W-20SS Sanitize / Hyper SS Foam Hose Drop Station

Model # 917120

The W-20SS Sanitize / Hyper SS Foam Hose Drop Station is a combination applicator for quickly applying one chemical as foam at 3.3 GPM @ 700 PSI and another as a sanitizing spray through separate hoses. This stainless steel venturi injection system uses high water pressure (400 - 1000 PSI) to draw and blend chemical concentrates into the water streams to create accurately diluted solutions using precision metering tips to control chemical usage. Rich, clinging foam is created by injecting compressed air into the foaming solution to greatly increase volume and coverage ability. The foaming solution is then projected through the foam hose and fan nozzle on to any surface up close or at distances up to 13 feet. Sanitizer solution, or any other chemical, is projected using the trigger gun and fan nozzle.

Key Features
  • Designed to foam and sanitize medium to large surfaces
  • Projects a substantial volume of rich, clinging foam which increases chemical contact time and effectiveness
  • Foaming expands the chemical and reduces over-application by providing visual assurance of coverage
  • Fan pattern foam nozzle for fast coverage (up to 13' range)
  • Covers up to 500 sq ft (46.5 sq m) in 1.5 minutes
  • Optional zero degree nozzle for increased range
  • Adjustable foam consistency (wet/dry)
  • Sanitize using a dedicated hose, trigger gun & fan nozzle
  • Stainless steel components ensure durability and years of trouble-free performance
  • Industrial-strength design holds up in tough environments
  • Available without a sanitize function (#917115)
  • Available with a lower flow rate (#918120)
  • See other high water pressure foamers in Catalog 3


  • Stainless steel mounting bracket
  • Stainless steel inlet ball valves
  • Machined stainless steel foamer and sanitizer bodies
  • 20 color-coded precision metering tips to set dilution ratios
  • 50' foam hose, polypropylene open flow wand & fan nozzle
  • 50' sanitize hose, trigger gun & stainless steel fan nozzle
Chemical Concentrate
Temperature up to 180°F
Pressure 400 to 1000 PSI
Flow 3.3 GPM @ 700 PSI
Supply Line 3/8"
Compressed Air up to 5 CFM
Sanitize 3/8" ID x 50'
Foam 3/4" ID x 50'
Sanitize 2520
Foam 65300
Dilution Ratio Range @ 700 PSI
Sanitize 711:1 to 7:1
Foam 756:1 to 8:1
Stainless Steel Hose Racks
Large Stainless Steel Hose Rack# 224150
Stainless Steel Jug Racks Available
Optional Zero Degree Nozzle (For Increased Range)
Nozzle, NPB, 3/4" - 00400# 180154
Alternate Check Valve - EPDM Standard
Check Valve, Chemical, SS, Viton, 1/4"# 491324-V
Alternate Check Valves - EPDM Standard
Check Valve, Chemical, PP/Viton, 1/4"# 491315
Check Valve, Air, SS/Viton, 1/4"# 491306
Lafferty Equipment Manufacturing, Inc.
5614 Oak Grove Road
North Little Rock, AR 72118
TFN: 1-800-999-2820

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