Dual Check Backflow Preventer with Atmospheric Vent – 20mm Valve for Potable Water Protection Indicator Sets Clamp ring features drainage holes

Clamp ring features drainage holes for weepage

Constructed with 304 grade stainless steel and a superior fixing bracket

Suits The Following Units ML727SS_MK11

MLS16460_BLU

Components  Indicator

Dual Check Backflow Preventer with Atmospheric Vent – 20mm Valve for Potable Water Protection Indicator Sets Clamp ring features drainage holesCompact, compliant, and built for backflow protection. The Watts 9D AUS 20mm is a dual check backflow preventer designed to safeguard potable water systems from reverse flow in low hazard applications. It features two independent check valves and an intermediate atmospheric vent that discharges to the atmosphere if a fault occurs ensuring reliable protection in compact installations. Ideal for boiler feeds, autoclaves, lab setups, and food service