IIB+H2 hydrogen enclosures
Hydrogen is one of the easiest gases to ignite. It belongs to the most severe group, IIC. An enclosure marked IIB+H2 is suitable for group IIB gases and for hydrogen, without requiring full IIC certification.
Our hydrogen enclosures
- CAS IIB+H2 (CAS-A to CAS-H) in aluminium alloy or 316L stainless steel, certificates INERIS 16 ATEX 0049X and IECEx INE 16.0059X. Cathodic protection version available.
- EJB IIB+H2 in aluminium alloy or 316L stainless steel, ambient temperature down to −60 °C / up to +80 °C, optional UL, EAC, INMETRO and ECAS certificates.
- EJC IIC and DAS / CAS 140 IIC when acetylene or other IIC gases are present.
Applications
Electrolysers, hydrogen refuelling stations, storage and compression, fuel cells, battery rooms, chemical processes.
Good to know
IIC equipment is also suitable for groups IIB and IIA. IIB+H2 equipment is not suitable for acetylene or carbon disulphide. Understanding gas groups