APPLICATION

Designed for installation on potable water lines to protect against both backsiphonage and backpressure of contaminated water into the potable water supply. The Model 375AST NRS provides protection where a potential health hazard exists.  Ideal for use where lead-free* valves are required.  

MANUFACTURER

Zurn Wilkens

MATERIALS 

• Main Valve Body 304L Stainless steel
• Access covers 304L Stainless steel
• Coatings FDA App'd electrostatic epoxy finish
• Internals Stainless steel, 300 Series NORYL™
• Fasteners & Springs Stainless Steel, 300 Series
• Seal rings EPDM (FDA approved)
• O-rings Buna Nitrile (FDA approved)
• Sensing line Stainless Steel, braided hose

CONNECTIONS

Flange + Flange, Flanged Bolt Pattern per ASME B16.42 Class 150

STANDARDS COMPLIANCE

• ASSE® Listed 1013
• AWWA Compliant C511 (with gates only), and C550
• FM® Approved
• UL® Classified
• C-UL® Classified
• CSA® Certified B64.4
• cUPC® Listed
• Approved by the Foundation for Cross Connection Control
• and Hydraulic Research at the University of Southern California
  
• Meets the requirements of NSF/ANSI/CAN 61*
• *(0.25% MAX. WEIGHTED AVERAGE LEAD CONTENT)

MAX WORKING PRESSURE

• 175 psi

MAX WORKING WATER TEMPERATURE

• 140° F

HYDROSTATIC TEST PRESSURE 

• 350 psi