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Caleffi 573403A Continuous Backflow Preventer With Atmospheric Vent, 1/2 in Nominal, FNPT End Style, Brass Body, Dual Check
CALEFFI 573403A DUAL CHECK CONTINUOUS PRESSURE BACKFLOW PREVENTER WITH ATMOSPHERIC VENT FEMALE UNION CONECTIONS 1/2 NPT
Backflow Preventers
}
Brand: 
Caleffi 573403A Continuous Backflow Preventer With Atmospheric Vent, 1/2 in Nominal, FNPT End Style, Brass Body, Dual Check
3110710
Product ID:3110710
Famous Supply
- Dimensions: 4-1/2 in W
- Media: Water
- Pressure Rating: 175 psi
- Series: 573
- Temperature Rating: 32 to 210 deg f
- Type: Continuous
- Nominal Size: 1/2 in
- End Style: FNPT
- Body Material: Brass
- Backflow Type: Dual Check
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.
- Features
- Warranty
- Standards & Approvals
- Application
| Dual check continuous pressure backflow preventer with atmospheric vent |
| 250 deg F emergency backpressure temperature |
| Limited |
| ASSE 1012 |
| CSA B64.3 Certified |
| ICC-ES-PMG |
| NSF 372 |
| IPC |
| IRC/UPC Listed |
| Low Lead Laws and Listed by ICC-ES |
| For Plumbing and Hydronics |