Specifications

24
Tech Support: 855-ONE-ZURN
www.zurn.com
Double Check Valve Assembly 950XL Series
• 3/4”, 1”, 1
1
/
4
”, 1
1
/
2
”, 2”
• Double check valve assembly consisting of two independently operated
spring-loaded center guided check valves, wye pattern body
• Complete with two full port resilient seated ball valves for shut-off and
four resilient seated ball valve test cocks
• Bronze body construction
• Noryl
®
replaceable seats and silicone rubber check discs
• Entire unit serviceable in line
• Temperature range 33°F – 180°F
• Maximum pressure 175 psi
• With BSP threaded connections
• Available with stainless steel handles (optional)
• ASSE
®
Listed 1015, IAPMO
®
Listed, C-UL
®
Classified (Model 950LXL),
UL
®
Classified (Model 950LXL), CSA
®
Certified, AWWA
• Approved by the Foundation for Cross-Connection Control and Hy-
draulic Research at the University of Southern California
Model 950XL FNPT x FNPT end connections
Model 950LXL Less shut-off valves – male pipe thread
Model 950XLS Supplied with wye strainer
Model 950XLTCU With test cocks up
Model 950XLU Supplied with union connections between ball
valves and the device
Model 950XLUS Same as 950XLU except supplied with wye strainer
Model 950XLOSY With OS&Y gate valves. UL
®
Classified only
Model 950XLFDC Same as 2” size 950XL except supplied with
2
1
/
2
” female swivel inlet hose connection and
2
1
/
2
” male outlet hose connection, for temporary
water service from fire hydrant
Model 950XLFT Supplied with fast-test test cocks
Model 950XLSH Supplied with stainless steel handles
For Additional Information, reference WK-BPC catalog or visit
our web site.
OptionsAccessoriesTypical InstallationX Ref Features Applications
With its time tested design, the Wilkins 950XL is capable of handling the toughest backflow conditions
that any double check valve assembly may incur. The 950XL, with its “wye” pattern configuration,
offers individual access covers to each check valve, replaceable check seats, and silicone seal rings,
all wrapped in a bronze body for use in non-health hazard applications. Since the 950XL carries the
Wilkins name, you can rest assured that the 950XL will provide “Performance Under Pressure”.
 Thermal expansion tank (Model XT)
 Quick test set (QT-SET)
Local codes shall govern installation requirements. To be installed in accordance with the manufacturer’s instructions and the latest edition of the
Uniform Plumbing Code. Unless otherwise specified, the assembly shall be mounted at a minimum of 12” (305mm) and a maximum of 30” (762mm)
above adequate drains with sufficient side clearance for testing and maintenance. The installation shall be made so that no part of the unit can be
submerged.
 Test cock lock (Model TCL24)
 Ball valve monitor switch (Model BVMS)
Model 950XL
Model 950XLOSY
DIRECTION OF FLOW
PROTECTIVE
MODEL 950XLS
MODEL 950XL
ENCLOSURE
12" MIN.
30" MAX.
DIRECTION OF FLOW
12" MIN
30" MAX
NOITALLATSNI ROODNINOITALLATSNI ROODTUO
MODEL S
STRAINER
WILKINS WATTS CONBRACO FEBCO AMES HERSEY
950XL, 007QT, 775, 719 40-100-T2 805Y, 850 200B, 2000B, HDC, FDC
950LXL 007LF 40-100-T1
950XLS 007QTS
950LXTCU
950XLU U007QT 40-100-T4
950XLUS U007QTS
Backflow Preventers