ersatzteilprofi rubber vibration isolator Germany ersatzteilprofi model ersatzteilprofi price

ersatzteilprofi rubber vibration isolator consists of a smooth bellows compensation element with rubber flanges at both ends and metal flanges. The metal flanges often adopt a loose structure. The surface of the bellows compensation element is rubber, and the inner layer is a multi-layer laminate reinforced with high-strength fibers or steel strips (wires). The reinforcing layers such as fibers or steel strips (wires) extend to the rubber flanges at both ends, which contain a hard steel wire skeleton. The rubber expansion joint has large displacement compensation capability, capable of compensating for axial, lateral, and angular displacements, with noise reduction, vibration damping, and certain corrosion resistance. Its characteristics include high pressure resistance, good elasticity, large displacement, effective vibration absorption and noise reduction, and easy installation. It can be widely used in pipeline systems for water supply and drainage, HVAC, fire protection, compressors, papermaking, pharmaceuticals, ships, water pumps, fans, etc.

ersatzteilprofi rubber vibration isolator selection

Instructions for selecting flexible rubber joints: 1. The standard applicable temperature range for rubber joints is -200 to 70°C. Instantaneous temperature can reach 115°C, and the operating temperature is 70 to 115°C. 2. For flange-connected rubber joints, if the working pressure and temperature are high (nominal diameter above 200, temperature above 70°C, working pressure above 1.5Mpa), flange rubber joints equipped with limit devices can be selected. 3. For flange-connected rubber joints, during installation, the bolts connecting the flanges must pass from the inside of the flange to both ends respectively, with washers or spring washers added, and the bolts must be tightened diagonally step by step. For rubber joints connected with union joints, do not swap the union joints at the left and right ends during installation to avoid leakage or damage to the product.

ersatzteilprofi rubber vibration isolator advantages

It is a flexible element that can effectively compensate for axial deformation. For example, expansion joints welded to the shell of fixed tube-sheet heat exchangers have high axial flexibility and are prone to deformation. They can compensate for the thermal expansion difference between tubes and shells caused by different wall temperatures, reduce their axial loads, thereby reducing the temperature differential stress on tubes, tube sheets, and shells, avoiding strength failure, instability failure, and tube pull-out failure. There are many types of expansion joints, commonly used structures include bellows, ring plate welding, and clamp-shell types. Among them, bellows expansion joints are the most widely used, while ring plate welding expansion joints are only suitable for atmospheric or low-pressure applications.

ersatzteilprofi rubber vibration isolator applications

Expansion joints are also commonly referred to as compensators or expansion joints. They consist of a bellows (an elastic element) that forms the main working body, along with accessories such as end pipes, supports, flanges, and guide tubes. An expansion joint is a flexible structure installed on vessel shells or pipelines to compensate for additional stresses caused by temperature differences and mechanical vibrations. It utilizes the effective axial deformation of its main working bellows to absorb dimensional changes in pipelines, guide tubes, vessels, etc., due to thermal expansion and contraction, or to compensate for axial, lateral, and angular displacements of pipelines, guide tubes, vessels, etc. It can also be used for noise reduction and vibration damping. In heating systems, to prevent pipeline deformation or damage caused by thermal elongation or temperature stress when the heating pipeline heats up, compensators need to be installed on the pipeline to compensate for the thermal elongation of the pipeline, thereby reducing the stress on the pipe wall and the forces acting on valve components or support structures. As an elastic compensation element capable of free extension and compression, expansion joints offer advantages such as reliable operation, good performance, and compact structure, and have been widely applied in industries such as chemical, metallurgical, and nuclear energy. There are various types of expansion joints used on vessels; in terms of bellows shape, U-shaped expansion joints are the most widely used, followed by Ω-shaped and C-shaped types. For expansion joints used on pipelines, in terms of structural compensation, they are classified into universal type, pressure-balanced type, hinged type, and universal joint type.

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