Watts LF757DCDA-DOSY-CFM 4 - Part of the LF757DCDA Series SITEDRAIN This pressure relief valve has

This pressure relief valve has a 2 inch NPTF female inlet and outlet and a 90 psi pressure relief setpoint

This model is ideal for concrete floor installations where dependable access for inspection and maintenance is essential

sewer and drain fittings

UPC - 098268637175

Z645-3NH-AR

Watts LF757DCDA-DOSY-CFM 4 - Part of the LF757DCDA Series SITEDRAIN This pressure relief valve hasThis 4 IN lead free double check detector backflow preventer assembly prevents the backflow of pollutants that are objectionable but not toxic, from entering into the potable water supply. It is designed for non health hazard applications and may be installed under continuous pressure service to protect against both backpressure and backsiphonage. It is used primarily on fire sprinkler lines when it is necessary to monitor unauthorized use of water