The Wilkins 1260XL-B is a lead-free water hammer arrester designed to protect residential, commercial, and industrial plumbing systems from pressure surges caused by quick valve closure.

Key Specifications:

• Size: 3/4 Inches MNPT
• Maximum Static Pressure: 250 PSI
• Temperature Range: 32°F to 212°F
• Notable Certifications: PDI WH-201, ASSE 1010, UPC Listed
• Connection Type: Threaded ANSI/ASME B1.20.1

Other Related Variants:

• 1260XL-A: 1/2 Inch MNPT, 1-11 fixture units
• 1260XL-C: 1 Inch MNPT, 33-60 fixture units

Materials:

• Body: Seamless Type L Copper Tube
• Tailpiece: C69300 Low Lead Brass
• Piston: Polycarbonate
• O-rings: EPDM
• Solder: Lead Free
• Lubricant: Dow-Corning Silicone Compound #111

Typical Installation:

The Zurn 1260XL-B is ideal for multi-fixture branch lines up to 20 feet, where it should be placed at the end of the branch line between the last two fixtures served. For branch lines exceeding 20 feet, an additional water hammer arrester should be placed accordingly. The unit is suitable for long runs of piping to remote equipment, where it should be located as close as possible to the point of quick closure. The Zurn 1260XL-B may be installed within a stud bay without the need for an access panel, making it perfect for fixture unit loads from 12 to 32.

Standards Compliance:

PDI Certified WH-201; ASSE Listed 1010; ANSI A112.26.1; UPC Listed; NSF/ANSI/CAN 372

Features & Benefits:

• Pressure Surge Protection: Absorbs excessive pressure surges up to 400 PSI with a pre-charged nitrogen cushion, preventing water hammer damage in plumbing systems.
• Lead-Free Compliance: Meets NSF/ANSI/CAN 372 requirements with low-lead brass construction, ideal for residential and commercial applications requiring lead-free fittings.
• Maintenance-Free Design: Factory-sealed construction with pre-charged nitrogen eliminates the need for routine maintenance or access panels.
• Versatile Installation: Can be installed within stud bays and suitable for branch lines serving 12 to 32 fixture units with 3/4 inch pipe size.

FAQ

Q: What fixture unit capacity does the Wilkins 1260XL-B support?

A: The 1260XL-B is designed for fixture unit loads ranging from 12 to 32, making it suitable for 3/4 inch pipe installations in residential and commercial applications.

Q: Can this water hammer arrester be installed inside a wall?

A: Yes, the 1260XL-B may be installed within a stud bay without requiring an access panel due to its maintenance-free, factory-sealed design.

Q: What is the maximum operating pressure for this unit?

A: The maximum static pressure rating is 250 PSI, with maximum transient pressure surge protection up to 400 PSI when properly sized and placed in the water supply system.

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