Quality Steel Tanks and Oil Water Separators Since 1946
Applied Process is proud to represent Steel tanks from Highland Tank.
The Steel Advantage Strong from the Start
* Potable water storage tanks
* Fire Protection water tanks
* Wastewater storage tanks
* Oil Water Separators
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Long considered the standard of the industry, Steel Water Storage Tanks and Oil Water Separators from Highland Tank offer superior strength, durability and craftmanship. Constructed with factory-welded carbon steel, each Highland storage tank is made to order, in both standard and custom sizes, to your application requirements.
 | Potable Water Tanks
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Highland highDRO® POTABLE WATER Storage Tanks
* Above and below ground options in 5’4”, 6’, 8’, 10’, 10’6” and 12’ diameter sizes.
* Vertical and horizontal
* Storage capacities from 185 to 70,000 gallons.
* Customizable with a variety of options including manways, stairs & ladders,
cages and catwalks.
* Built to ASME, ASTM, UL, AWWA and OSHA standards as applicable.
* NSF 61 compliant interior liners.
* Standard 24”, 30” and 36” manways
Learn how Highland Tank’s state-of-the-art Oil/Water Separators work.
Fire Protection Water Storage Tanks
Highland Steel FIRE SUPPRESSION TANKS
Highland HighDRO® welded steel Fire Protection Tanks are atmospheric tanks specifically designed for fire protection water storage and automatic sprinkler systems. They are constructed, tested and inspected in accordance with NFPA -22 standards.
highDro® Aboveground Vertical Fire Protection Tanks:
- Wide range of primer and topcoat options including ANSI/AWWA D102.
- Optional external ladders and platforms and OSHA ladders and safety cages when required.
- Flat Dished or Coned bottoms.
- Volumes from 2,000 to 60, 000 gallons
highDro® Aboveground Fire Protection Tanks:
- Wide range of primer and topcoat options including ANSI/AWWA D102
- Volumes from 1,500 to 60, 000 gallons
- UL Saddle supports
highDro® Underground Fire Protection Tanks:
- HighGuard Corrosion protection complying with UL-1746.
- Volumes from 2,000 to 60, 000 gallons
- Three pre-engineered design options – Bottom Drain, Pump Well and Vertical Suction
Wastewater Storage Tanks
Single Wall and Double Wall
Highland highDRO® Wastewater Storage Tanks
- For domestic, commercial industrial or agricultural liquid wastes.
- Above and below ground tank options.
- Watertight and leak-free.
- Liners designed to chemical, corrosion, pH and temperature considerations.
- Compliant with AWWA, NFPA, UL and API standards as required.
- Wide variety of manways, fittings and accessories.
Highland Underground Oil Water Separator
Highland Aboveground Oil Water Separator
Highland Aboveground & Underground OIL WATER SEPARATOR Tanks
Oil Water Separators are designed to separate and remove oil, grease and oil-coated solids from oil water mixtures. Highland OWS tanks all feature patented non-clogging Corella® coalescers to accelerate and heighten the separation process.
Standard Underground cylindrical OWS designs:
- Widely used in industrial, military and airport applications.
- Volumes from 350 to 60,000 gallons.
- Flow rates from 35 to 6,000 gpm
- Single-wall and double wall options
Standard Aboveground Cylindrical OWS designs:
- Used when belowground installation isn’t possible or when high flow rates are required.
- Volumes from 350 to 60,000 gallons.
- Flow rates from 35 to 6,000 gpm
- For gravity or pumped influent.
Standard Aboveground Rectangular OWS designs:
- Widely used in industrial applications for EPA discharge regulation compliance.
- Volumes from 100 to 30,000 gallons.
- Flow rates from 5 to 3,000 gpm
- Single-wall construction