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  • 1/2" x 1/2", Union FPT x Union Joint, 175 PSI, Forged Brass, Rubber Disc, Dual Check, Intermediate Atmospheric Vent, Compact, In-Line Pattern, Backflow Preventer with Strainer
Watts

1/2" x 1/2", Union FPT x Union Joint, 175 PSI, Forged Brass, Rubber Disc, Dual Check, Intermediate Atmospheric Vent, Compact, In-Line Pattern, Backflow Preventer with Strainer

1146377 MFG #: 0061935
Watts Brass Backflow Preventer 1146377
  • Size: 1/2" x 1/2"
  • End Connection: Union Female Threaded x Union Joint
  • Backflow Type: Dual Check
  • Body Material: Brass
  • Specifications
  • Description
  • Documents
  • Type: Dual Check, Intermediate Atmospheric Vent, Compact, In-Line Pattern
  • Nominal Size: 1/2 Inch x 1/2 Inch
  • End Connection: Union Female Threaded x Union Joint
  • End to End Distance: 4-15/16 Inch
  • Body Material: Forged Brass
  • Disc/Poppet Material: Rubber Disc
  • Seat Material: Rubber
  • Temperature Rating: 33 to 250 Deg F
  • Pressure Rating: 175 PSI
  • Inclusions/Features: Strainer
  • Application: Laboratory Equipment, Processing Tank, Sterilizer, Dairy Equipment and Boiler Feed Line
  • Applicable Standard: ASSE 1012, NYC, BSA 104-75-SM, CSA (Canada and US) B64
  • Additional Information: Protection Type Backpressure, Backsiphonage
Series 9D is specially made for smaller supply lines and ideally suited for laboratory equipment, processing tanks, sterilizers, dairy equipment and similar applications. It is particularly recommended for boiler feed lines to prevent backflow when supply pressure falls below system pressure.