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Drive Over Foam Unit

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  • Applies foaming product to vehicle underbody
  • Works with trucks and passenger vehicles
    • Vehicle ground clearance: 7-49 in. (17.8-124.5 cm)
    • Vehicle weight: up to 40,000 lbs (18.14 metric tons) per axle
  • Sensor-operated system starts when vehicles approach - no need for an attendant
  • Foam provides long contact times for maximum chemical effectiveness, and a visual way to verify coverage
  • Easy to install
  • Draws from concentrated product (includes proportioning tank)
  • Dilutes at ratios of 4:1 to 530:1 (water:chemical)
  • Powered by compressed air and electricity
  • Low-pressure system
  • Includes water separator to protect pumps
Compressed air requirements50 psi (3.4 bar) with 20 cfm (566.3 l/min)
Water requirements25-100 psi (1.7-6.9 bar)
Backflow prevention is required – consult local plumbing ordinances for more information.
Liquid temperature range40-100˚F (4.4-37˚C)
Electrical requirements120 VAC at 60 Hz, 2 amps (GFCI protected outlet)
Operating voltage120 VAC
Chemical compatibilityChemical products used with this equipment must be formulated for this type of application and compatible with unit materials and pump seals. For more information on chemical compatibility, consult the manufacturer or SDS for your product or contact our customer service department.
Power typeCompressed air and electricity
Chemical pickup typeDraws from concentrated product (includes proportioning tank)
Dilution ratio range (water:chemical)4:1 to 530:1
NOTE: Approximate dilutions at 40 psi (2.6 bar) water pressure for water-thin products at 1.0 cP.
Number of products unit can draw fromOne product
Suction line length/diameterFrom proportioning tank to chemical source: one suction line, 9 ft. (2.7 m) of clear hose with 1/2 in. (12.7 mm) inside diameter
From pump box to proportioning tank: six suction lines, each 10 ft. (3.1 m) of blue hose with 3/8 in. (9.5 mm) inside diameter
CapacityProportioning tank: 55 gallons (208.2 liters)
Flow rate13 gal/min (49.2 l/min)
NOTE: Flow rate based on chemical with viscosity of water and factory air settings.
Pump sealsSantoprene, Viton, or Kalrez
Number of nozzlesIncludes five ramp nozzle assemblies and two side nozzle assemblies
Distance from nozzles to control panelMinimum: 30 ft. (9.1 m)
Maximum: approximately 50 ft. (15.2 m)
Tubing/fitting sizesDesigned for use with 1/2 in. (12.7 mm) inside diameter hose between control panel and nozzles
Vehicle ground clearance7-49 in. (17.8-124.5 cm)
Coverage areaWith 7 in. (17.8 cm) vehicle ground clearance, coverage area will be up to 65 in. (165.1 cm) wide.
With 49 in. (124.5 cm) vehicle ground clearance, coverage area will be up to 102 in. (259.1 cm) wide.
Vehicle weightUp to 40,000 pounds (18.14 metric tons) per axle
Ramp width12 ft. (3.6 m)
Traffic flow directionSuitable for traffic moving in one or both directions
Sensor typeDetects moving iron-based metal

What's in the box?

  • 55 gallon (208.2 liter) proportioning tank
  • Control panel assembly
  • Ramp (in 4 sections)
  • 5 ramp nozzle assemblies
  • 2 side nozzle assemblies
  • Sensor
  • 230 ft. (70.1 m) of 1/2 in. (12.7 mm) inside diameter blue hose
  • Control panel mounting hardware
  • User manual


 Pump Seal Options
FI-DOFSantoprene (standard)
Viton (V)
Kalrez (K)

Add bold option codes to item number as shown. For standard options, no option code is needed. Examples:

  • FI-DOF (standard unit with Santoprene pump seals)
  • FI-DOFV (unit with Viton pump seals)

Pump Seal Material Compatibility

Need help with sales or support?


616.656.9225 or 800.567.5420