The M 7900A End of Line Air Vent is a specialized device designed for wet pipe fire sprinkler systems with metallic piping. Tailored for fire protection professionals, it efficiently manages trapped air to maintain system integrity and compliance with regulatory standards.

• Integrated Components: Incorporates a 1-inch isolation ball valve, barrel strainer, automatic air vent, and hose-threaded purge valve into a single durable unit, simplifying installation and ongoing maintenance.
• Durable Construction: Made from high-quality metal materials to withstand harsh conditions typical in wet pipe sprinkler systems, ensuring long-lasting performance and resistance to corrosion.
• Patented Leak-Free Venting: Automatically releases trapped air without any leaks, eliminating the need for external drip pans or drain lines, optimizing space and reducing maintenance complexity.
• Regulatory Compliance: Fully compliant with NFPA 13 for correct air vent placement and NFPA 25 for routine system maintenance, providing confidence in meeting fire protection codes.
• Third-Party Certification: UL Listed and FM Approved, affirming reliable performance and safety in critical fire protection applications.
• Maintainability: Features a hose-threaded purge valve for rapid air expulsion during system fill and serves as a vacuum breaker during drain-down, streamlining system servicing and reducing downtime.
• Optimal Placement Capability: Designed for installation at system high points, branch line ends, and atop supply risers to maximize air removal and ensure uninterrupted sprinkler operation.

By addressing the common issue of trapped air in metallic wet pipe sprinkler systems, the M 7900A helps prevent accelerated corrosion and potential system failures. This air vent automates air release and simplifies maintenance tasks, supporting the durability and reliability of fire sprinkler systems. Fire system installers and maintenance teams benefit from reduced system downtime, easier compliance verification, and improved overall system longevity. Its compact, all-in-one design makes it a practical choice for enhancing air management and safeguarding fire protection investments.