The most important feature of FLEXPERT Metal Bellows Expansion joints is the multi-ply/multi-wall laminated bellows structure of the metal bellows elements. The metal bellows are manufactured from multi-wall laminated tube of plies ranging in number from 2 to 20 depending up on diameter and specified operating pressure and other design parameters.
Each of the thin layer acts as a nearly neutral fiber which offer significantly lower resistance to movements in the piping system than a single wall metal bellows. Significantly less force is required for actuating the laminated bellows.
Thus with the same dimensions FLEXPERT multi-wall bellows can accept significantly more movements with ease. The stresses induced on the individual layers of FLEXPERT multi-wall bellows are a fraction of the stresses induced in the single wall bellows of equal thickness. This results in highest possible service life of the FLEXPERT laminated bellows.
We design and manufacture single as well as multi-ply metal bellows.The bellows is the basic element of an expansion joint and the following characteristics are given special attention during the bellows design process.