Zurn 4-375OSY 4" Ductile Iron Flanged 350 psi Backflow PreventerZurn 4-375OSY 4 in. Ductile Iron Flanged 350 psi Backflow Preventer delivers exceptional reliability and performance, making it an ideal choice for both residential and commercial backflow applications. This FM® Approved and UL® Classified unit features a short lay-length, facilitating installation in tight spaces, while its versatile flanged end connections ensure compatibility with various plumbing systems. Constructed from durable ductile iron, the backflow preventer is designed to withstand pressures up to 350 psi, ensuring robust operation in demanding environments. The innovative Zurn Wilkins low head loss Compound Check provides superior performance, minimizing pressure drop and maintaining efficient water flow. Additionally, the absence of threads or taps in the body and cover eliminates exposure to corrosion, enhancing the longevity of the unit. The 4-375OSY model is equipped with a single access cover that reduces downtime during maintenance, allowing for quick inspections and repairs. Ideal for replacement projects, this backflow preventer complies with important standards such as ANSI B16.42, ASSE 1013, and AWWA C-511, ensuring its reliability and safety in various applications. With a recommended valve application for water and a temperature range of 33°F to 140°F, it caters to diverse operational needs. Measuring 32-1/2 inches in height, 40-4/5 inches in length, and 21-1/2 inches in width, and weighing 328 lbs, this inline valve is robust yet manageable for installations. Trust Zurn's commitment to quality and performance with the 4-375OSY Backflow Preventer, where innovative design meets proven durability for your plumbing needs.
4 in. Ductile Iron Flanged 350 psi Backflow Preventer
FM® Approved
UL® Classified
Short lay-length for small space installation
NRS, OS&Y, or Butterfly shut-off valves available
Available in flanged, grooved, or grooved X flanged end connections for installation versatility
Ideal for any backflow replacement
Utilizes Zurn Wilkins low head loss Compound Check for reliable and superior performance
No threads or taps in body or cover, eliminating exposure to corrosion
Single access cover reduces down time
Attributes
ANSI: ANSI B16.42
ASSE Standards: ASSE 1013
AWWA: AWWA C-511
CSA Certified: CSA
Coating: Fusion Epoxy
Collection: Model 375
End Connection 1: Flanged
End Connection 2: Flanged
End Connections: Flanged
FM Approved: Yes
Height: 32-1/2 in
IAPMO Listed: Yes
Installation Type: Horizontal, Vertical
Lead Law Compliance Level: Lead Law Compliant and Certified
Lead Law Compliant: Yes
Length: 40-4/5 in
Material: Ductile Iron
Maximum Temperature: 140
Minimum Temperature: 33
NSF Certified: Yes
Number of Handles: Two Handle
Pressure - High: 175
Pressure - Maximum: 350 psi
Pressure Class: 150#
Proposition 65: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Recommended Valve Application: Water
Restrictions: This item is classified by UPS as oversized and must ship via LTL freight - additional charges apply.
Temperature Range: Up to 140 Deg F
UL Listed: Yes
Upc: 612052044941
Valve Body Material: Ductile Iron
Valve Body Style: Inline
Valve Disc Material: Rubber
Valve Operator: Hand Wheel
Valve Port Opening: Full Port
Valve Seat Material: Stainless Steel
Valve Size: 4 in
Valve Type: Reduced Pressure Principle Assembly
Weight: 328 lb
Width: 21-1/2 in
