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NSF/ANSI 61
Drinking Water System Components - Health Effects

NOTE: Unless otherwise indicated for Materials, Certification is only for the Water Contact Material shown in the Listing. Click here for a list of Abbreviations used in these Listings.


 
Watts Regulator Company 
815 Chestnut Street
North Andover, MA 01845 
United States 
978-689-6249

Facility : Woodland, CA

Mechanical Devices

    Water Water
    Contact Contact
Trade Designation Size Temp Material

Backflow Preventers [G]
(1)-DBF-(2)-(3)(4)(5)-(6)(7)[1] 2" - 48" CLD 23 MLTPL
757-X-YY-ZZ-TT[2] 2 1/2" - 10" CLD 23 MLTPL
767-X-YY-ZZ-TT[2] 2 1/2" - 10" CLD 23 MLTPL
957-X-YY-ZZ-TT[2] 2 1/2" - 10" CLD 23 MLTPL
967-X-YY-ZZ-TT[2] 2 1/2" - 10" CLD 23 MLTPL

[1] (1) Size: 02-48
    (2) Body style
        03 - Lug
        04 - Wafer
    (3) Body material
        1 - Cast iron
        2 - Ductile iron
    (4) Disc material
        2 - Aluminum bronze
        3 - SS 316
    (5) Shaft material
        1 - Stainless steel 416
        2 - Stainless steel 316
        3 - Stainless steel 431
    (6) Seat material
        1 - EPDM (Canada)
        4 - EPDM (US)
    (7) Operator
        0 - No handle
        5 - Standard handle (10-position)
        G - Gear operator 
        P - Positioning/locking kit with handle
[2] X - Valve pattern            
        Blank - Straight                        
        N - N pattern                           
        Z - Z pattern
    YY - Backflow shutoff designation where 2 per units may be mixed like NRS x PIV  
         BFG  - Butterfly valve
         DNRS - Domestic non-rising stem gate 
         DOSY - Domestic outside stem and yoke gate  
         DPIV - Domestic post indicator gate                    
         NRS  - Non-rising stem gate
         OSY  - Outside stem and yoke gate                      
         PIV  - Post indicator gate
         QT   - Quarter turn ball valve
    ZZ - Inlet and outlet connections                   
         Blank - Flange by flange 
         FxG   - Flange by groove
         GxF   - Groove by flange
         GxG   - Groove by groove
    TT - Strainer options
         Blank - No strainer
         S - 77F-DI-FDA-125 strainer
[G] Product is Certified to NSF/ANSI 372 and conforms with the lead content requirements for
    “lead free” plumbing as defined by California, Vermont, Maryland, and Louisiana state
    laws and the U.S. Safe Drinking Water Act.

    


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