Pneumatic valves are also commonly called expansion joints, or expansion joints. The utility model is composed of a bellows (an elastic element) which constitutes the main body of the utility model, an end pipe, a bracket, a flange, a conduit and other accessories. It belongs to a compensation element. Use the effective expansion and deformation of the bellows of its working body to absorb the size changes of pipelines, conduits, containers, etc. caused by thermal expansion and cold contraction, or compensate the axial, transverse and angular displacement of pipelines, conduits, containers, etc. It can also be used for noise reduction and vibration reduction. It is widely used in modern industry.
In terms of heat supply, in order to prevent deformation or damage of the pipeline due to thermal elongation or temperature stress when the heating pipeline heats up, it is necessary to set pneumatic valves on the pipeline to compensate for the thermal elongation of the pipeline, so as to reduce the stress on the pipe wall and the force acting on the valve or support structure. Function 1. Compensate the axial, transverse and angular cold and hot deformation of the absorption pipe.
2. The expansion and contraction of the corrugated pneumatic valve is convenient for the installation and disassembly of the valve pipeline. 3. Absorb equipment vibration and reduce the impact of equipment vibration on pipeline.
4. Absorb the deformation of pipeline caused by earthquake and ground subsidence.