Caleffi 573403A Continuous Backflow Preventer With Atmospheric Vent, 1/2 in, FNPT, 175 psi, Brass Body
Hydronic Backflow Preventers
MPN: 1057555 4315363 MFG #: 573403A
94.70000 / ea

Caleffi Backflow Preventer, Continuous, Series: 573, 1/2 in Nominal Size, FNPT, 175 psi, 32 to 210 deg F, Brass Body, 4-1/2 in W

The backflow preventer prevents contaminated water from back-shiphoning into the the potable water supply system. This may occur when the pressure in the potable water supply system changes causing water fl ow reversal. The backfl ow preventer is installed between the potable water supply system and the internal domestic water supply system, creating a safety zone which prevents the water in the two systems from coming into contact.

  • Features
  • Videos
  • Dual check continuous pressure backflow preventer with atmospheric vent
  • 250 deg F emergency backpressure temperature
  • Standard/Approvals: ASSE 1012, CSA B64.3 Certified, ICC-ES-PMG, NSF 372, Low Lead Laws and Listed by ICC-ES, IPC, IRC and UPC Listed
  • WARRANTY: Limited