontal, vertical, single-wall and double-wall designs. Some of the options we can provide on our steel tanks include compartment bulkheads, manholes, flanges, enamel, epoxy, or urethane coatings and special interior linings for aviation fuel, potable water and other liquids.

We offer Wastewater Process tanks that are ideal for your Leachate, Grey-Water, Retention and Septic Tank wastewater treatment requirements. TolPlast Company, Inc. understands the demanding requirements for collecting and storing hazardous wastewater. These tanks are designed and manufactured to the highest quality standards and subjected to random inspections by UL, and STI.

We provide steel Pressure Vessels. All of our Pressure Vessels meet the A.S.M.E. Pressure Vessel code and are registered with the National Board of Boiler and Pressure Vessels Inspectors. Carbon or stainless steel vessels for hot water storage, fire protection, hydro-pneumatic or chlorine contact applications can be manufactured with working pressures up to 150 psi.

Our tanks are ideal for aboveground and underground potable water storage. Ranging in size from 500 to 50,000 gallons, steel tanks are the right choice for dependable, cost-effective potable water storage. Whether your project requires cold-water storage, hot water storage, or chlorine contact mixing, we can provide a manufactured tank to meet your needs.

The steel Vertical Double-wall UL-142 tanks provide safe storage of flammable and combustible liquids using minimal space. Double-wall UL-142 tanks provide secondary containment for both bottom and shell (wall) surfaces maintaining a single-wall top. The outer shell is seal-welded to the inner shell, just below the top head. Emergency vent fittings are provided for the inner and outer tanks.

The steel Vertical Single-wall UL-142 tanks provide safe storage of flammable and combustible liquids using minimal space. All Single-wall UL-142 tanks are constructed with a single thickness of mild carbon steel meeting ASTM specifications, have continuous full-fillet welds, and lap joints for superior strength. Flat-flanged, coned or dished, full-fillet welded bottoms customize the tank to your needs. Coned or domed top heads shed rain and melting snow.

Our steel Horizontal Double-wall UL-142 tank is comprised of a primary steel tank wrapped by an exterior steel shell. All 360° of the annular space between the two tanks, known as the interstice, can be monitored for leak detection in either tank. Both walls of the Double-wall UL-142 have the same superior "ribbed" strength of the Single-wall UL-142 and are constructed with flat-flanged heads, continuous exterior fillet welds on all joints, and a 5 psi factory air test and seam inspection.

The steel Horizontal Single-wall UL-142 tanks are primarily designed for storing flammable and combustible liquids and use a single sheet thickness of steel meeting ASTM specifications. Superior "ribbed" strength is achieved with lap joints employing a minimum 1/2" overlap. Flat-flanged heads, continuous exterior fillet welds on all joints, and a 5 psi factory air test and seam inspection ensure quality.