Specification

Rev. C
Date: 01/20
Document No. BF-975XLTCU
Product No. Model 975XLTCU
Model 975XLTCU
Reduced Pressure Principle Assembly
with Test Cocks Up
Page 1 of 2
Zurn Industries, LLC | Wilkins
1747 Commerce Way, Paso Robles, CA U.S.A. 93446 Ph. 855-663-9876, Fax [phone]
In Canada | Zurn Industries Limited
7900 Goreway Drive, Unit 10, Brampton, Ontario L6T 5W6, 877-892-5216
www.zurn.com
Options
(Suffixes can be combined)
 - with full port QT ball valves (standard)
 L - less ball valves
 U - with union ball valves
 MS - with integral relief valve monitor switch
 S - with bronze "Y" type strainer
 BMS - with battery operated monitor switch
 FT - with integral male 45° flare SAE test fitting
Accessories
 Air gap (Model AG)
 Repair kits (rubber only)
 Thermal expansion tank (Mdl. XT)
 Soft seated check valve (Model 40XL2)
 Shock arrester (Model 1250XL)
 QT-SET Quick Test Fitting Set
Application
Designed for installation on 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.
Test cocks facing upward allows installation close to wall.
Standards Compliance
(Unless otherwise noted, applies to model 975XL)
• ASSE® Listed 1013
• IAPMO® Listed
• UL® Classified (less shut-off valves or with OS&Y valves)
• C-UL® Classified (less shut-off valves or with OS&Y valves)
• CSA® Certified
• AWWA compliant C511
• Approved by the Foundation for Cross Connection
Control and Hydraulic Research at the University of
Southern California
Materials
Main valve body Cast Bronze ASTM B 584
Access covers Cast Bronze ASTM B 584
Fasteners Stainless Steel, 300 Series
Elastomers Silicone (FDA approved)
Buna Nitrile (FDA approved)
Polymers Noryl™, NSF Listed
Springs Stainless Steel, 300 series
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.)
C
F
E
A
B
G
D
975XL
WILKINS
ZURN
WILKINS
ASSE 1013
VENT
MODEL
SIZE
DIMENSIONS (approximate) WEIGHT
A
A UNION
BALL VALVES
B LESS BALL
VALVES
C D E F G
LESS
BALL
VALVES
WITH
BALL
VALVES
in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm in. mm lbs kg lbs. kg
3/4 20 12 305 14 356 7 3/4 197 2 1/8 54 3 76 3 1/2 89 5 127 15 3/4 400 10 4.5 12 5.5
1 25 13 330 14 1/4 362 7 3/4 197 2 1/8 54 3 76 3 1/2 89 5 127 17 3/4 451 10 4.5 14 6.4
1 1/4 32 17 432 19 483 10 15/16 278 2 3/4 70 3 1/2 89 5 127 6 3/4 171 22 559 22 10 28 12.7
1 1/2 40 17 3/8 441 20 508 10 15/16 278 2 3/4 70 3 1/2 89 5 127 6 3/4 171 23 1/8 587 22 10 28 12.7
2 50 18 1/2 470 21 1/4 540 10 15/16 278 2 3/4 70 3 1/2 89 5 127 6 3/4 171 25 1/2 648 22 10 34 15.4