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Products · Metal fittings

Metal Fittings

Metal fittings are heavy-duty connecting elements for the secure, leak-free integration of pneumatic and compressed-air lines in industry. As a German manufacturer, eba pneumatic supplies precisely finished brass fittings that come as standard with an integrated kink protection spring for maximum service life.

Nickel-plated brass Kink protection spring as standard NW 5 · NW 8
Versions

Versions, advantages and areas of application

Our range made of nickel-plated brass offers reliable protection against mechanical damage and kinking of the hoses at tight bending radii or during dynamic movements. The range comprises rigid and 360° swivel cylindrical fittings, space-saving 90° angled fittings, union nuts as well as robust coupling plugs and coupling sockets in the nominal sizes NW 5 and NW 8. Thanks to the high-quality surface finish, the fittings withstand high pressures, mechanical stress and corrosive ambient conditions and are ideally suited to demanding use in mechanical engineering, automation and workshop installations.

Programme overview: metal fittings with kink protection spring

Robust metal fittings for connecting compressed-air and pneumatic lines. All variants come standard with integrated kink protection spring to safeguard the line against damage during unfavorable installation.

  • Union nuts Standard fitting
  • Cylindrical fittings - rigid Fixed line connections
  • Cylindrical fittings - swivel Flexible orientation
  • 90° angled fittings - swivel Space-saving for direction changes
  • Coupling plugs - rigid NW 5 · NW 8
  • Coupling sockets - rigid NW 5 · NW 8
Detailed dimensions, materials and order numbers can be found in the product catalogue.
Open catalogue

Product catalogue 2026: German

PDF · 8.8 MB · 172 pages · all dimensions & item numbers
Download

Product catalogue 2026: English

PDF · 8.8 MB · 172 pages · all dimensions & item numbers
Download

Special Sizes or Designs?

We also manufacture custom fittings according to your specifications.

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FAQ

Frequently asked questions about brass fittings

What are the advantages of a fitting with an integrated kink protection spring?
The kink protection spring supports the connected plastic hose directly at the transition to the fitting. This effectively prevents the hose from kinking or its cross-section from narrowing at tight radii or under constant movement, which ensures a continuous flow of compressed air and considerably extends the service life of the hose line.
When do you choose a swivel fitting instead of a rigid one?
Swivel fittings have an integrated swivel joint that allows the hose outlet to be aligned even after the thread has been tightened. This prevents the hose from twisting (torsion) during installation and in operation and noticeably simplifies line routing in confined spaces or on moving plant components.
Which nominal sizes and connections are available from eba pneumatic?
Our metal fittings are designed as standard for the common nominal sizes NW 5 and NW 8 and are equipped with precise parallel threads and matching union nuts. We also offer compatible quick-release couplings (coupling plugs and coupling sockets) for fast tool and line changes.