Dexon Technology is advancing its leak tightness verification services using helium leak testing—one of the most precise non-destructive testing (NDT) methods in the industry.
Dexon is currently the only team in Thailand with an ASNT Level III-certified expert and one of only a few companies in Southeast Asia to hold such accreditation.
Micron-Level Precision: Detecting Leaks as Small as 10⁻¹² mbar·L/s
Helium leak testing uses helium as a tracer gas, making it ideal for detecting leaks and airflow in various systems.
Helium is inert, safe, and among the smallest molecules, allowing it to:
Detect microleaks at the micron level
Offer significantly higher accuracy than traditional methods
Operate quickly, reducing shutdown time
Boost machine performance—especially in large-scale steam turbines at power plants
This level of precision is critical for industries that require maximum safety and minimal contamination.
High-Accuracy Testing for Major Industries
Dexon’s Helium Leak Testing is used in:
LNG Storage Tanks & Cryogenic Pipelines: For transporting and storing ultra-cold liquefied natural gas
Heat Exchangers, Condensers, and Vacuum Systems
Pressure Vessels, Chemical Reactors, and Process Equipment
Seals, Valves, and Electronic Components
Dexon offers flexible testing services during both shutdowns and normal operations, helping minimize downtime and production disruption.
Enabling Environmental & Operational Sustainability
This service supports environmental protection and system integrity through:
Emission Leak Testing: Detecting gas leaks into the atmosphere
Ingress Testing:Detecting air leakage into systems
Both are crucial for reducing emissions and maintaining product purity—key goals for modern industrial plants committed to safety & sustainability.
“Precision isn’t just about performance—it’s our responsibility. At Dexon, we’re committed to helping clients operate more safely and sustainably. Our mission is to reduce resource loss and environmental impact through cutting-edge inspection technologies.”
— Adisak Mananas, Director of Operations

Dexon Technology