10" Double Check Valve With OSY Lateral Flange

The 10" Double Check Valve with OS&Y Lateral Flange is engineered for commercial fire protection and plumbing assemblies, functioning as a vital backflow prevention device to safeguard municipal and potable water supplies from contamination. Installed directly inline, this heavy-duty mechanical assembly utilizes a dual check mechanism to reliably prevent non-health hazard pollutants from reversing flow into the primary drinking water infrastructure.

Designed to satisfy stringent cross-connection control and life safety requirements governed by standards such as NFPA 13 and NFPA 25, this device ensures system integrity, meets regional plumbing codes, and facilitates routine operational testing and inspection mandated for commercial fire suppression networks.

Key Features & Construction

• Size: 10-inch nominal diameter built for integration into large-scale commercial pipelines and fire protection networks.
• OS&Y Lateral Flange: Features an Outside Stem and Yoke design providing clear, immediate visual confirmation of valve open or closed status during testing and emergency response.
• Double Check Mechanism: Incorporates two independently operating spring-loaded check modules to effectively block backflow and protect potable water supplies.
• Corrosion-Resistant Build: Manufactured from robust, durable materials engineered to withstand aggressive environments, wear, and continuous line pressure.
• Serviceability: Internal components allow for straightforward maintenance access and inspection without requiring extensive pipeline disassembly, minimizing facility downtime.

Contractors and facility managers must verify all local Authority Having Jurisdiction (AHJ) mandates and engineering specifications prior to system installation.
Documentation: Download Manufacturer Technical Data & Cut Sheet (PDF)