757ISR-LG
Double Check Valve Assembly, 100mm-250mm, 4-10 IN
Series 757ISR-LG Double Check Valve Assemblies are used to prevent backflow of non-health hazard pollutants that are objectionable but not toxic, from entering the potable water supply system. Series 757ISR-LG may be installed under continuous pressure service and may be subjected to backpressure and backsiphonage. This double check valve assembly consists of two independently operating tri-link check modules within a single housing, sleeve access port, four test cocks and two drip tight shut-off valves. Tri-link checks shall be removable and serviceable, without the use of special tools. Available in sizes 100mm-250mm (4-10 IN).
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