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Metal bellows

HYDRA® metal bellows have a high compressive strength, are heat-resistant and corrosion-resistant, leak-tight, torsionally rigid and have high flexibility for axial, lateral and/or angular deformation. Metal bellows are the preferred structural element whenever a combination of these properties is required; e.g.

  • As a pressure and heat-resistant seal for valve spindles in valves,
  • As vacuum switching bellows in power installations,
  • As a moving seal or media separator in pumps and pressure accumulators,
  • As a moving, pressure and heat-resistant sealing element in modern fuel injectors and glow plugs,
  • As a mechanical shaft coupling,
  • As a sealing spring element in slip ring seals or
  • As a leak-tight, strain-free leadthrough in container walls.

With proper design, HYDRA® metal bellows are sturdy, maintenance-free components with a high operational reliability and long service life.

We offer an extensive range of standard bellows and solutions tailored to special applications. Starting from individual applications, through small and medium-sized series right up to industrial-scale production parts, our engineers develop the technically and economically optimum bellows for your application and the corresponding production concept.

  • The Manual of Metal Bellows Technology ( view / order )