Advancing Hydrogen Vehicle Safety: FITOK 6D Series Tube Fittings Successfully Tested to Key Hydrogen Energy Standards

Advancing Hydrogen Vehicle Safety: FITOK 6D Series Tube Fittings Successfully Tested to Key Hydrogen Energy Standards

 

FITOK is proud to announce that its star product, the 6D Series Tube Fittings, has successfully passed testing against two core hydrogen energy standards – CSA/ANSI HGV 3.1:22 and ISO 19887-1:2024 –and has obtained a Declaration of Compliance issued by the internationally recognized certification body Kiwa. This milestone demonstrates that the FITOK 6D Series Tube Fittings have reached world-class levels of safety, sealing performance, and reliability for hydrogen fuel systems, providing strong assurance for critical components in hydrogen-powered vehicles.

 

Advancing Hydrogen Vehicle Safety: FITOK 6D Series Tube Fittings Successfully Tested to Key Hydrogen Energy Standards

 

As the global energy transition accelerates, hydrogen energy has become a cornerstone for achieving carbon neutrality. However, due to the small size of hydrogen molecules and their tendency to permeate, hydrogen poses unique challenges such as hydrogen embrittlement in metallic materials. These challenges place unprecedented demands on the sealing performance, durability, and material compatibility of hydrogen delivery systems.

 

To address these issues, CSA/ANSI HGV 3.1:22_Fuel system components for compressed hydrogen gas powered vehicles (North American standard) and ISO 19887-1:2024_Gaseous Hydrogen - Fuel system components for hydrogen fuelled vehicles (International standard) were established to define the minimum safety and performance requirements for hydrogen gas pipeline connectors. They serve as an essential "entry ticket" for products to participate in the global mainstream hydrogen energy market. Moreover, following the repeal of EU Regulation (EC) 79/2009, ISO 19887-1:2024 is regarded as the most authoritative replacement standard, particularly for regulatory gaps such as liquid hydrogen systems.

 

The FITOK 6D Series Tube Fittings excelled in these tests, thanks to their superior design and manufacturing process. The tests comprehensively evaluated multiple critical performance factors:

 

 
Test Item Validation Focus Role in Hydrogen Vehicles
Hydrostatic Strength Validates structural integrity and resistance to bursting under extreme conditions far beyond working pressure. Prevents rupture of high-pressure lines under extreme conditions (e.g., abnormal system pressure surges), which could cause hydrogen leakage; serves as a fundamental safety barrier in high-pressure systems.
Excess Torque Resistance Validates the ability to withstand torque beyond the specified installation value without permanent deformation or damage to critical components. Ensures the sealing structure is not compromised by over-tightening resulting from improper maintenance or installation errors, preventing hydrogen leakage or fitting loosening caused by stress concentration.
Bending Moment Validates sealing and structural stability under non-axial forces (e.g., bending stress from piping). Ensures the fitting maintains sealing performance under bending stresses from piping caused by vehicle vibration, thermal expansion and contraction, or accidental impact, preventing leakage from fatigue fracture or seal failure.
Continuous Operation Simulates the fitting's durability and ability to maintain sealing performance under long-term rated working pressure and temperature cycling. Evaluates the fitting's resistance to fatigue and creep over the vehicle’s lifecycle under repeated pressure and temperature changes, ensuring long-term safe and reliable performance.
Vibration Resistance Validates the fitting's ability to maintain its connection and seal under simulated vehicle vibration conditions. Prevents loosening or fatigue caused by vibrations from engines, road surfaces, or compressors, ensuring sealing integrity under dynamic operating conditions.

 

Successfully passing tests in accordance with these two critical hydrogen energy standards not only provides authoritative recognition of the exceptional quality of FITOK 6D Series Tube Fittings but also highlights FITOK’s dedication to technological innovation and its active role in advancing the global energy transition. This achievement enables end-users in hydrogen-related industries to adopt FITOK products with greater confidence and speed, collectively driving the development of the hydrogen energy industry.

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