Ultrasonic Tightness Testing
Find Leaks. Verify Seals. Avoid Costly Surprises.
Ultrasonic tightness testing is a fast, simple way to confirm whether a sealed volume is truly sealed. Whether it’s a hatch, tank, container, cleanroom, or vehicle door — ultrasound helps you find the exact source of the leak.
By placing an ultrasonic transmitter inside a closed volume and scanning from outside with a handheld detector or acoustic camera, tightness testing gives you fast answers without needing pressure, gas, or water.
What Are Leaks Costing You?
Tightness issues often go unnoticed — until they cause real damage. Leaking hatches, gaskets, and seals can mean lost product, damaged cargo, contaminated environments, or failed inspections. Poor seals lead to:
Water Ingress
Leaks around ship hatches or containers lead to cargo damage and insurance claims.
Energy Waste
Air leaks in cleanrooms or buildings inflate HVAC costs and reduce thermal performance.
Contamination
Failed seals let in dust, moisture, or emissions that compromise product quality.
Failed Inspections
Unsealed hatches or tanks can fail class inspections or environmental regulations.
Our Solutions for Tightness Testing
Our route-based data collection solutions combine airborne and contact ultrasound sensors with precision vibration analysis into versatile, multi-purpose reliability data collectors. Fully integrated with the world's most powerful predictive maintenance software, these intuitive tools streamline asset inspections, simplify workflows, and deliver superior reliability outcomes.
Learn MoreOur ultrasound and vibration permanent monitoring solutions offer industry-leading sensitivity for the earliest possible fault detection. Engineered for durability and ease-of-use, these solutions provide remote, automated diagnostics—reducing maintenance costs and delivering a comprehensive, facility-wide view of asset health.
Learn MoreImaging technologies enhance visibility into hidden problems—revealing heat, sound, and motion that the eye can’t see. From thermal and acoustic imaging to motion amplification, reliability teams can use these vision enhancing technologies to detect failures. Our imaging solutions are a powerful way to see more, understand faster, and act with confidence.
Learn MoreUltrasound-guided lubrication empowers maintenance teams to grease bearings with precision by monitoring friction in real time during greasing tasks. By comparing live decibel readings to historical baseline data, technicians can identify when lubrication is truly needed, and when enough has been applied; preventing both under- and over-lubrication.
Learn MoreHow Ultrasonic Tightness Testing Works
01
Place the Transmitter
Install the ultrasonic tone generator inside the test volume.
02
Seal the Enclosure
Close doors, hatches, panels, or containment covers as normal.
03
Scan from the Outside
Use an airborne sensor or imaging camera to sweep along gaskets, seams, and joints.
04
Locate and Verify
Listen for signal spikes and visually pinpoint leaks for repair and retesting.
Ultrasonic Tightness Testing for Underground Storage Tanks
SDT Ultrasound Solutions delivers a precise, non-invasive method for detecting leaks in underground storage tanks (USTs)—without the need to open, empty, or clean the tank. By combining advanced ultrasonic sensing with a guided, software-driven process, this approach ensures accurate, efficient testing that meets international regulatory standards.
1. Dual Sensor Setup
One sensor is submerged in the liquid; the second is positioned in the vapor space above.
3. Ultrasonic Monitoring
Acoustic changes are monitored in real time to identify leak points.
5. TankTest Reporter
Built-in firmware walks the operator through each step, reducing human error.
2. Partial Vacuum Phase
A controlled vacuum is applied to enhance leak signal detection.
4. Guided Mode
Built-in firmware walks the operator through each step, reducing human error.
