What are the main materials of fabric compensators?

To absorb or compensate thermal expansion, vibrations and misalignments, fabric compensators are installed in air, duct and flue gas piping systems. Taking into account the thermal, chemical, mechanical and fatigue resistance of the materials, our designers combine different materials to provide the best technical and economic solution. Conventional power plants use 801 series coal, oil and gas turbine systems. Fabric compensators are also known as non-metallic compensators. The main materials are fabric, rubber and high temperature resistant materials. It can offset fan vibration, duct operation and duct deformation. Advantages of fabric compensator series: at the same time, compensation for multi-directional movement, almost no reaction force, small space required for installation, easy to adapt to existing physical conditions, easy to transport. Minimal heat loss due to good insulation, cold outer layer during operation, protection of site employees, mature technology. Choice of fabric compensator material: fabric compensator is also expressed in nominal diameter. Seamless tubes used in engineering, such as fabric compensator seamless steel tubes for petroleum cracking, high pressure seamless steel tubes for fertilizer equipment, fabric compensator marking method is not nominal diameter, but diameter multiplied by thickness. The outer diameter and thickness are nominal outer diameter and nominal thickness. Fabric compensator and general purpose fabric compensator two kinds. Outside diameter 200mm; hot rolled pipe outside diameter of 630mm. in pipeline engineering, pipe diameter more than 57mm hot rolled pipe commonly used. Pipe diameter in 57mm fabric compensator is often selected within. The nominal diameter of certain parts such as flanges, supports, etc., is the nominal diameter of the cylinder with which the fabric compensator is matched.
The nominal diameter of certain fabric compensator components indicates the nominal diameter of the pipe with which it is matched. For example, the pipe flange, DN200 pipe flange refers to the connection DN200mm pipe flange. There are also some vessel components, the nominal diameter of which refers to an important dimension in the structure, such as the peephole of the sight glass, the shaft diameter of the stuffing box, etc. DN80 sight glass, the diameter of its peephole is 80mm. the connection between the fabric compensator and the cylinder has a significant abrupt change in shape, which will produce a large additional bending stress, so it is only used for smaller diameter and lower pressure vessels. When using the fabric compensator, the spherical radius of the fabric compensator must not be larger than the diameter of the cylinder. The stress of the fabric compensator is only due to the flat cap and is only used when the production process of the vessel is really needed. The half cone angle of the fabric compensator shall not be greater than 30 °. Half cone angle greater than 30 ° should be used with folded edge fabric compensator, and require the folded edge transition area of the corner radius is not less than 10% of the cylinder diameter, and not less than three times the thickness of the cone.