The Viking VXD Preaction Double Interlock Release System is a precision-engineered component designed for commercial and industrial fire protection systems. Ideal for facilities that demand stringent control over sprinkler activation, this system ensures water is released only when absolutely necessary, protecting sensitive environments like refrigerated spaces from accidental discharge.

• Durable Construction: Made from corrosion-resistant ductile iron, offering long-lasting reliability even in harsh or moisture-prone conditions.
• Double Interlock Design: Requires dual activation—both from the detection system and the sprinkler piping—to prevent false releases and ensure accurate water flow control.
• Certified Safety: UL Listed and FM Approved, meeting rigorous standards to guarantee dependable performance under emergency conditions.
• Compatibility: Engineered for integration with both electric and pneumatic preaction sprinkler systems, enhancing versatility across varied fire protection setups.
• NFPA Compliance: Designed to comply fully with NFPA standards, including NFPA 13, ensuring regulatory adherence and safe installation practices.
• Integrated Pressure Gauges: Equipped with clear pressure indicators for easier monitoring and maintenance of system status in real-time.
• Emergency Release Capability: Manual emergency release valves allow for controlled system activation during critical situations.

This Viking VXD system minimizes the risk of costly water damage by preventing unintentional activations, making it especially suitable for environments where accidental discharge could disrupt operations or damage valuable assets. Its robust build and industry certifications provide assurance of safety and compliance, while the dual interlock mechanism offers precision control, reducing false alarms and unnecessary water use. Perfect for facilities requiring reliable preaction sprinkler supervision, this system supports both electric and pneumatic setups, granting flexibility tailored to specific fire safety requirements.