Installation Guide

Page 1 of 2
Rev. M
Date: 2/20
Document No. WHA-1260XL
Product No. Model 1260XL
Model 1260XL
Water Hammer Arrester
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
Application
Ideal for use where Lead-Free* fittings are required. Designed
to protect residential, commercial and industrial water lines
during pressure surges following quick valve closure. This
excessive pressure surge is absorbed by the pre-charged
cushion of air permanently sealed within the water hammer
arrester. The water hammer arrester may be installed within a
stud bay without the need for an access panel.
Standards Compliance
• PDI® Certified WH-201
• ASSE® Listed 1010
• ANSI A112.26.1
• Certified to NSF/ANSI 372* by IAPMO R&T
*(0.25% MAX. WEIGHTED AVERAGE LEAD CONTENT)
Materials
Body Copper Tube (seamless, Type “L”)
Tailpiece C69300 Low Lead Brass
Piston Polycarbonate (Sizes A and B), PVC
(Sizes C-F)
O-rings EPDM
Solder Lead Free
Lubricant Dow-Corning Silicone Compound #111
Features
Sizes: A, B , C, D, E, F
Temperature range 32°F to 212°F
End connections Threaded ANSI/ASME B1.20.1
Specications
The Water Hammer Arrester shall be certified to NSF/ANSI 372, consist of a copper body with a low lead brass hexagonal
male pipe threaded inlet, an acetal, polycarbonate or low lead brass piston, EPDM o-rings and lead free solder. The device
shall be pre-charged and sealed at the factory. The Water Hammer Arrester shall be a ZURN WILKINS Model 1260XL.
MODEL
PDI
SIZE
MNPT
THREAD
DIMENSIONS
(approximate)
FIXTURE
UNIT
CAPACITY
PIPE
SIZE
in.
A B
in. mm in. mm in. mm
1260XL-A A 1/2 15 6 1/4 159 7/8 22 1 - 11 1/2
1260XL-B B 3/4 20 7 1/4 184 7/8 22 12 - 32 3/4
1260XL-C C 1 25 9 1/4 235 1 1/8 28.6 33 - 60 1
1260XL-D D 1 25 9 1/2 241 1 3/4 44 61 - 113 1 1/4
1260XL-E E 1 25 11 1/4 286 2 1/2 64 114 -154 1 1/2
1260XL-F F 1 25 12 305 2 7/8 73 155 - 330 2
Pressure
Maximum transient pressure surge, with arrester properly
sized and placed in the water supply system, will not rise
above 150 psi following quick valve closure. Maximum static
pressure: 250 psi. For best performance, static line pressure
should not exceed 80 psi; contact the factory for proper sizing
if static pressure is greater. Max spike pressure 400 psi.
Nitrogen preload 60 PSI.
A, B, C D, E, F
B
A
A
B
Dimensions & Weights (do not include pkg.)