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ManualsBrandsZurn ManualsPlumbingReduced Pressure Principle Backflow Preventer
12
Page 1 of 2
Rev. J
Date: 8/20
Document No. BF-975XL2(LG)
Product No. Model 975XL2(LG)
Model 975XL2
Reduced Pressure Principle Assembly
Zurn Industries, LLC | Wilkins
1747 Commerce Way, Paso Robles, CA U.S.A. 93446 Ph. 855-663-9876, Fax 805-238-5766
In Canada | Zurn Industries Limited
7900 Goreway Drive, Unit 10, Brampton, Ontario L6T 5W6, 877-892-5216
www.zurn.com
Application
Ideal for use where Lead-Free* valves are required. Designed
for installation on potable water lines to protect against both
backsiphonage and backpressure of contaminated water into
the potable water supply. Assembly shall provide protection
where a potential health hazard exists.
Standards Compliance
• ASSE® Listed 1013
• IAPMO® Listed
• CSA® Certified B64.4
• AWWA Compliant C511
• Approved by the Foundation for Cross Connection
Control and Hydraulic Research at the University of
Southern California
• Meets the requirements of NSF/ANSI/CAN 61
*(0.25% MAX. WEIGHTED AVERAGE LEAD CONTENT)
• UL® Classified (less shut-off valves or with OS&Y valves)
• C-UL® Classified
Materials
Main valve body Low Lead Cast Bronze ASTM B 584
Access covers Low Lead Cast Bronze ASTM B 584
Fasteners Stainless Steel, 300 Series
Elastomers Silicone
Buna Nitrile
Polymers Noryl™
Springs Stainless Steel, 300 series
Ball valve handles Stainless Steel
Features
Sizes: 3/4", 1", 1-1/4", 1-1/2", 2"
Maximum working water pressure 175 PSI
Maximum working water temperature 180°F
Hydrostatic test pressure 350 PSI
End connections Threaded ANSI B1.20.1
Relief Valve discharge port:
3/4” - 1” - 0.63 sq. in.
1 1/4” - 2” - 1.19 sq. in.
Dimensions & Weights (do not include pkg.)
A
B
G
CD
F
E
OPTIONAL LEAD-FREE STRAINER
(MODEL SXL)
975XL2
WILKINS
ZURN
WILKINS
XL
Options
(Suffixes can be combined)
- with full port QT ball valves (standard)
S - with bronze "Y" type strainer
FT - with integral male 45° flare SAE test fitting
TCU - with test cocks up
SE - with street elbows (3/4" & 1")
U - with union ball valves
Accessories
Air gap (Model AG)
Repair kits (rubber only)
Thermal expansion tank (Mdl. XT)
Soft seated check valve (Model 40XL2)
Shock arrester (Model 1260XL)
QT-SET Quick Test Fitting Set
MODEL SIZE
DIMENSIONS (approximate)
WITH BALL
VALVES
A
B
C D E F G
in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm lbs. kg
3/4 20 12 305 7 3/4 197 2 1/8 54 3 76 3 1/2 89 5 127 16 1/8 410 12 5.5
1 25 13 330 7 3/4 197 2 1/8 54 3 76 3 1/2 89 5 127 17 3/8 441 14 6.4
1 1/4 32 17 432 10 15/16 278 2 3/4 70 3 1/2 89 5 127 6 3/4 171 22 9/16 573 28 12.7
1 1/2 40 17 3/8 441 10 15/16 278 2 3/4 70 3 1/2 89 5 127 6 3/4 171 24 1/16 611 28 12.7
2 50 18 1/2 470 10 15/16 278 2 3/4 70 3 1/2 89 5 127 6 3/4 171 26 1/2 673 34 15.4
NSF/ANSI/CAN 61

Summary of content (2 pages)