Durable. Compliant. Trusted.
Our USA-made oil-water separators protect the environment and help you stay compliant with EPA SPCC regulations.
“Decades of expertise paired with precision engineering.”
When it comes to managing oily wastewater and stormwater runoff, nothing beats decades of expertise paired with precision engineering. At Metal Products Company, we’ve been building dependable, USA-made oil-water separators since 1941.
Our separators are expertly crafted to remove oils, fuels, and hydrocarbons from water streams — helping you meet environmental standards and avoid costly fines. Built in Suwanee, GA and shipped nationwide.
building trust since 1941
proudly built in Suwanee, GA
designed for SPCC and stormwater standards
engineered for industrial strength
tailored to your facility's flow and footprint
municipalities, and contractors nationwide
Robust steel construction with corrosion-resistant coatings
Efficient separation using advanced coalescing plates
Easy access panels for inspection and maintenance
Multiple size options to match flow requirements
Engineered for variable industrial and commercial flow conditions
UL-listed and API 421 compliant gravity-coalescing wastewater treatment systems fabricated in Suwanee, GA. Guaranteed effluent compliance meeting EPA 40 CFR Part 112 (SPCC) clean water thresholds.
| System Model & Trademark | Flow Rate (GPM) | Oil Holding Capacity | Standards & Certifications | Discharge Effluent Purity | Typical Applications |
|---|---|---|---|---|---|
| AquaClean® Compact (10–75) Single or Double-Wall Compact footprint with removable parallel-corrugated coalescing packs for easy cleanout | 10 – 75 GPM | 100 – 500 Gal | UL 142 / UL 58 & EPA SPCC | < 10 mg/L (10 ppm) Free Oil | Auto dealerships, commercial quick lubes, small municipal vehicle wash bays |
| AquaClean® Standard (100–500) Single or Double-Wall Steel Integral grit and sand sediment chamber prevents sludge buildup on primary coalescing media | 100 – 500 GPM | 500 – 2,500 Gal | UL 142 / UL 58 & API 421 | < 10 mg/L (10 ppm) Free Oil | Commercial truck fleet wash facilities, transit bus depots, industrial maintenance yards |
| AquaClean® High-Flow (600–1,500) Double-Wall Insulated/Jacketed Multi-stage coalescer matrix capturing oil droplets down to 20 microns under surge flow conditions | 600 – 1,500 GPM | 2,500 – 6,000 Gal | UL 142 / UL 58 & API 421 | < 5 mg/L (5 ppm) with Polishers | Intermodal rail hubs, logistics centers, heavy equipment manufacturing plants |
| AquaClean® Industrial / Airport (1,500–3,000+) Heavy Double-Wall Carbon Steel High-volume emergency hydrocarbon spill stop valve with automatic shutoff float and remote telemetry | 1,500 – 3,000+ GPM | 6,000 – 15,000+ Gal | UL 58 / UL 142 & EPA SPCC | < 5 mg/L (5 ppm) Free Oil | Airport deicing and fueling aprons, military aircraft wash racks, bulk petrochemical terminals |
Available in both Aboveground (UL-142) and Subsurface Underground (UL-58) configurations with integrated electronic oil-level alarm telemetry.
Gas stations & fueling facilities managing petroleum runoff
Industrial sites with oily wastewater discharge
Municipalities focused on stormwater compliance
Commercial operations like fleet and auto service centers
Environmental engineers & contractors sourcing reliable solutions
"Your project deserves tanks built with experience."
Looking for tank solutions that combine heritage, quality, and unmatched reliability? Our team is ready to help.
Contact Our TeamThank you for considering Metal Products USA — where expertise meets reliability, and your tank project is our priority.
Access our latest installation guides, warranties, and product literature for oil-water separator systems.
Operation and maintenance manual for AquaClean Oil Water Separators.
Inspection and maintenance checklist for AquaClean Oil Water Separator systems.
Detailed design information and technical guide for oil-water separators.
Specifications and data sheet for low flow AquaClean units rated at 15 PPM.
Specifications and technical details for low flow AquaClean units rated at 10 PPM.
Product information for high flow AquaClean units with a 15 PPM discharge rating.
Specifications for high flow AquaClean units rated at 10 PPM discharge.
Marketing brochure highlighting AquaClean Oil Water Separator features and benefits.
Accessories guide and optional equipment list for AquaClean systems.
“Does this meet environmental regulations?”
Yes — our separators are manufactured to meet EPA SPCC, stormwater, and relevant local environmental codes.
“What separator size do I need?”
We'll collaborate with you to determine the right size based on your flow rate and operational needs.
“How easy is maintenance?”
Designed with practical access, our units are straightforward to inspect and maintain.
For over 80 years, clients nationwide have turned to Metal Products Company for fuel tanks and separators built to last.
“A regional trucking fleet in Texas recently installed our separator and passed stormwater inspections with ease.”
Thanks to our precise design and built-in reliability, clients consistently meet compliance requirements on the first inspection.
“Common questions about oil-water separators.”
An oil-water separator removes free oils, petroleum hydrocarbons, and suspended solids from industrial wastewater and stormwater runoff using Stokes' Law gravitational buoyancy separation and high-efficiency oleophilic coalescing media packs before safe environmental discharge.
Yes. Our oil-water separators are engineered to achieve effluent hydrocarbon discharge concentrations of 5 to 10 ppm, satisfying EPA SPCC rule 40 CFR Part 112, Clean Water Act NPDES discharge permits, and municipal wastewater pre-treatment ordinances.
Yes. Metal Products Company custom-engineers oil-water separators tailored to your facility's peak storm runoff flow rates (GPM), specific influent hydrocarbon concentrations, gravity or pumped inlet configurations, and below-grade or aboveground operational layouts.
Our oil-water separators are fabricated from heavy-gauge structural carbon steel or stainless steel, protected internally and externally with high-build chemical-resistant epoxy linings that resist petroleum acids, abrasive sand grit, and harsh wastewater chemicals.
Yes. Metal Products Company manufactures and ships oil-water separators nationwide, serving commercial fleet maintenance depots, military airports, railroad yards, utility substations, and industrial manufacturing facilities throughout all 50 states from our Suwanee plant.
Routine visual inspections of sludge accumulation and oil layer thickness should be conducted monthly, while scheduled sludge pumping and coalescing media pack washdowns are typically performed semi-annually or quarterly depending on facility wastewater volumes.
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