The Watts LF709 is a lead-free double check valve assembly designed to prevent the reverse flow of contaminated water into potable water supplies. Ideal for non-health hazard applications, it features a modular check design for easy maintenance and is constructed with a cast iron body coated with ArmorTek™ epoxy for enhanced corrosion resistance. The assembly includes top-mounted test cocks and is approved for vertical flow-up installation. With a maximum working pressure of 175 psi, it offers reliable protection against backpressure and backsiphonage.

Technical Specifications:

• Size Range: 2½" – 10"

• Materials:

  • Body: Cast Iron with ArmorTek™ Epoxy Coating

  • Check Modules: Bronze

• Pressure Rating: 175 psi (12.06 bar)

• Temperature Range: 33°F – 180°F (0.5°C – 82°C)

• End Connections: Flanged per ANSI B16.1, Class 125

• Features: Modular check design, top-mounted test cocks, vertical installation approved