The Edwards SD-T18 is an 18 inch air sampling tube designed for use with Edwards commercial duct smoke detector housings. It provides reliable air sampling across HVAC ductwork, allowing compatible duct smoke detectors to monitor airflow for the presence of smoke within ventilation systems.
Constructed from durable aluminum, the SD-T18 is engineered for long service life and accurate air sampling in commercial heating, ventilation, and air conditioning applications. It is intended for use in ducts where an 18 inch sampling tube meets the installation requirements.
Product Functions
- Draws air from HVAC ductwork
- Delivers sampled air to the duct smoke detector housing
- Supports accurate smoke detection
- Installs through the duct wall
- Helps monitor airflow within ventilation systems
- Supports commercial HVAC smoke detection
Electrical & System Information
The SD-T18 is a passive mechanical accessory and contains no electrical or electronic components. It installs directly into the sampling tube opening of the duct detector housing and extends 18 inches into the air duct to collect representative airflow for smoke detection.
Proper tube selection is based on duct width and installation requirements to ensure effective sampling performance.
Features
- 18 inch sampling tube
- Aluminum construction
- Corrosion-resistant design
- Lightweight construction
- Commercial HVAC accessory
- Accurate air sampling
- Easy installation
- Durable construction
- Designed for duct smoke detection
- Indoor commercial application
Mounting & Design
The SD-T18 installs through the wall of a compatible HVAC duct and secures to the duct detector housing. Its rigid aluminum construction provides dependable support while extending into the airflow to collect representative air samples.
The tube is designed for straightforward installation and replacement during routine maintenance or system upgrades.
Protection & Applications
Suitable for:
- Commercial Fire Alarm Systems
- HVAC Duct Smoke Detection
- Air Handling Units
- Office Buildings
- Hospitals
- Healthcare Facilities
- Schools and Universities
- Hotels
- Industrial Facilities
- Warehouses
- Government Buildings
- Manufacturing Facilities
Technical Specifications
Manufacturer: Edwards
Parent Company: Carrier
Model: SD-T18
Product Type: Air Sampling Tube
Length: 18 Inches 455 Millimeters
Construction: Aluminum
Installation: Duct Mounted
Application: HVAC Duct Smoke Detection
Use: Indoor Commercial Fire Alarm Systems
Function: Air Sampling for Duct Smoke Detector Housing
Listings: Intended for use with listed Edwards duct smoke detector housings. Verify product labeling, installation instructions, local codes, and project requirements before installation.
Applications
The Edwards SD-T18 is designed for commercial HVAC duct smoke detection systems requiring an 18 inch air sampling tube. Typical applications include office buildings, hospitals, schools, universities, hotels, industrial facilities, warehouses, manufacturing plants, government buildings, and other commercial occupancies where duct smoke detection is installed to monitor air handling systems.



