Watts LF757DCDA-OSY-CFM 10 - Part of the LF757DCDA Series HDPE ZM400S-3IP

ZM400S-3IP

This valve has a bronze body with a machine flange on the inlet side with 1/2 inch female NPT pipe threaded inlet connection and male straight-pipe threaded for locknut outlet connection

seat O-rings

ZN415E-3NL

304 SQ IN free area

Watts LF757DCDA-OSY-CFM 10 - Part of the LF757DCDA Series HDPE ZM400S-3IPThis 10 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