UNIHYS: South Korea's leading safe hydrogen connection solution provider, pioneering compliance with new KGS standards
August 26, 2026
Annie Nguyễn, VAHC Secretariat
Overview of UNIHYS
UNIHYS is a specialized manufacturer of connection solutions for the hydrogen, LNG, and high-pressure industrial gas industries. Established on July 1, 2024, in Busan, South Korea, the company has rapidly established its position with KGS (Korea Gas Safety Corporation)-certified products and international collaborations.
Core Products and Applications
-
Hydrogen Tube Trailer Charging Hose Assembly: A strategic product for hydrogen refueling stations and shipping centers, meeting South Korea's and international safety standards.
-
LNG Vehicle & Dispenser Valves (7 types): Specialized valves for vehicles and LNG stations, operating at cryogenic temperatures of -162°C and working pressure of 2MPa.
-
LPG Breakaway: Safety device for LPG stations, certified by KGS.
-
Other Products: Valves for toxic gases (semiconductor), PRVs for liquid hydrogen vehicles, pressure vessel assemblies for FCEVs.
Technological Strengths and Capabilities
UNIHYS operates modern production facilities in South Korea, equipped with hose crimping machines, laser markers, and water/gas pressure testing systems, ensuring a rigorous quality control process.
By August 2026, UNIHYS has built an extensive IP portfolio, including one registered patent, two PCT applications, two Korean patent applications, and multiple design/trademark registrations. Notably, the company holds the first KGS certification in South Korea for a hydrogen charging hose assembly, capable of withstanding 10,000 pressure cycles.
Meeting the Revised KGS Standards (2026)
From January 1, 2027, new KGS regulations mandate that all high-pressure hoses used for hydrogen at ≤20MPa must be performance-certified. UNIHYS is one of the leading suppliers meeting this new standard with superior features:
-
Superior Durability: Hydrogen-specific hoses (20MPa) with a service life of 100-180 connection cycles (compared to 3-30 cycles for conventional products).
-
High-Grade Materials: High-strength brass nuts replacing conventional brass.
-
Specialized Safety Features: Excess flow valves, safety wires preventing hose separation, anti-kink springs, and protective nut caps.
-
Non-Sparking Connection Tools: Designed to reduce operator fatigue and extend HYS-Seal life.
-
Quality Control: Each product undergoes a 25MPa leak test before shipment.
Global Activities and Direction
UNIHYS has organized seminars in Vietnam under the VAHC network, with participation from partners in Germany, Japan, the US, and Australia. The company aims to become a trusted technology partner for the hydrogen market in the Asia-Pacific region and globally.
Conclusion
UNIHYS exemplifies the integration of advanced technology and stringent safety compliance. With its KGS certifications, IP portfolio, and products designed for the latest safety regulations, UNIHYS is positioning itself as a strategic partner for the sustainable development of the hydrogen industry.
Contact for supporting in Vietnam: contact@vahc.com.vn
