Wilkins 450ST Double Check Valve Assembly, 4" to 10", Lead-Free*

Designed for drop in replacement of competitor valves and new installation on potable water lines to protect against both backsiphonage and backpressure of polluted water into the potable water supply. The Model 450ST shall provide protection where a potential health hazard does not exist. Ideal for use where lead-free* valves are required.

Compliance

(Vertical Up - Vertical Down Orientation only) Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California

• ASSE® Listed 1015

• AWWA Compliant C510 (with gates only), and C550

• UL® Classified

• C-UL® Classified

• FM® Approved

• CSA® Certified B64.5

• Meets the requirements of NSF/ANSI/CAN 61*

*(0.25% MAX. WEIGHTED AVERAGE LEAD CONTENT)

Features:

• Small, compact footprint allows for direct drop-in replacement
• Time-tested check and relief valve components ensure easy maintenance and more water system uptime
• Patented compound checks provide ultra-low pressure drop as documented by approval authorities, reducing the need for a booster pump
• Patented AR spool for drop-in replacements, matching lay-lengths of common n-pattern valves
• AR spool maintains agency approvals when installed by the factory
• Backflow setter eliminates the need for concrete thrust blocks, allowing for easier installation and lower cost
• Available in sizes 4 in. through 10 in.

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