Wilkins 475DAV Reduced Pressure Detector Assembly Backflow Preventer

The Reduced Pressure Detector Assembly shall be certified to NSF/ANSI/CAN 61, ASSE® Listed 1047, and supplied with full port OS & Y gate valves. The main body and access covers shall be epoxy coated ductile iron (ASTM A 536 Grade 4), the seat ring and check valve shall be NORYL™, the stem shall be stainless steel (ASTM A 276) and the seat disc elastomers shall be EPDM. The first and second checks shall be accessible for maintenance without removing the relief valve or the entire device from the line. If installed indoors, the installation shall be supplied with an air gap adapter. The Reduced Pressure De¬tector Assembly shall be a ZURN WILKINS Model 475DA or 475DAV.

Compliance:

ASSE® Listed 1047 (4” thru 8”), AWWA Compliant C550, UL® Classified (4” thru 10”), C-UL® Classified (4” thru 10”), FM® Approved (4” thru 8”), USC Approved (4" thru 8"), NSF/ANSI/CAN 61

Features:

• Sizes: 4", 6", 8", 10"
  Maximum working water pressure 175 PSI
• Maximum working water temperature 140°F
• Hydrostatic test pressure 350 PSI End connections
• (Grooved for steel pipe) AWWA C606
• (Flanged) ANSI B16.42 Class 150
• Relief Valve discharge port: 2 1/2” - 6” -2.75 sq. in. 8” - 10” - 3.69 sq. in

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