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The Zurn Wilkins 6" Double Check Detector Assembly (DCDA) with Grooved Butterfly Valve and Stainless Steel Body is a robust backflow prevention device designed specifically for fire protection systems. This assembly effectively prevents the reverse flow of non-potable water, such as stagnant water or fire protection substances, from entering the potable water supply due to backpressure or backsiphonage. It is engineered to ensure compliance with plumbing codes and fire safety regulations, making it an essential component for safeguarding public health and maintaining system integrity in commercial and industrial settings. 6-inch Nominal Size: Perfectly sized for standard 6-inch piping systems commonly found in commercial and large residential fire safety installations. Double Check Backflow Prevention: Incorporates a dual check valve system for reliable protection against reverse flow, preventing contaminants from entering clean water supplies. Grooved Butterfly Valve Design: Features an integrated grooved butterfly valve for simplified installation, maintenance, and quick shut-off without compromising system integrity. Stainless Steel Body Construction: Manufactured with a durable 304L grade stainless steel body and access covers, offering superior corrosion resistance and ensuring long-lasting performance in harsh conditions. This lightweight design is often significantly lighter than traditional ductile iron assemblies. Metered Bypass System: Includes a metered bypass to efficiently detect leaks and any unauthorized water usage, helping to prevent costly water damage and unnecessary expenses. Short Lay-Length: Engineered with a compact design and short lay-length for easy installation in confined or limited spaces, and ideal for retrofit applications. Horizontal and Vertical Installation: Approved for versatile installation in both horizontal and vertical flow-up positions, where local codes permit. Lead-Free Compliant: Meets lead-free requirements, adhering to stringent health and safety standards. UL® Classified & FM® Approved: This assembly is UL Classified and FM Approved, ensuring it meets rigorous industry standards for fire protection applications. Maximum Working Pressure: Rated for a maximum working water pressure of 175 PSI. This Zurn Wilkins DCDA provides peace of mind by offering dependable backflow prevention and leak detection for your fire sprinkler system. Its robust stainless steel construction resists corrosion, extending the lifespan of the unit and reducing maintenance costs. The grooved butterfly valve simplifies installation and routine servicing, minimizing downtime and ensuring continuous system reliability. With its metered bypass, you gain the ability to monitor for leaks and unauthorized water usage, contributing to significant cost savings and better resource management. This assembly is a critical investment for contractors and facility managers seeking a durable, compliant, and easy-to-maintain solution for safeguarding their water supply in fire protection applications.