Wilkins 450STDA Double Check Detector Assembly, 4" to 10", Lead-Free*

The Double Check Detector Backflow Prevention Assembly shall be certified to NSF/ANSI 61, ASSE® Listed 1048, and sup- plied with full port gate valves. The main body and access cover shall be 304L Stainless Steel, the seat ring and check valve shall be Noryl™ (NSF Listed), the stem shall be stainless steel (ASTM A 276) and the seat disc elastomers shall be EPDM. The first and second check valves shall be accessible for maintenance without removing the device from the line. The Double Check Detector Backflow Prevention Assembly shall be a WILKINS Model 450STDA

Compliance:

• NSF Standard 61
• NSFStandard372
• ASSE 1048
• CSA B64.5
• NPCC
• FM Approved

Features:

• Superior stainless steel body resists corrosion and extends the life of the product
• 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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