Caleffi 573403A Continuous Backflow Preventer With Atmospheric Vent, 1/2 in Nominal, FNPT End Style, Brass Body, Dual Check
Caleffi Backflow Preventer, Continuous, Series: 573, 1/2 in Nominal, FNPT, 175 psi, 32 to 210 deg F, Dual Check Backflow, Media: Water, Brass Body, 4-1/2 in W

- 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|IPC|IRC/UPC Listed|Low Lead Laws and Listed by ICC-ES
- WARRANTY: Limited
Caleffi Backflow Preventer, Continuous, Series: 573, 1/2 in Nominal, FNPT, 175 psi, 32 to 210 deg F, Dual Check Backflow, Media: Water, 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 flow reversal. The backflow 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.
- Brand:Â CaleffiBackflow Type:Â Dual CheckBody Material:Â BrassDimensions:Â 4-1/2 in WEnd Style:Â FNPTMedia:Â WaterNominal Size:Â 1/2Pressure Rating:Â 175Series:Â 573Temperature Rating:Â 32 to 210Type:Â Continuous

Caleffi 573403A Continuous Backflow Preventer With Atmospheric Vent, 1/2 in Nominal, FNPT End Style, Brass Body, Dual Check
Caleffi Backflow Preventer, Continuous, Series: 573, 1/2 in Nominal, FNPT, 175 psi, 32 to 210 deg F, Dual Check Backflow, Media: Water, Brass Body, 4-1/2 in W