Welded bellows have specific advantages, including:

• 1.Higher strength with the ability to withstand greater pressures
• 2.Wider operating temperature range
• 3.Ability to be given precise design characteristics
• 4.Lower spring rate (the amount of force required to compress it a given distance)
• 5.Lower stress in critical areas
• 6.Welded bellows allow for the use of optimal plate shapes such as the Nesting Ripple design
• 7.Static secondary seals
• 8.Only one moving part. . . the bellows
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If you've discerned that an edge-welded metal bellows seal is optimal for your application, consider that not all seals are created equal. Differentiating bellows features-the plate shape and thickness, vibration attributes, the impact of double-ply, face angle and more-all impact the effectiveness of the welded metal bellows seal. Operators should understand these differences in order to pick the most effective product for their application as well as extend mean-time between repair, standardize inventory, increase reliability and improve fugitive emission control and water conservation.