System Sensor DST10 Tube

The System Sensor DST10 is a heavy-duty metal duct sampling tube engineered for duct smoke detection across wide-span HVAC systems. Designed for use with both conventional and intelligent duct detectors, specifically the InnovairFlex series, this 10-foot rigid sampling pipe ensures consistent air pressure flow to the sensor chamber. It is rated for duct widths from 8 ft to 12 ft, providing reliable smoke detection airflow in large-scale commercial air handling units. The steel construction offers superior durability compared to plastic alternatives, preventing sagging or vibration-induced failure in high-velocity environments. Proper installation requires the tube to span the entire width of the duct, allowing for accurate HVAC fire safety monitoring. This duct smoke detector accessory is essential for compliance with NFPA 72 requirements regarding air sampling in large diameters. Ensure the sampling holes face the airflow and the end cap is securely installed to maintain the necessary differential pressure for sensor activation.

• Wide Span Compatibility: Optimized for large-scale duct widths (8 ft to 12 ft) where standard tubes fail to reach.
• Universal System Sensor Fit: Seamlessly integrates with D4120, DNR, and DNRA duct smoke detector housings.
• Enhanced Structural Integrity: Metal construction prevents bending in high-static pressure environments.
• Simplified Field Installation: Pre-drilled sampling ports reduce secondary onsite modifications.

Can the DST10 be cut to fit a 9-foot duct?
Yes, the 10-foot tube can be field-shortened to match the specific duct width, provided the tube still spans at least 80% of the duct and the end cap is re-installed to seal the system.

How do I ensure proper airflow through the sampling tube?
Orient the sampling holes directly into the air stream and use a manometer to verify the pressure differential across the inlet and exhaust tubes meets the detector's minimum requirements.

Does this tube work with non-System Sensor housings?
The DST10 is specifically designed for the System Sensor InnovairFlex line; using it with other brands may result in improper sealing and failure to detect smoke due to incorrect port alignment.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.