Zurn Wilkins 40XL2 In-Line Single Check Valve.

Product Overview

The Zurn Wilkins 40XL2 In-Line Single Check Valve is a dependable solution for backflow prevention in potable water systems. Engineered for both residential and commercial applications, this valve provides a positive backstop that prevents reverse water flow, safeguarding water supplies from contamination. It is especially effective in well pump systems and applications where tight seating is critical.

With its lead-free design, heavy-duty construction, and ability to withstand high pressure and temperature, the 40XL2 ensures lasting performance while meeting the latest compliance standards.

Features & Benefits

• Reliable Backflow Protection: Prevents reverse flow to maintain safe, clean water

• High-Performance Design: Handles working pressures up to 400 PSI and water temperatures up to 210°F

• Durable Build: Lead-free cast construction meets NSF/ANSI 61 & 372 standards

• Versatile Applications: Ideal for potable water systems, well pumps, and systems prone to water hammer or pressure fluctuations

• Threaded Connections: ANSI B1.20.10 threaded ends for secure installation

• Multiple Sizes: Available in ¾", 1", 1-1/4", 1-1/2", 2", 2-1/2", and 3"

Specifications

• Sizes: ¾", 1", 1-1/4", 1-1/2", 2", 2-1/2", 3"

• Maximum Working Pressure: 400 PSI

• Maximum Temperature: 210°F

• End Connections: Threaded ANSI B1.20.10

• Material: Lead-free brass construction

• Certifications: UL® Classified, NSF/ANSI 61 & 372 compliant (≤0.25% lead content)

Installation Tips

• Install in-line with the direction of flow clearly indicated on the valve body.

• Ensure system is depressurized before installation or maintenance.

• Position the valve in a location with easy access for inspection and servicing.

• For best performance, install in systems requiring tight seating to control discharge caused by pressure surges.

FAQs

Q: What does the 40XL2 protect against?
A: It prevents backflow into potable water systems, ensuring safe, clean water supplies.

Q: Can the 40XL2 handle high-pressure systems?
A: Yes, it is rated for up to 400 PSI, making it suitable for demanding applications.

Q: Is this valve lead-free?
A: Yes, it meets NSF/ANSI 61 and 372 standards with less than 0.25% lead content.

Q: Where is this valve commonly installed?
A: It’s ideal for domestic water systems, well pump applications, and commercial potable water lines.