Specification

Page 2 of 2

Rated Flow (established by approval agencies)
Flow Characteristics
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
0
20 60
80
0
5
10
15
0
50
100 150
200
250
5
10
15
40
0
Rated Flow (Established by approval agencies)
FLOW RATES (GPM)
PRESSURE LOSS (PSIG)
69
PRESSURE LOSS (kpa)
FLOW RATES (l/s)
MODEL 950XLT2 3/4", 1", 1 1/4", 1 1/2" & 2" (STANDARD & METRIC)
35
3/4" (20mm)
1" (25mm)
1 1/4" (32mm)
1 1/2" (40mm)
2" (50mm)
103
15.8
12.6
9.56.3
3.25.0
3.82.52
1.26
Typical Installation
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. Un-
less 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. If installed below grade, be certain
adequate drainage is provided to prevent the device from
being submerged.
PIT INSTALLATION
Specications
The Double Check Type Backflow Preventer shall be certified to NSF/ANSI/CAN 61, shall be ASSE Listed 1015, rated to
180°F, and supplied with full port ball valves. The main body and access covers shall be low lead bronze (ASTM B 584), the
seat ring and all internal polymers shall be Noryl™ and the seat disc elastomers shall be SILICONE. The first and second
check shall be located at a 45° angle and accessible for maintenance from the top of the device, without removing the device
from the line. Each check shall have separate access covers and test cocks shall be accessible from the top of the device.
Test cocks shall be protected from debris by a plug. The Double Check Type Backflow Preventer shall be a ZURN WILKINS
Model 950XLT2.
OUTDOOR INSTALLATION
PROTECTIVE
ENCLOSURE
DIRECTION OF FLOW
12" MIN.
30" MAX.
OPTIONAL LEAD-FREE STRAINER
(MODEL SXL)
950XLT2
WILKINS
175 PSI
180˚F
DC
WILKINS
XL
DIRECTION OF FLOW
DC
950XLT2
WILKINS
175 PSI
180˚F
Capacity thru Schedule 40 Pipe
Pipe size 5 ft/sec 7.5 ft/sec 10 ft/sec 15 ft/sec
1/8" 1 1 2 3
1/4" 2 2 3 5
3/8" 3 4 6 9
1/2 5 7 9 14
3/4" 8 12 17 25
1" 13 20 27 40
1 1/4" 23 35 47 70
1 1/2" 32 48 63 95
2" 52 78 105 167
(PROVIDED BY OTHERS)