WATTS® 0061935 9D Backflow Preventer, 1/2 in Nominal, Union FNPT x Union Joint End Style, Forged Brass Body, Dual Check, Domestic

WA9DG MFG #: 0061935
  • Backflow Type: Dual Check
  • Country of Origin: US
  • Dimensions: 4-15/16 in W x 2-9/16 in H
  • Domestic/Import: Domestic
  • End Style: Union FNPT x Union Joint
  • Manufacturer Name: Watts Water Technologies
  • Media: Water
  • Nominal Size: 1/2 in
  • Series: 9D, 9D M3, 9D Series
  • Features and More


  • True line-sized construction allows the check modules to open further allowing dirt and debris to pass more freely reducing check fouling
  • Stainless steel internal parts
  • Maximum flow at low pressure drop
  • Furnished with union connections to facilitate removal and replacement for maintenance
  • Compact for economy combined with performance
  • Design simplicity for easy maintenance
  • Can be installed vertically or horizontally
  • Durable, tight seating rubber check valve assemblies


  • For non-health hazard applications in smaller supply lines
  • such as laboratory equipment
  • processing tanks
  • sterilizers
  • dairy equipment
  • and specifically for boiler feed lines


  • ASSE 1012
  • CSA B64
  • PROP65: This product can expose you to chemicals including lead which is known to the State of California to cause cancer and birth defects or other reproductive harm.


  • Limited