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ASSE 1022 Backflow Double Check Vented | Watts SD2

Watts SD3 Double Check Vented Backflow Device ASSE 1022 BAA/ARRA Compliant

Watts SD3 Double Check Vented Backflow Device ASSE 1022
  • Watts SD3 Double Check Vented Backflow Device ASSE 1022 Features:
  • Certified to ANSI/NSF Standard 18, Manual Food and Beverage Dispensing Equipment
  • Available with or without Strainer
  • ASSE 1022 Approved Dual Check with Atmospheric Vent
  • 316 stainless steel body for corrosion resistance
  • All rubber compounds comply with FDA food additive regulations
  • Streamlined body design minimizes pressure loss and cavitation
  • Endurance tested for more than 500,000 pumping cycles
  • Atmospheric port provides visual indication of failure of the second check
  • Wye-pattern strainer model for water supply installations
  • All materials in contact with the potable water are in compliance with the requirements of the Safe Drinking Water Act, Public Law 93-523, National Interim Primary Drinking Water Regulations.
  • Strainer manufactured from NSF-approved acetal plastic
  • Click the part # in the list below for image, info and a closer look
  • Scroll down for more Info, Specs & related items.
  • 7-10 Day ETA for Out of Stock/Non-Stock Items in this Category
  • Part # SIZE
    SD3-66 3/8" Flare Dual Check Vented ASSE 1022
    No Strainer Watts 0061678
    In Stock  
    SD3-MF-4B 1/4" Flare x FPT Dual Check Vented ASSE 1022
    w/ Strainer Watts 0061653
    In Stock  
    SD3-MF-6C 3/8" Flare x FPT Dual Check Vented ASSE 1022
    w/ Strainer Watts 0061657
    In Stock  

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    Click here for Product Info and Installation Instructions

    Watts Series 3/8 SD3-MF, SD3-LS-MFxMF is a dual check with atmospheric port designed for the protection of the water supply from carbon dioxide gas and carbonated water. These substances can flow from post-mix beverage systems and are very acidic. If the acidic water comes in contact with copper tubing or copper pipe, it will cause the leaching of copper salts into the water supply. The dissolved copper if ingested can cause nausea, abdominal pain, and in some cases vomiting.

    The Watts Series 3/8 SD3-MF, SD3-LS-MFxMF prevents the reverse flow of potentially contaminated water into the potable water supply. The Watts Series 3/8 SD3-MF, SD3-LS-MFxMF atmospheric vent provides a visual indication of failure in the event that the downstream check fails and system back-pressure exceeds the supply pressure.

    Watts Series 3/8 SD3-MF, SD3-LS-MFxMF is recommended for use on Post-Mix Carbonated Beverage Equipment and equipment for tea and coffee.

    Installation Instruction Before installing, flush out pipe lines to remove scale and other foreign matter. The valve can be installed horizontally or vertically (flow up or down). Install the valve in the line with the arrow on the valve body pointing in the direction of flow. Connect a vent discharge line to the vent outlet of the Watts Series 3/8 SD3-MF, SD3-LS-MFxMF and vent to a safe place of disposal with adequate ventilation. The valve should be installed such that the strainer and the valve are accessible for service and maintenance.
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