Potter Electric Signal stn-5 Duct Sampling Tube 5 Ft

Product Description

The POTTER ELECTRIC SIGNAL stn-5 is a metal duct sampling tube designed for use with duct-type smoke detectors in HVAC air handling systems. The tube draws air samples from inside the ductwork and delivers them to the detector housing mounted on the outside of the duct, allowing the detector to continuously monitor airflow for smoke. At 5 feet in length with pre-drilled sampling holes, it is suited for duct widths ranging from 4 feet to 8 feet. Installation is typically performed by a licensed fire alarm or HVAC technician during new construction or system retrofit.

The stn-5 sampling tube is used in commercial and residential HVAC applications where duct smoke detection is required by fire code or building specification. It mounts through the duct wall and extends across the interior air stream, pulling representative air samples toward the detector. The pre-drilled hole pattern is designed to provide consistent sampling across the duct width within the stated range.

Key Features

• Metal construction for durability in HVAC duct environments
• 5-foot length covers duct widths from 4 feet to 8 feet
• Pre-drilled sampling holes for consistent air sampling across duct interior
• Designed for use with compatible duct-type smoke detector housings
• Suitable for new construction and retrofit installations

Compatibility

Designed for use with duct smoke detector housings requiring a 5-foot sampling tube for ducts ranging from 4 feet to 8 feet in width. Consult the detector housing documentation to confirm tube compatibility before installation.

Installation Notes

Installation should be performed by a licensed fire alarm technician or qualified HVAC professional in accordance with NFPA 72 and local authority having jurisdiction requirements. Power down and lock out the air handling unit before cutting the duct opening and inserting the sampling tube. Verify the tube is properly secured to the duct wall and that the detector housing is mounted according to the manufacturer's instructions. Do not operate the air handling unit until the detector housing is fully installed and the system has been tested.

Technical Specifications

• Material: Metal
• Tube Length: 5 feet
• Compatible Duct Width Range: 4 feet to 8 feet

Standard Information

• Brand: POTTER ELECTRIC SIGNAL
• Manufacturer Part Number: stn-5