Specification

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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
3544 Nashua Drive, Mississauga, Ontario L4V 1L2  Ph. 905-405-8272, Fax [phone]
www.zurn.com
Page 2 of 2
DIRECTION OF FLOW
12" MIN.
30" MAX.
OPTIONAL PRESSURE
GAUGE
MODEL 975XL2
BACKFLOW PREVENTER
PROTECTIVE
ENCLOSURE
WILKINS
600XL
WILKINS
ZURN
975XL2
ASSE 1013
Speci cations
The Pressure Reducing Valve shall be certified to NSF/ANSI 372, consist of a low lead bronze body and bronze bell housing,
shall have separate access covers for the plunger and strainer screen and shall have a bolt to adjust the downstream pres-
sure. The Pressure Reducing Valve shall be of the balanced piston design and shall reduce pressure in both flow and no-flow
conditions. The bronze bell housing and access caps shall be threaded to the body and shall not require the use of ferrous
screws. The Pressure Reducing Valve shall be a ZURN WILKINS Model 600XL.
Typical Installation
Local codes shall govern installation requirements. Unless otherwise specified, the assembly shall be mounted in accor-
dance with the latest edition of the Uniform Plumbing Code. The Model 600XL may be installed in any position. If installed in
a pit, vault or inside application, specify the “SC” sealed cage option. Multiple installations are recommend for wide demand
variations or where the desired pressure reduction is more than 4 to 1 (i.e.: 200 psi inlet reduced to 50 psi outlet). CAUTION:
Anytime a reducing valve is adjusted, a pressure gauge must be used downstream to verify correct pressure setting. Do not
bottom adjustment bolt on bell housing.
OUTDOOR INSTALLATION VERTICAL INSTALLATION
DIRECTION OF FLOW
MODEL 850XL
SHUT-OFF
600XL
WILKINS
OPTIONAL
PRESSURE GAUGE
FLOW RATES (GPM)
FALL OFF (PSIG)
0
5
10
15
0 40 80
120
69
104
2.5 5.0
7.6
FALL OFF (kpa)
FLOW RATES (l/s)
MODEL 600XL 1/2" THRU 2" (STANDARD & METRIC)
3/4"
(20mm)
35
20
138
1/2"
(15mm)
1"
(25mm)
1 1/4"
(32mm)
1 1/2"
(40mm)
2"
(50mm)
20
60
100
1.3
3.8
6.3
"Flow curves are based on a
50 psi pressure differential"