Schedule a Call Back
Bellows
Bellows
Flexican Bellows & Hoses offers Bellow. This is an inline pressure balance bellow. The principle of this type of unit is essentially the same as the pressure balanced bellow with elbow/tee section, in that the axial pressure thrust is reacted by the pressure acting on a cross-sectional area equal to the area of the working or primary bellows. Since this unit is entirely axial, and there is no directional change in the pipe, the cross-sectional area needed to balance the pressure is placed around the outside of the unit. Since the pressure force generated by the pressure acting on the annular surface between the primary and outer, or balancing bellows, the arrangement of the tie rods transfers and balances the pressure thrust created in the pipe on each end. This expansion joint is obviously more expensive than the simpler types; however, they may result in a lower overall system cost when the elimination of main anchoring is considered. This expansion joint can also be used to replace pipe loops, and its cost advantage may be seen in reduced pumping energy by the elimination of the loop"s elbow-generated pressure losses. This may also allow reducing the pipe size for the entire system.