CALEFFI 574 Series Manual

574 series testable, reduced pressure zone backflow preventer
© Copyright 2018 Caleffi
ASSE 1013
Technical specifications
Materials
Body:
Cover:
Check valves:
Springs:
Diaphragms and seals:
Isolation ball valves, inlet and outlet
Body material:
Ball:
Handle and nut:
Seat ring and packing gland:
Gland nut:
Stem:
Performance
Suitable Fluids:
Max. working pressure:
Max. working temperature:
Pressure test ports:
Connections:
Certifications
1. ASSE 1013/CSA B64.4, certified by ICC-ES, file PMG-1433.
2. Complies with NSF/ANSI 372, 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, as certified by ICC-ES, file PMG-1360.
Function
The backflow preventer can be used in all systems where there is
danger of the potable water supply system being contaminated. It
prevents an accidental reduction in the pressure in the distribution
system from causing backflow from contaminated water in
user installations. The valve is ICC-ES certified to ASSE 1013 and
CSA B64.4. It complies with codes IPC, IRC, NPC and UPC for
use in accordance with the US and Canadian plumbing codes,
and standard NSF/ANSI 372, low lead.
Product range
574 series Testable reduced pressure zone backflow preventer
code 574004A...................................................size ½" NPT female
code 574064A............................................................size ½" press
code 574050A...................................................size ¾" NPT female
code 574056A............................................................size ¾" press
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574 Series
DZR low-lead brass, EN 1982 CB752S
DZR low-lead brass, EN 12165 CW724R
peroxide-cured EPDM
upstream, intermediate, downstream
½" NPT female & press
¾" NPT female & press
H0003953.01
PSU-POM
stainless steel
C89833 bronze
304 stainless steel
steel
PTFE
brass
low lead brass
water
150 psi (10 bar)
150°F (65°C)