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Clean, Safe & Versatile: Introduction to Hydrogen | Article Index | Blog - Weekly Column | Resources

Clean Safe Versatile Intro to Hydrogen

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Introduction to Hydrogen

Hydrogen is used in several industrial processes, and is a fundamental building block for the manufacturing of ammonia (fertilizers), methanol, and many polymers. In addition, it is used in the manufacturing of intermediate oil products in refineries, blended into natural gas, and used as an alternative fuel. 

Hydrogen applications can either be considered as Infrastructure (dispensers, storage cylinders, compressors, separators, and pressure control devices), or On-Vehicle Applications (light-duty, heavy-duty, rail, ship, and aerospace).


Where does Swagelok come in?

Aside from providing high quality products and services, Swagelok components meet both EC79 and HGV 3.1 transportation requirements. Beyond that, these components are certified to either H35, or H70 pressure classification. Specific testing is required to achieve this certification, including corrosion resistance, endurance, hydraulic pressure cycle testing, and external leakage testing.

What's the difference between EC-79 and HGV 3.1?

  • EC-79 is used to comply to the regulations set by the European Parliament and of the Council for hydrogen powered vehicles.
  • HGV 3.1 is used to comply to the regulations set by the The American National Standards Institute (ANSI) for hydrogen powered vehicles.

What's the difference between the H35 and H70 Classes?

  • The H35 Class is for pressures above 30 bar (435 psig) and up to 350 bar (5,076 psig)
  • The H70 Class is for pressures above 30 bar (435 psig) and up to 700 bar (10,159 psig)

View Swagelok’s Hydrogen-Compatible Product Catalog


Your Success is Our Success

Globally, Swagelok has worked with customers to build safe and reliable systems. Whether it's providing certified components, training, evaluation and advisory services, or Custom Solution services, our customers have found value beyond recognition.

View Customer Testimonials


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