1260XL - Water Hammer Arrestor

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.

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

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)

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.

Specifications
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.