ULVAC Vietnam Representative Office
Helium Leak Testing
Helium Leak Testing (Helium Leak Test) is a highly sensitive method used to detect and evaluate leaks in equipment, vacuum chambers, and systems that require a high level of leak tightness.
ULVAC Vietnam provides Helium Leak Testing services using ULVAC’s HELIOT Helium Leak Detectors, supporting businesses in verifying equipment leak tightness and identifying the condition of leaks.
1. When Is Helium Leak Testing Necessary?
The required vacuum level cannot be achieved.
The pump-down time is abnormally long.
A leak is suspected in the vacuum chamber or piping.
Leak tightness needs to be verified after installation, maintenance, or repair.
The location and severity of a leak need to be identified.
Early testing helps detect problems before they lead to serious equipment damage or production line downtime.
2. ULVAC Helium Leak Detector Testing Services
ULVAC Vietnam uses the HELIOT Helium Leak Detector to perform leak testing for vacuum equipment and systems.
Our services include:
- Inspecting and evaluating leak conditions.
- Detecting leak locations using Helium.
- Evaluating leak rates.
- Verifying leak tightness after installation, maintenance, or repair.
- Supporting root cause identification and recommending appropriate solutions.
In particular, we do more than just supply leak detection equipment—we also provide comprehensive helium leak testing services.
3. Key Technical Specifications of the ULVAC HELIOT 900
ULVAC’s HELIOT 900 Series is designed for leak testing applications that require high sensitivity and stable measurement performance.
| Specification | Value |
|---|---|
| Minimum detectable leak rate | < 5 × 10⁻¹³ Pa·m³/s |
| Detectable gas | Helium (⁴He), Hydrogen (²H₂) |
| He pumping speed at test port | > 5 L/s (Ultra Flow) |
| Maximum connection pressure | < 1.200 Pa |
| Startup time | About 2 mins |
| Test modes | Auto / Ultra / Fine / Gross / Sniffer |
| Communication interfaces | RS232C / RS485 / Analog DC / Digital I/O |
4. On-Site Leak Testing Support
The ULVAC Vietnam engineering team provides on-site Helium leak testing support at factories, helping businesses quickly identify leakage issues and reduce equipment downtime.
Contact ULVAC Vietnam today for consultation and an assessment of your leak testing requirements!
