Airflow Instruments Duct Leakage Testers

Air leakage in ductwork drives unnecessary fan energy, undermines airflow delivery, and complicates balancing across production areas and support spaces. Duct leakage testers give facility teams a practical way to measure, trend, and compare leakage against project targets and internal SOPs.

A typical test setup includes a compact blower, calibrated flow measurement components, and a digital pressure readout. Technicians isolate a duct section, apply a test pressure, and record the corresponding leakage flow. Clear displays help users reach and stabilize setpoints, while integrated calculations reduce manual work. Many systems include data logging and job tagging, which helps produce consistent reports for commissioning agents, energy teams, and maintenance leadership.

Where it helps most:

• New installation verification before handover
• Post-repair and post-retrofit checks to validate workmanship
• Energy projects targeting fan power and thermal losses
• Root-cause analysis for underperforming zones or lines
• Periodic QA to maintain HVAC performance across sites

Key considerations when selecting a tester:

• Flow range that covers both small branches and large trunks
• Pressure control stability for easier, faster tests
• Intuitive user interface and clear pass/fail criteria based on your method
• Rugged housings, hoses, and quick connects suited for jobsite use
• Data export options compatible with your commissioning templates

By quantifying leakage, teams can prioritize sealing efforts, track improvements over time, and compare contractors based on measured performance. This data-driven approach supports budgets and helps direct work to the highest-value duct sections. Over time, consistent testing supports better airflow delivery, more predictable ventilation, and reduced energy spend.

For multi-site operations, standardizing test procedures and report formats enables benchmarking across facilities. If you are building a program, TSI can help you select ranges, accessories, and workflows aligned to your standards. Connect with a specialist to discuss your duct types, pressure targets, and documentation needs.