Caleffi 573403A Dual Check Backflow Preventer with Atmospheric Vent, 1/2" NPT Female Inlet/Outlet

Dual check continuous pressure backflow preventer with atmospheric vent.

• Dual union for easy servicing and testing
• Protects potable water systems from backflow of contaminated fluids
• Connection:  1/2" NPT female, union
• Maximum Operating Pressure:  175 psi
• Medium Temperature Range:  32 – 210 °F
• Material:  DZR low lead brass

Compliance with the following codes:  IPC, IRC and UPC for use in accordance with the U.S. and Canadian plumbing codes

Compliance with the following standards:  

•  ASSE 1012-2009
•  NSF/ANSI 372 - 2016, Drinking Water System Components - Lead Content
• Reduction of Lead in Drinking Water Act, California Health and Safety Code 116875
• S.3874, Reduction of Lead in Drinking Water Act

 

Technical Brochure

Instruction Sheet