Specification

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Model 375XLB
Theft Prevention Reduced Pressure Principle Assembly
Rev. K
Date: 12/19
Document No. BF-375XLB
Patent No. 6,513,543, 7,784,483 & 7,905,250
Product No. Model 375XLB
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)
 FT - with integral male 45° flare SAE test fitting
 AG - with air gap
 BOF - with Blow out/Flush fitting
Accessories
 Repair kits
 Thermal expansion tank (Mdl. XT)
 Soft seated check valve (Mdl. 40XL2)
 Shock arrester (Model 1250XL)
 QT-SET Quick Test Fitting Set
 Blow out / Flush fitting
(RK34-375BOF, RK1-375BOF or RK114-350-375BOF)
180˚F
C
D
E
A
A
B
G
D
E
C
G
(1/2” - 1” )
( 1-1/4” - 2” )
C
2
RP
375
MODEL
175PSIG
1.2MPa
180˚F
82˚C
B64.4
1013
RP
375
MODEL
175PSIG
1.2MPa
82˚C
B64.4
1013
Dimensions & Weights (do not include pkg.)
Application
To help deter theft a durable black UV stabilized fusion epoxy
coating is applied to the exterior bronze surfaces of the as-
sembly. Ideal for use where Lead-Free* valves are required.
Designed for installation on potable water lines to protect
against both backsiphonage and backpressure of contami-
nated 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
• NSF® Listed-Standard 61, Annex G*
• UL® Classified (less shut-off valves only, 3/4" - 2")
• C-UL® Classified (less shut-off valves only, 3/4" - 2")
• Approved by the Foundation for Cross Connection Control
and Hydraulic Research at the University of Southern Cali
fornia
• Meets the requirements of NSF/ANSI 61*
*(0.25% MAX. WEIGHTED AVERAGE LEAD CONTENT)
Materials
Housing Reinforced Nylon, FDA approved
Fasteners Stainless Steel, 300 Series
Elastomers Silicone (FDA Approved)
Buna Nitrile (FDA Approved)
Internals Delrin, Nylon
Springs Stainless Steel, 300 series
Ball Valves Low Lead Cast Bronze, ASTM B 584
Struts Stainless Steel, 300 Series
Coating FDA Approved Fusion Epoxy
Features
Sizes: 1/2", 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 FNPT ANSI B1.20.1
NSF/ANSI 61
MODEL
375XLB
SIZE
DIMENSIONS (approximate) WEIGHT
A B C D E G
WITH BALL
VALVES
in. mm in. mm in. mm in. mm in. mm in. mm in. mm lbs. kg
1/2 20 8 7/8 225 1 15/16 49 1 5/8 41 2 15/16 75 3 7/8 98 3 76 5.7 2.6
3/4 20 8 7/8 225 1 15/16 49 1 5/8 41 2 15/16 75 3 7/8 98 3 76 5.7 2.6
1 25 11 3/16 284 2 1/4 57 2 1/4 57 3 7/16 87 4 102 4 102 9.7 4.4
1-1/4 32 14 7/8 378 3 3/8 86 3 3/8 86 3 3/4 95 5 3/4 146 3 3/4 95 20.5 9.3
1-1/2 40 15 1/4 387 3 3/8 86 3 3/8 86 3 3/4 95 5 3/4 146 4 1/2 114 21.5 9.8
2 50 16 406 3 3/8 86 3 3/8 86 3 3/4 95 5 3/4 146 4 3/4 120.7 23.5 10.7