Zurn 4-375ASTOSY 4" Stainless Steel Flanged 350 psi Backflow PreventerZurn 4-375ASTOSY 4 in. Stainless Steel Flanged 350 psi Backflow Preventer combines innovative engineering with robust construction to ensure reliable performance in both residential and commercial applications. Designed for versatility, this backflow preventer features flanged, grooved, or grooved x flanged end connections, making installation seamless and efficient, even in compact spaces. Certified by CSA® and IAPMO®, this unit meets stringent standards, including ASSE® 1013 and AWWA compliance for potable water and waterworks applications. The patented Compound Check mechanism enhances flow characteristics while allowing installation in lower-pressure systems, ensuring dependable operation. Its durable stainless steel body is engineered to resist corrosion, providing a long-lasting solution for your plumbing needs. With a height of 23-1/4 inches and a length of 34-7/8 inches, this backflow preventer is designed to fit into various configurations. It operates effectively at a maximum pressure of 350 psi and is rated for temperatures up to 140°F. The valve's full port opening and hand wheel operator facilitate ease of use and maintenance. Ship via UPS, this model is also FM® approved and complies with ANSI 61 and ASME B16.42 standards, ensuring you receive a high-quality product. Its lead law compliance and NSF certification further underscore its safety and reliability. Weighing in at 212 lbs, the Zurn 4-375ASTOSY is a robust choice for those looking to enhance their plumbing system’s efficiency and performance.
4 in. Stainless Steel Flanged 350 psi Backflow Preventer
CSA® Certified
IAPMO® Listed
Approved by the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California
Flanged, grooved, or grooved x flanged end connections provide versatile installation
Short lay-length offers reduces installation time and costs in compact spaces
Patented Compound Check offers reliable performance, improved flow characteristics, and installation in lower-pressure systems
Stainless steel body protects against corrosion
ASSE® Listed 1013
AWWA Compliant C511 (with gates only), and C550
FM® Approved
Attributes
ANSI: ANSI 61
ASME: ASME B16.42
ASSE Standards: ASSE 1013
AWWA: AWWA C-511, AWWA C-550
Coating: Electrostatic Epoxy
Collection: Model 375AST
End Connection 1: Flanged
End Connection 2: Flanged
End Connections: Flanged
FM Approved: Yes
Height: 23-1/4 in
IAPMO Listed: Yes
Installation Type: Horizontal, Vertical
Lead Law Compliance Level: Lead Law Compliant and Certified
Lead Law Compliant: Yes
Length: 34-7/8 in
Material: Stainless Steel, Plastic, Rubber
Material Type: 300, 304L, Buna-N, Noryl®, EPDM
Minimum Temperature: 33
NSF: NSF 61
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: Potable Water, Waterworks
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: 612052112237
Valve Body Material: 304L Stainless Steel
Valve Body Style: Inline
Valve Disc Material: EPDM
Valve Operator: Hand Wheel
Valve Port Opening: Full Port
Valve Seat Material: Stainless Steel
Valve Size: 4 in
Valve Stem: Outside
Valve Type: Reduced Pressure Zone Assembly
Weight: 212 lb
Width: 12-1/2 in
