Bellows are used to isolate vibration from one end of the bellows to the other while sealing hermetically. With custom mounting and sizing available, edge welded bellows create an all-metal conduit to minimize or eliminate the effects of vibration from one point in a system to another. Edge welded bellows technology allows for high pressure and temperature applications.

Bellows DD Form12-21B

Specifications – Vibration Dampener – PDF

Common Materials 347, AM 350 and 316L SS
Thickness 0.002″ and up every 0.001″
Standard Leak Rate <1×10-9 std CC He/sec
Size Ranges
Outside Diameter 0.358″ (9.0932mm) to 22.205″ (564mm)*
Inside Diameter 0.198″ (5.029mm) to 19.921″ (505.99mm)*
Shapes Round standard. Non-Round Available; Contact Factory.
Length Up to 96 inches (244 cm)

*For other dimensional requirements, contact the factory


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