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DIN Fittings | DIN Coupling Systems | Action Sealtite

DIN Fittings

What are DIN Couplings? 

DIN is a collective term for a group of European hose fittings from the German Industry Standard (Deutsches Institut für Normung). This product section includes Roman Seliger Couplings, Storz Couplings and Symetrique Guillemin fire hose adaptors and couplings.


Showing 81 products

B/C Spanner in Steel



Guillemin DN100 4" Male BSP with Locking Ring Aluminium



Guillemin DN100 4"Female BSP with Locking Ring in Aluminium



Guillemin Symmetrique DN100 4" Blank Cap Aluminium



Guillemin Symmetrique DN25 1" Blank Cap Aluminium



Showing 81 products

The Three Product Groups Within The DIN Fittings Range

  • Storz - German origin – Used in both firefighting and industrial applications
  • Guillemin Symetrique -  French Origin – also mainly used in firefighting and industrial environments
  • Roman Seliger - German Origin - A type of coupling more suited to chemical handling

How Does A DIN Fitting Work? 

Typically, these fittings are comprised of two halves which are identical and connect by twisting the two halves together. 


They are ideal for the transfer of liquid that requires high flow rates. A common application for the three groups of DIN fittings we supply into is firefighting equipment.

Technical Specifications

Please see the data sheets for the technical specifications for each of the three ranges of DIN fitting. 

The French and German standards vary slightly and so please speak to our technical team here on +44 (0)1235 512500 to ensure we can quote you for the appropriate fitting or click here to contact us.

DIN Couplings Data Sheets