Abstract: The invention relates to an expansion joint (1) for joining two adjacent parts of a pipe. The expansion joint (1) comprises an expansion bellows (5), an expanded wall (2) and an inner sleeve assembly (8). The expanded wall (2) comprises a first wall part (3) and a second wall part (4), wherein the first wall part (3) and the second wall part (4) are spaced apart from each other axially by an axial gap. The expansion bellows (5) is connected to the first wall part (3) and to the second wall part (4) such that the axial gap between the first wall part (3) and the second wall part (4) is closed and such that the first wall part (3) and the second wall part (4) are connected flexibly. The expanded wall (2) and the inner sleeve assembly (8) limit at least one sealed chamber (9, 10) between each other, and the at least one sealed chamber (9, 10) is filled by a first gas.

Abstract: The invention relates to an expansion joint (1) for joining two adjacent parts of a pipe. The expansion joint (1) comprises an expansion bellows (5), an expanded wall (2) and an inner sleeve assembly (8). The expanded wall (2) comprises a first wall part (3) and a second wall part (4), wherein the first wall part (3) and the second wall part (4) are spaced apart from each other axially by an axial gap. The expansion bellows (5) is connected to the first wall part (3) and to the second wall part (4) such that the axial gap between the first wall part (3) and the second wall part (4) is closed and such that the first wall part (3) and the second wall part (4) are connected flexibly. The expanded wall (2) and the inner sleeve assembly (8) limit at least one sealed chamber (9, 10) between each other, and the at least one sealed chamber (9, 10) is filled by a first gas.

Abstract: A pulsation damping capsule including at least one hermetically joint-sealed metal membrane housing made of at least two preferably concave hemispheres, the housing being provided for separating an inner space from a surrounding pressure medium, wherein the hemispheres are connected together along a peripheral seam firmly bonded such that the pulsation damping capsule can be compressed and expanded as an energy accumulator with spring elasticity due to the effect of the pressure medium. A pulsation damping device is provided which is both dimensioned to withstand stresses and is simple to produce, the pulsation damping effect of which can be tailored especially easily to the existing conditions. Further disclosed is a pulsation damping module for housing a plurality of pulsation damping capsules.

Abstract: A pulsation damping capsule including at least one hermetically joint-sealed metal membrane housing made of at least two preferably concave hemispheres, the housing being provided for separating an inner space from a surrounding pressure medium, wherein the hemispheres are connected together along a peripheral seam firmly bonded such that the pulsation damping capsule can be compressed and expanded as an energy accumulator with spring elasticity due to the effect of the pressure medium. A pulsation damping device is provided which is both dimensioned to withstand stresses and is simple to produce, the pulsation damping effect of which can be tailored especially easily to the existing conditions. Further disclosed is a pulsation damping module for housing a plurality of pulsation damping capsules.