Zurn® 4-375ASTOSY Reduced Pressure Principle Backflow Preventer With Flanged End Outside Stem and Yoke Gate Valve, 4 in

Backflow Preventers
743204 MFG #: 4-375ASTOSY
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Zurn® 4-375ASTOSY Reduced Pressure Principle Backflow Preventer With Flanged End Outside Stem and Yoke Gate Valve, 4 in
  • Additional Information: Model 375AST
  • Body Material: Stainless Steel
  • Connection Type: Flanged x Grooved
  • Dimensions: 50 in L
  • Finish: Electrostatic Epoxy-Coated
  • Inlet to Outlet Length: 50
  • Lead-Free/Contains Lead: Lead-Free
  • Manufacturer: Zurn®
  • Media: Water
  • Nominal Size: 4
  • Port Type: Full
  • Pressure Class: 150
  • Temperature Rating: 140
  • Top to Inlet Center: 18-1/4

The 375AST reduced pressure principle backflow assembly is utilized in high hazard applications for all applications and market segments, protecting against backsiphonage and backpressure of contaminated water into the potable water supply. The 375AST offers lightweight design with a high quality, 304L grade stainless steel valve body and sensing line, plus stainless steel internals, fasteners and springs. Multiple options for end connections, such as NRS, OS and Y and butterfly shut-off valves, offer supreme installation versatility and its corrosion-resistant design saves you money on maintenance costs.

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  • Features
  • Short lay length for small space installation
  • Reliable performance and improved flow characteristics from patented compound check, allowing for installation in lower pressure systems
  • Ideal for any backflow replacement
  • Lower maintenance costs from corrosion resistance of stainless body
  • STANDARD_APPROVALS: ASSE 1013|AWWA C511/C550|CUL Listed|CSA B64.4|cUPC Certified|FM Approved|NSF/ANSI/CAN 61|UL Listed|USC Approved