Technology & Certification
Continuous R&D and global certifications
Patents
We hold patents for our proprietary valve design technology and continuously pursue technological innovation.
Core Patent Technology
In 2008, we registered 6 patents related to the flame emission prevention Arrester Unit, securing proprietary safety technology. Based on this, we obtained 11 international classification society certifications.




2021
High-Temperature Exhaust Pipe Relief Valve Technology
DF engine exhaust pipe relief valve design technology operating at up to 700°C
2020
DF Engine Intake Manifold Relief Valve Design
CFD and structural analysis-based relief valve design for DF engine intake manifold
2008
Arrester Unit to Protect Flame Emission (6 Patents)
6 patents registered for Arrester Unit preventing external flame emission from crankcase explosion relief valves
Crankcase Explosion Relief Valve Structural Design
Structural design technology for self-closing explosion relief valve