Zurn 4-350ASTOSY 4" Ductile Iron Flanged 350 psi Backflow Preventer

Zurn 4-350ASTOSY 4 in. Ductile Iron Flanged 350 psi Backflow Preventer is designed for reliable performance in both residential and commercial applications. Constructed from durable stainless steel, this backflow preventer features corrosion-resistant body and access covers, ensuring a long service life even in challenging conditions. Weighing in at 184 lb, its lightweight design and short lay-length facilitate easy and compact installation, making it an ideal choice for replacing existing units. This model is compliant with CSA® standards and meets ASSE® and AWWA regulations, providing peace of mind for professionals and homeowners alike. Its versatility is enhanced by multiple gate valve and end connection options, allowing for seamless integration into various plumbing systems. The valve operates efficiently at a maximum pressure of 350 psi, with a temperature range of up to 140°F, making it suitable for applications involving fire protection, potable water, and waterworks. Featuring a full port opening, the Zurn 4-350ASTOSY is equipped with a double check valve assembly, operated by a user-friendly hand wheel. The valve body is made from 304L stainless steel, while components such as the valve disc and seat utilize EPDM for enhanced durability. Installation flexibility is further supported, as the valve can be set up in both horizontal and vertical orientations. In addition to its robust performance, the backflow preventer is UL® and FM® approved, ensuring it meets rigorous safety standards. For those requiring custom lengths, the Model 350ASTR is available for drop-in replacements. Trust Zurn to deliver quality solutions that enhance the efficiency and reliability of your plumbing systems.

4 in. Ductile Iron Flanged 350 psi Backflow Preventer