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Figure Number: 2694
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2694Trap-Defender® Pressure Drop Automatic Trap Primer

Trap-Defender® is a pressure drop-activated automatic trap primer designed to be connected to any potable cold water line. It is automatically activated when a pressure drop as low as 3 PSI occurs. The control valve releases water into the floor drain’s P-trap to maintain a seal.

Automatic Trap Primers feature:

  • Operates with 3 PSI pressure drop
  • Operates at pressures from 20–80 PSI
  • Fully automatic
  • Lead-free brass with 1/2" NPT
  • 1/2" NPT Union and 1/2" Sweat Union available

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WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov - Learn More about this warning
Shows specifications for standard configuration. Configuration options may change specifications.
  • Optional Materials
    Nickel Plated -NP
  • Variations
    Fig. 2694-UN 1/2"(13) NPT Union, Fig. 2694-SW 1/2"(13) Sweat Union, (2) 3/8” (10) Tappings -TAP
  • Compliance/Certifications
    cUPC, ASSE 1018 Listed Seal No.143
  • Patent
    9,708,808 & 10,190,306
SubmittalSubmittal 2694 Trap Primer (pdf)
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Technical Drawings
DWG 2694 Trap PrimerTrap-Defender™ Pressure Drop Activated Trap Seal PrimerDWG393 KB
RFA 2694 Trap PrimerTrap-Defender™ Pressure Drop Activated Trap Seal PrimerRFA472 KB
Literature / Videos
MasterSpec: 221119, Domestic Water Piping Specialties (doc)Vacuum breakers, Backflow preventers, Water pressure-reducing valves, Automatic water shutoff valve systems, Balancing valves, Temperature-actuated, water mixing valves, Strainers for domestic water piping, Outlet boxes, Hose stations, Hose bibbsDOC262 KB
MasterSpec: 221119, Domestic Water Piping Specialties (pdf)Vacuum breakers, Backflow preventers, Water pressure-reducing valves, Automatic water shutoff valve systems, Balancing valves, Temperature-actuated, water mixing valves, Strainers for domestic water piping, Outlet boxes, Hose stations, Hose bibbsPDF208 KB
Kwik Ship® Brands: Smith Fluid Controls (pdf)Kwik Ship® Brands: Smith Fluid Controls (pdf)PDF780 KB
Kwik Ship® Brands: Brochure (pdf)Kwik Ship Brands are a new way to order products. These standardized items are stocked locally, replenished weekly, and available for quick delivery, ensuring you get what you need with minimal delay.PDF9 MB
Kwik Ship® Brands: Commercial Engineering Approval FormKwik Ship® Brands: Commercial Engineering Approval FormPDF3 MB
Smith Fluid Controls Brochure (pdf)Brochure - Trap Primers, Distribution Units and other AccessoriesPDF3 MB
Smith Fluid Controls FlyerFlyer - Trap Primer, Distribution Units and other AccessoriesPDF2 MB
Engineering Newsletter: Vol. 1, Issue 1 (May 2020)Fig. No. 2692 Trap-Defender™PDF727 KB
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Fluid Controls Distribution Units Overview with Chris LevinsFluid Controls Distribution Units Overview with Chris Levins Video
Fluid Controls Trap Primers Overview with Chris LevinsFluid Controls Trap Primers Overview with Chris LevinsVideo
Fluid Controls - Trap Primers & Distribution Units with Chris LevinsFluid Controls - Trap Primers & Distribution Units with Chris LevinsVideo
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