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Leak Test Machine for Donghee

Proof Pressure

875 bar

Extreme Load
System Capacity

175L

H2 Storage Tanks
Leak Rate

10E^-4

atm.cc/s (Vacuum)
 
Installed

Korea

Donghee Facility

Reference Project: Hydrogen Mobility

Structural Validation for 175L H2 Storage.

Nolek partnered with Donghee in Korea to develop a massive Inside-Out Hard Vacuum leak test system for 175L Hydrogen tanks. Operating at pressures up to 875 bar, this specialized workstation manages complex charging and discharging sequences while providing precise temperature control, ensuring the absolute safety and integrity of future-ready clean energy storage.

 
  The Challenge

Validating extreme structural integrity (1000 bar proof) while managing the thermodynamic heat-up during high-speed gas charging.

 
◈ The Solution

An integrated vacuum chamber system featuring Helium mass spectrometry, an automated gas recovery station, and closed-loop temperature stabilization.

H2 Technology Standards

Industrial instrumentation designed for the highest pressure thresholds in modern green energy storage.

Thermal Control

Extreme Dynamics

Gas Management

Leak Test Machine for Donghee.

Technical Specifications

Precision tracer gas validation for high-capacity Hydrogen storage systems. 

Specification

Details

Test Piece

 175L H2 Tank (Hydrogen Storage)

Test Method

Inside-out hard vacuum (Helium Mass Spectrometry) 

Testing Gas

5% Helium + 95% N2 (Recyclable)

Max Test Pressure

Up to 875 Bar (1000 bar proof capable)

Max Leak Rate

9.0 x 10E-4 atm.cc/s

Cycle Time

Less than 5 hrs / cycle (Thorough soak testing)

Installed Location

Korea (Donghee Facility) 

Industry

Hydrogen Mobility / Renewable Energy