Watts LF7RU2 3/4" x 3/4" Dual Check Valve Backflow Preventer Lead-Free (Order Code: 0072204). Product Overview: The Watts LF7R ¾ IN Dual Check Valve Backflow Preventer is engineered to safeguard potable water systems by stopping polluted or contaminated water from flowing backward into the clean supply. Crafted for use at the point of service or individual outlet, this compact, lead-free backflow preventer is ideal for residential applications that don't pose health hazards but still require reliable containment. Designed for versatility, it installs easily in vertical or horizontal positions, immediately downstream of a residential water meter. Its inline pattern and corrosion-resistant lead-free brass construction ensure long-lasting durability and high performance under continuous pressure conditions. Key Features & Benefits: Backflow Protection You Can Trust: Dual check valves ensure polluted water can’t re-enter your water system. Lead-Free Brass Construction: Safe, durable, and compliant with lead-free plumbing regulations. Compact Inline Design: Easily fits into tight residential installations without sacrificing performance. Flexible Installation: Can be installed vertically or horizontally based on site requirements. Reliable Performance: Designed for continuous pressure applications; ideal for non-health hazard residential use. Meets Industry Standards: Complies with ANSI/ASSE 1024 and is certified for safety and performance. Specifications: Model/Series: LF7R Body Material: Lead-free brass Connection Size: ¾ inch NPT female threaded (inlet/outlet) Body Pattern: Inline Backflow Preventer Type: Dual Check Pressure Rating: Minimum Working Pressure: 10 psi Maximum Working Pressure: 150 psi (10.3 bar) Temperature Range: Min: 33°F (0.5°C) Max: 180°F (82°C) Check Valves: Replaceable plastic Springs: Stainless steel Seal Material: EPDM Disc Material: Santoprene Certifications: ANSI/ASSE 1024 compliant Applications: Potable water containment in non-health hazard environments Installation Tips: Positioning: Install directly downstream of the water meter for optimal protection. Orientation: Supports both horizontal and vertical positioning for added flexibility. Accessibility: Ensure clearance for maintenance access—especially in tight spaces. Pipe Compatibility: Use thread sealant or Teflon tape to secure the NPT threaded connections and prevent leaks. Testing: Periodic inspection is recommended to maintain performance and meet local code compliance. Frequently Asked Questions (FAQs): Q: Can this valve be used in health hazard environments?A: No. It is intended for non-health hazard containment and not suitable for scenarios requiring higher levels of protection. Q: Does this model have a built-in shutoff valve?A: No, it does not include shutoff valves. External shutoff valves may be installed as needed. Q: Is the valve easy to maintain?A: Yes. The check valves are replaceable, and the brass body ensures long-term reliability. Q: What type of water systems is this designed for?A: This valve is designed for residential potable water systems operating under continuous pressure. Q: Can I install it upside down?A: It should be installed in vertical or horizontal configurations as specified in the technical documentation. Upside-down installation is not recommended.
