Zurn 4-375ADA 4 in. Ductile Iron Flanged 350 psi Backflow Preventer is engineered to provide reliable protection against unauthorized water use in fire lines. This robust 4" reduced pressure detector assembly features flanged end OS&Y gate valves and is available with options for tamper switch equipped butterfly valves, enhancing both security and functionality. Constructed from durable ductile iron, the backflow preventer is designed to withstand high pressures, with a maximum operating pressure of 350 psi and a temperature range from 33°F to 180°F. The valve body style is inline, ensuring smooth water flow and minimal pressure drop. The stainless steel valve seat and EPDM valve disc materials contribute to its long-lasting performance and resistance to wear. This backflow preventer meets ASSE 1047 and AWWA C-511 standards, ensuring compliance and reliability for both indoor and outdoor installations. With ANSI 61 and ANSI B16.1 certifications, it is suitable for a wide range of applications. The product is FM approved and NSF certified, providing peace of mind for professionals and homeowners alike. Measuring 32-1/2 inches in height, 41-3/10 inches in length, and 21-1/2 inches in width, this assembly is constructed for easy installation in vertical orientations. Weighing 341 lb, it is classified as oversized and requires LTL freight for shipping. Zurn’s 4-375ADA Backflow Preventer ensures your water systems are protected with quality and precision, making it an essential choice for contractors and builders focused on creating efficient and modern plumbing solutions.
4 in. Ductile Iron Flanged 350 psi Backflow Preventer
ANSI: ANSI 61, ANSI B16.1
ASSE Standards: ASSE 1047
AWWA: AWWA C-511
CSA Certified: CSA
Coating: Epoxy
Collection: Model 375ADA
End Connection 1: Flanged
End Connection 2: Flanged
End Connections: Flanged
FM Approved: Yes
Height: 32-1/2 in
IAPMO Listed: No
Installation Type: Indoor, Outdoor, Vertical
Lead Law Compliance Level: Lead Law Compliant and Certified
Lead Law Compliant: Yes
Length: 41-3/10 in
Material: Ductile Iron
Maximum Temperature: 180
Minimum Temperature: 33
NSF Certified: Yes
Number of Handles: Two Handle
Pressure - High: 175
Pressure - Maximum: 350 psi
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.
UL Listed: Yes
Upc: 612052080956
Valve Body Material: Ductile Iron
Valve Body Style: Inline
Valve Disc Material: EPDM
Valve Operator: Wheel Handle
Valve Port Opening: Standard Port
Valve Seat Material: Stainless Steel
Valve Size: 4 in
Valve Type: Reduced Pressure Zone Assembly
Weight: 341 lb
Width: 21-1/2 in
