Series LF007 Double Check Valve assemblies are installed at referenced cross-connections to prevent the backflow of polluted water into the potable water supply. Only those cross connections identified by local inspection authorities as nonhealth hazard are allowed the use of an approved double check valve assembly. The series features Lead Free* construction to comply with Lead Free* installation requirements. Check with local authority having jurisdiction regarding vertical orientation, frequency of testing, or other installation requirements
A Double Check Valve assembly shall be installed at each noted location. The assembly shall consist of two positive seating check modules with captured springs and rubber seat discs. The check module seats and seat discs shall be replaceable. Service of all internal components shall be through a single access cover secured with stainless steel bolts. The Double Check Valve assemblies shall be constructed using Lead Free* cast copper silicon alloy. Lead Free* Double Check Valve assemblies shall comply with state codes and standards, where applicable, requiring reduced lead content. The assembly shall also include two resilient seated isolation valves; four top mounted, resilient seated test cocks. The assembly shall meet the requirements of ASSE Standard 1015 and AWWA Standard C510. Approved by the Foundation for Cross-Connection Control and Hydraulic Research at the University of Southern California. Assembly shall be a Watts Series LF007, and shall include a freeze sensor mounted to one of the test cocks.
Features
• Modular, compact design concept to facilitate maintenance and assembly by retaining the spring load
• Lead Free* cast copper silicon alloy body construction
• Top-mounted Lead Free* ball valve test cocks
• Replaceable seats and seat discs
• Easier maintenance through a single, top-entry cover
• No special tools required for servicing
• Tee handles, sizes ½" to 1"; lever handles, sizes 1¼" to 2"
• Low pressure drop
Replaced by
LF007M3-QT-FZ 3/4
T063231
Modular, compact design concept to facilitate maintenance and assembly by retaining the spring load
• Lead Free* cast copper silicon alloy body construction
• Top-mounted Lead Free* ball valve test cocks
• Replaceable seats and seat discs
• Easier maintenance through a single, top-entry cover
• No special tools required for servicing
• Tee handles, sizes ½" to 1"; lever handles, sizes 1¼" to 2"
• Low pressure drop
