Description

Caleffi 573503A 3/4″ NPT female Inlet/Outlet Dual Check Backflow Preventer

Caleffi 573503A 3/4″ NPT Female Inlet/Outlet Dual Check Backflow Preventer

Dual check continuous pressure backflow preventer with atmospheric vent.

• DZR low-lead brass body.

• Max working pressure:  175 psi

• Working temp range:  32˚ – 210˚F

• Emergency backpressure temp: 250˚F 

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