Watts 0061888 Preventor

The Watts 0061888 is a 3/4-inch 9DM2-3/4 Backflow Preventor, functionally identical to the 9D-3/4 model, designed for high-performance protection in non-health hazard applications. As a dual check valve with atmospheric vent, this unit is engineered to prevent the reverse flow of polluted water into the potable water supply, making it a standard choice for boiler feed lines, processing tanks, and laboratory equipment. The forged brass body houses stainless steel internal parts and an integral strainer, ensuring a high degree of durability and resistance to fouling from line debris. This valve supports continuous pressure operations up to 175 psi and is rated for temperatures reaching 250°F. Its compact, line-sized construction facilitates vertical or horizontal installation, providing maximum flow with minimal pressure drop across the rubber disc seating modules. With female union inlet and outlet connections, service and maintenance for this 3/4 inch backflow preventer are significantly streamlined for field technicians.

• Enhanced Debris Management: True line-sized construction allows check modules to open fully, letting debris pass freely and reducing the risk of first check valve failure.
• Versatile Installation: Compact design supports both horizontal and vertical mounting to fit tight mechanical room configurations.
• Robust Construction: Features a forged brass body and stainless steel internals for long-term reliability in high-temperature boiler systems.
• Atmospheric Venting: Intermediate vent port protects the potable system by discharging leakage to the atmosphere if the downstream check is fouled.
• Service Convenience: Standard union connections allow for rapid removal and replacement without cutting into the existing piping.

• Is the Watts 0061888 suitable for residential drinking water? This specific model is a non-lead-free version designed for non-potable applications like boiler feeds; it does not comply with the Safe Drinking Water Act for human consumption.
• Where should the drain line be directed? To prevent water damage during venting, a 1/2-inch drain line should be installed and piped to a floor drain via a proper air gap.
• Is this model compatible with 9D-M2 specifications? Yes, the 0061888 is the specific manufacturer part number for the 3/4" 9D-M2/9D series dual check backflow preventer.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.