WA9DG MFG #: 0061935
  • Brand: Watts®
  • Nominal Size: 1/2 Inch x 1/2 Inch
  • Pressure Rating: 25 to 175
  • Temperature Rating: 33 to 250
This 1/2 inch dual check valve with atmospheric vent prevents the reverse flow of hot or cold polluted water from entering into the potable water supply. This valve is designed for continuous pressure non-health hazard applications in smaller supply lines, such as laboratory equipment, processing tanks, sterilizers, dairy equipment, and specifically for boiler feed lines. It consists of a brass body with stainless steel internal parts, integral strainer, two durable tight seating rubber check valves, and NPT female inlet and outlet connections.
  • 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
  • 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
  • Forged Brass Body for Durability
  • Compact Design


    True Line Sized Construction, Horizontal/Vertical Installation