Welded bellows

Our bellows

Our bellows

Edge welded bellows, or diaphragm welded bellows, are flexible connecting elements between vacuum flanges or end fittings of any kind. A video you can find below presents assembly between two UHV chambers.

One-off manufacture upon customer request, cleaning and leak test as UHV procedure, cleanroom packaging.

Welded bellows are available in KF, ISO and CF flanges, or end fittings according to the customer's drawing.


  • Vibration isolation
  • Actuator
  • Volume compensator
  • Expansion joint


  • Material: SS 316L, SS AM350, ...
  • Servide temperature: -250/450°C (316L), -250/300°C  (AM350)
  • Leak rate: <1.10-10 mbar.l/s

To help you about an inquiry, please download our pdf inquiries template here : Fiche_renseignement_WB





If you want an offer, or for more information about this product: Contact us

Can not find the desired product? Contact us

30 avenue de la Paix
92170 VANVES
Tel:+33(0)1 41 90 50 50
Fax:+33(0)1 41 90 50 51
e-mail: contact[@]neyco.fr