Edge Welded Metal Bellow Products

BellowsTech metal bellows provide the most flexibility in the smallest amount of space of any bellows technology on the market

Our welded metal bellows are engineered to allow for maximum flexibility in axial, angular and parallel offset motion. They provide a hermetic, all metal pressure barrier and seal that flexes in one or more directions.

Our bellows feature:

  • Wide variety of different stock materials including 300 series Stainless Steel, Titanium, Inconel, AM 350 plus more
  • Lifetime resistance to corrosive or harsh environments
  • High temperature endurance
  • Excellent media compatibility
  • Ultra rugged construction for maximum durability
  • Up to 90% stroke length
  • Standard or custom one piece designs
  • End pieces optional

To achieve optimum movement in vacuum and positive pressure environments we manufacture our bellows to the precise requirements specified by our customers in the Oil and Gas, Semiconductor and UHV industries where mechanical movement is the most frequent

Metal Bellows Specifications

Edge Welded Bellows
Minimum outside diameter 0.358″ (9.0932 mm)
Maximum outside diameter 26.5″ (673.1 mm)
Minimum inside diameter 0.2″ (5.08 mm)
Temperature -420 to 1500 F (-251 to 815 C)
Maximum pressure varies by application
Maximum stroke percentage of free length 90%

Design Your Own Metal Bellows

Do you have a special requirement? Do you need a special end piece or guide? Your custom bellows solution is just a click away.
Consult with one of our design engineers for a completely unique bellows that meets all of your pressure, temperature or movement specifications.

The Electrodeposited Bellows Alternative

Electroformed bellows by Servometer® offer the same enduring quality and performance as edge welded bellows but in miniature sizes and coating options for more challenging applications.
Learn more about the electrodeposition process and products (bellows, couplings, contacts and electroforms) Click here.

There are over 90 Standard Diaphragm sizes available.

View the entire die list here and quickly choose the best fitting bellows mechanical seal for your application