OIL/WATER SEPARATION PRODUCTS

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Premier Oil/Water Separation ProductsOil exists on impervious surfaces in avariety of forms: emulsified, free,attached to solids, or soluble. CONTECH Stormwater Solutions byArmtec products help you meet regulations by capturing oil instormwater and keep it on-site, awayfrom the environment.

Why Oil/Water Separation?• Oil spill risk management

• Meets secondary containment requirements

• Effective NPDES stormwater BMP

• Oil spill prevention, control and countermeasure (SPCC) technology

About CONTECH StormwaterSolutions by ArmtecWhen you select CONTECH StormwaterSolutions, you'll get much more thanstormwater management products.You'll have dedicated, knowledgeableengineers and technical experts to helpyou select the right technology tomeet your regulations. Our organization is committed to preserving water resources by providing customized, site-specificstormwater treatment solutions. Andevery product is backed by the mostcomprehensive lab, field and independent testing in the industry.

Target Pollutants• Oil and grease• Fuel

Applications• Utilities

• Transformer yards

• Bulk oil tank farms

• Oil pipeline facilities

• Truck loading racks

• Locomotive fueling areas

• Commercial filling stations

• Maintenance facilities

VortClarex™• Removes up to 99.9% of free oil• Releases effluent with a quality in

the range of 10 mg/L or less• Installs and maintains easily• Non-turbulent flow-through

system increases separation• Minimal site work requires no

hold down straps• Precast concrete structure

ensures durability

• Underground, traffic-rated BMP maximizes land use

Oil Stop Valve• Uses existing storm drains and

pipes as secondary containment• Modular manhole design

simplifies installation• Requires no electrical power

to operate, and only periodic inspection

• Stainless steel materials and passive design with only one moving part ensures reliability

• Acts as a standalone structure or works in conjunction with an upstream oil/water separatorsuch as the VortClarex™

• Needs no operator adjustment or monitoring

• Is virtually maintenance free

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VortClarex™Highly efficient oil/water separation

VortClarex employs innovative coalescing media to remove free oilfrom contaminated stormwater flowsand help site owners comply with reg-ulations. The system is ideally suited forsites where specific effluent targets arespecified, or for sites where removal ofoil and grease is the greatest concern.

Conventional oil/water separators provide gravity separation by usingbaffles or T-sections, but are only effec-tive on oil droplets greater than 150microns. The VortClarex coalescingmedia maximizes surface area, increasing performance and effluentquality. It is typically sized to remove oildroplets as small as 60 microns, andachieve an effluent concentration of 10mg/L or less.

The VortClarex coalescing media ishoused within a precast concrete vault.Unlike other oil/water separators constructed of fiberglass or steel, itdoes not require anti-floatation hold-down straps or concrete traffic collars.Maintaining the system is easy using astandard water hose and vacuum truck,and the media can be cleaned eitherinside or outside the structure.

How does it work? Flows enter the VortClarex system viaa non-clog diffuser and are distributed across the chamber width.The influent passes over a solids baffle wall where settleable solidsdrop out, reducing the amount ofsolids in the flow as it enters the coalescing media. As the flow passesthrough the media, oily pollutantsaccumulate on the surface and comeinto contact with others to form larger, more buoyant droplets. These

buoyant droplets rise upward throughthe media and are released near thewater surface. The oil is trappedbehind the outlet T-pipe, and treatedwater exits the system.

VortClarex Accessories:Oil Skimmer

• Draws off excess oil between maintenance cycles

• Increase oil capacity of structure

• Extends maintenance intervals

VortClarex• Laminar flow-through media pack maximizes separation, and

increases rise rates and separation effectiveness• Polypropylene coalescing media treats droplets as small as 60

microns and is easy to clean• Precast concrete structure ensures durability, meets HS-20

loading requirements, and is easy to install

INLET PIPE

NON-CLOGDIFFUSER

MANHOLE

HATCH

OUTLETPIPE

SOLIDS BAFFLE WALL

COALESCING MEDIA

OUTLETT-PIPE

INLET PIPE

NON-CLOGDIFFUSER

MANHOLE

HATCH

OUTLETPIPE

SOLIDS BAFFLE WALL

COALESCING MEDIA

OUTLETT-PIPE

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The Oil Stop Valve reduces the risk of catastrophic oil spills beingreleased from your site. The fullyadjustable float accommodates any oil type, oil depth, or alarm condition. A simple mechanism, fewmoving parts, and corrosion resistant stainless steel constructionensure long product life.

How it works 1. In a spill situation, free oil and

stormwater flow into the manhole containment structure through thestorm drain pipe inlet and stop valve. While the floating oil accumulates on the water surface in the structure, clean water exits through the skimmer pipe. As the layer of oil gets thicker, the stainless steel float, calibrated to the density of water, begins to sinkin the lighter oil.

2. When the accumulated oil reaches a predetermined depth, the float sinks, which triggers thelever and closes the stop valve. The closed valve prevents additional oil or stormwater fromflowing through the structure and leaving the site until the unitis reset.

Oil Stop Valve Comprehensive risk management

Oil Stop Valve features• Precise adjustment for oil type and depth• Stainless steel construction • Optional alarm conditions

MANHOLE

STORM DRAININLET PIPE

STOP VALVE OUTLET PIPE

SKIMMER PIPE

STAINLESSSTEEL FLOAT

ACCUMULATED OIL

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Available ModelsUse this table to identify the appropriate configuration for your site. Our engineers are available to assist you with your project.

Typical Treatment Recommended Pipe SizeVortClarex Dimensions Sump Depth Flow Inlet/Outlet

ft m ft m gpm lps in mm

VCL30 6 x 3 1.8 x 0.9 3.75 1.14 110 6.9 6 150

VCL40 8 x 4 2.4 x 1.2 3.75 1.14 150 9.6 6 150

VCL60-1 12 x 6 3.7 x 1.8 3.58 1.09 225 14.2 8 200

VCL60-2 12 x 6 3.7 x 1.8 3.58 1.09 440 27.7 10 250

VCL80-1 16 x 8 4.9 x 2.4 3.25 0.99 300 18.9 12 300

VCL80-2 16 x 8 4.9 x 2.4 3.42 1.03 620 39.1 12 300

VCL80-3 16 x 8 4.6 x 2.4 3.42 1.03 880 55.5 12 300Typical Depth Treatment Max. Size

Oil Stop Valve Diameter (below invert) Capacity Inlet/Outletft mm ft m gpm lps in mm

OSV100† – – 100 6.3

OSV148 4 1.22 4 1.22 100 6.3 4 102

OSV160 5 1.52 4 1.22 100 6.3 4 102

OSV300† – – 280 17.7

OSV360 5 1.52 5 1.52 280 17.7 6 152

OSV372 6 1.83 5 1.52 280 17.7 6 152

OSV500† – – 500 31.5

OSV560 5 1.52 5 1.52 500 31.5 8 203

OSV572 6 1.83 5 1.52 500 31.5 8 203† This model includes valve only, no structure.

Head Office: 370 Speedvale Ave.W., P.O. Box 3000, Guelph, ON N1H 6P2www.armtec.comNanaimo, Prince George, Vancouver, Edmonton, Calgary, Lethbridge, Saskatoon,Winnipeg, Thunder Bay, Sudbury, Guelph, Toronto, Peterborough, Chesterville,Forest, Orangeville, Comber, Montreal, Quebec City, St. Clet, Sackville, Truro,Bishop’s Falls and St. John’s.

The product(s) described may be protected by one or more of the following US patents: 5,322,629; 5,624,576; 5,707,527; 5,759,415; 5,985,157; 6,027,639; 6,350,374;6,406,218; 6,649,048; 6,991,114; related foreign patents; or other patents pending.VortClarex is a trademark of CONTECH Stormwater Solutions Inc.

Support & MaintenanceOur Goal: to remove stormwater pollutants

• Drawings and specifications are available at contechstormwater.com.

• Design support is available from our Technical Sales engineers, to provide site-specific solutions.

• Full maintenance services are available to maximize performance and ensure long-term product viability.

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