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Bellows Expansion Joint

Bellows Expansion Joint
Bellows Expansion Joint
Bellows Expansion Joint
Bellows Expansion Joint
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VZM Bellows Expansion Joints are designed with several individual thicknesses or laminations of precision stainless steel foil. This design procedure combines the high flexibility of thin material while providing the pressure resistance of multiple laminations.
As a comparison, a bellow made from four plies of 0.008" thick material has the same pressure rating as a single thickness of 0.016" thick, but the laminated construction will deflect twice as much and requires only one-half the force to compress. The laminated design and low effective area assure that minimum loads are transferred to adjacent piping, and provide extended life at full stroke.

Specifications:
  • Nominal diameter: DN25 – DN1000 mm (from 1” to 40”)
  • Wide range of travel, pressures, temperatures
  • Maximum flexibility and extended life
  • Low spring rates and pressure thrust

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