Hydrogen-Powered Vehicle (70 MPa high-pressure FCVs, EC79 Approval)

10/10/2019
3516
FITOK 20D Series Double Ferrule Tube Fittings EC-79 Certified, up to 20000 psi (1379 bar)

For decades, Hydrogen has been safely used in a variety of applications, such as petroleum refining, glass purification, semiconductor manufacturing, fertilizer production, aerospace applications, as a cooler for powerplant generators, etc.
 
New applications for Hydrogen are emerging, such as using it as an alternative fuel. Recently, more and more auto manufacturers are developing fuel cell vehicles (FCVs) powered by hydrogen gas. Types of FCVs include industrial trucks (35MPa) and passenger cars (70MPa). These vehicles create new technological challenges for high pressure gas system designers. Small-molecule gases are more difficult to seal than liquids. How fittings and tubing are handled during installation makes a difference in sealing performance.
 
FITOK 20D Series Double Ferrule Type Tube Fittings are designed and manufactured to be secure and gas-tight. They can be installed by wrench turns or pre-assembled by presetting tools (manual/hydraulic). Their mechanical grip design allows for easy installation and ensures that no torque is transmitted to the tubing during installation.

 
Installation Comparison
 
 
Coned and Threaded Fittings
FITOK 20D Series Tube Fittings (formerly known as DHL Series)
Schematic
Assembly
Preparation
  ① Coning Tools
  ② Threading Tools
  ③ Reseating Tools
  ④ Cutting Oil
① Wrench
(O.D. 1/8”, 1/4”, 3/8” and 1/2”)
Assembly Process
  Coning, threading and special cleanin
1 ¼ turn easy assembly operation, experienced a 70-80%
reduction of assembly work compared to cone and thread
After Assembly
  Difficult to clean the residual cutting oil in the fitting
  body and tubing
Ready to use!

FITOK is continuously expanding its product certifications to EC-79 standards (view the Approval Certificate for 6 Series and 20D Series Tube Fittings) for use in hydrogen applications, with respect to the test program below:
 
(EU) No 406/2010
ANNEX IV PART 3#
Test Procedures
4.1.1
Hydrogen compatibility test
4.2.1
Corrosion resistance test
4.2.2
Endurance test
4.2.3
Hydraulic pressure cycle test
4.2.5
External leakage test

Please contact us directly online or contact your nearest authorized distributor for more details!
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