Specification
a company
®
®
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
3544 Nashua Drive, Mississauga, Ontario L4V 1L2 Ph. 905-405-8272, Fax 905-405-1292
www.zurn.com
Rev. C
Date: 12/13
Document No. BF-350SM
Patent No. 7,434,593, 7,784,483, & 7,905,250
Product No. Model 350SM
Model 350
Double Check Valve Assembly
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Dimensions & Weights (do not include pkg.)
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Application
Designed for installation on water lines to protect against both
backsiphonage and backpressure of polluted water into the water
supply. Assembly shall provide protection where a potential health
Standards Compliance
(Horizontal & Vertical)
• ASSE® Listed 1015
• IAPMO® Listed
• CSA® Certified B64.5
• AWWA Compliant C510
• Approved by the Foundation for Cross Connection
Control and Hydraulic Research at the University of
Southern California
• UL® Classified (less shut-off valves only)
• C-UL® Classified (less shut-off valves only
Materials
Main valve body Cast Bronze, ASTM B 584 (3/4-1")
Housing Reinforced Nylon
Fasteners Stainless Steel, 300 Series
Elastomers Silicone (FDA Approved)
Buna Nitrile (FDA Approved)
Internals Delrin, NSF Listed
Springs Stainless Steel, 300 series
Ball Valves Cast Bronze, ASTM B 584
Struts Forged Brass ASTM B 124
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
Options
(Suffixes can be combined)
c
- with full port QT ball valves (standard)
c
L - less ball valves, male pipe thread
c
S - with Model SXL lead-free bronze "Y" type strainer
c
SH - with stainless steel handles
c FT - with integral male 45° flare SAE test fitting
c BOF - with blow out / flush fitting
Accessories
c Repair kit
c Thermal expansion tank (Model XT)
c QT-SET Quick Test Fitting Set
c Winterizing Blow out/Flush fitting (RK34-350BOF,
RK1-350BOF or RK114-350-375BOF)
G
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D
350 DC
175 PSIG 180 F
2
WILKINS
XL
OPTIONAL LEAD-FREE STRAINER
(MODEL SXL)
(1-1/4" - 2")