Submittal Sheet

Typical Specication
Furnish and install on the plans and described herein, a code 574 series,
testable, reduced pressure zone backflow preventer as manufactured by
Caleffi in sizes ½" and ¾" with NPT female connections. Each backflow
preventer shall be designed with DZR low lead brass body and cover,
stainless steel springs and EPDM diaphragms and seals. The backflow
preventer is provided with bronze inlet and outlet t-handle operated ball
valves with 304 stainless steel ball.
Each backflow preventer assembly shall be ICC-ES certifed to ASSE
1013, CSA B64.4 and NSF 372 low lead laws. It meets codes IPC,
IRC and UPC for use in accordance with the US and Canadian
plumbing codes. It must be designed for 150 psi (10 bar) maximum
working pressure and 150°F (65°C) maximum working temperature.
(See product instructions for specific installation information.)
CALEFFI
Application
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, CSA B64.4 and NSF
372 low lead laws. It meets codes IPC, IRC and UPC for use in
accordance with the US and Canadian plumbing codes.
Submittal Data 03501 NA — Issue Date 08/2017
Dimensions
.
Job name ______________________________________
Job location ______________________________________
Engineer ______________________________________
Mechanical contractor ________________________________
Contractor’s P.O. No. ________________________________
Representative ________________________________
Size ________________________________________
Quantity ________________________________________
Approval ________________________________________
Service ________________________________________
Tag No. ________________________________________
Notes ________________________________________
Calef North America, Inc. 3883 W. Milwaukee Road / Milwaukee, WI 53208
Tel: [phone] / Fax: [phone] / www.calef.com
© Copyright 2017 Calef North America, Inc.
Testable reduced pressure zone
Backflow preventer
574 series
Technical Data
Material
Body: DZR low lead brass, EN 1982 CB752S
Cover: DZR low lead brass, EN 12165 CW724R
Check valves: PSU-POM
Springs: stainless steel
Diaphragms and seals: EPDM
Performance
Suitable fluids: water
Max. working pressure: 150 psi (10 bar)
Max. working temperature: 150°F (65°C)
Pressure test ports: upstream, intermediate, downstream
Connections: ½" NPT female
¾" NPT female
Certications
1. ICC-ES certified to ASSE 1013, CSA B64.4 and NSF 372.
2. 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
in Drinking Water Act,certified by ICC-ES, file PMG-1360.
A
D
E
B
C
CALEFFI
CALEFFI
CALEFFI
A
D
E
F B
C
Code A B C D E F
Wt
(lb)
574004A ½" fnpt 3” 6¼” 40 mm 9” --- 5.0
574050A ¾" fnpt 4" 10¼” 40-60 mm 13¼” 1¾” 5.0
574004A
574050A
0
5
10
15
20
25
0 5 10 15 20 25 30 35 40
PRESSURE LOSS (PSI)
FLOW RATE (GPM)
574004A (1/2 inch)
574050A (3/4 inch)
We reserve the right to change our products and their relevant technical data, contained in this publication, at any time and without prior notice. Contractors should request production drawings if prefabricating the system.
ASSE 1013