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Integral Universal
This unique bellows is used for low-pressure applications that require lateral movement. The center spool requires no welding and uses dimples to maintain rigidity. Standard universal construction must be used if flow liners are required.
Single ply or multi-ply bellows can be shipped with vanstone stub ends sized and fitted to the necks, but not welded. The customer can insert his own floating flanges then reassemble and weld....
When a flow liner is required, DME can furnish one fit directly to the bellows neck. This eliminates the need for a separate liner attachment weld....
Bands are used to reinforce the bellows necks due to pressure considerations or to make welding easier. The internal or external bands are expanded with the bellows neck to size. The customer welds the band and neck to their fittings. ...
For ease of fabrication, the layers of material on multi-ply bellows can be resistance welded together at the necks. ...
Applications for very high pressures may require the valley and sidewall of the convolution to be supported. One method is the use of external reinforcing "Root Rings"....
