CALEFFI 573 Series Installation, Commissioning And Servicing Instructions

CALEFFI
www.caleffi.com
Backflow preventer with intermediate atmospheric vent
© Copyright 2018 Caleffi
Installation, commissioning and servicing instructions
C US
ASSE 1012
Technical characteristics
Connections:
Materials: Body:
Filter:
Check valve:
Check valve stem:
Diaphragm:
Seals:
Maximum working pressure:
Maximum working temperature:
Emergency back pressure temperature:
Medium:
Certified to:
Code 116875 S.3874, Reduction in Drinking Water Act, certified by ICC-ES, file PMG-1360.
Function
The backflow preventer with atmospheric vent is designed to protect
drinking water systems from the return, caused by backsiphonage or
backpressure, of contaminated fluids.
The Caleffi 573 series Is certified by ICC-ES to be in compliance with
the International Plumbing Code (IPC), International Residential Code
(IRC), Uniform Plumbing Code (UPC), and standards ASSE 1012-
2009, and CSA B64.3-94. Additionally, it is also certified by ICC-ES
to be in compliance with standard NSF/ANSI 372-2011, 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.
Product range
573 series backflow preventer with atmospheric vent
size 1/2"- 3/4" NPT female threaded connection with union
size 1/2" sweat connection with union
size 1/2" press connection with union
NSF/ANSI 372-2011, Drinking Water System Components-Lead Content
Reduction of Lead in Drinking Water Act, California Health and Safety
1
1/2"- 3/4" NPT female with union
1/2" SWT with union
1/2" press with union
peroxide-cured EPDM
peroxide-cured EPDM
CSA B64.3-94 and ASSE 1012-2009
38517.06
573 Series
low lead brass
stainless steel
PSU
brass
175 psi (12 bar)
210°F (99°C)
250°F (121°C)
water