Corrugated pipes mainly include metal corrugated pipes, corrugated expansion joints, corrugated heat exchange tubes, diaphragms and bellows, and metal hoses. Metal corrugated pipes are mainly used to compensate for thermal deformation of pipelines, reduce vibration, and absorb settlement deformation of pipelines, and are widely applied in petrochemical, instrumentation, aerospace, chemical, power, water conservancy, metallurgy and other industries. Corrugated pipes made of plastic and other materials play an irreplaceable role in medium transportation, power threading, machine tools, household appliances and other fields.
Corrugated pipe: A pressure-sensitive elastic element in pressure measuring instruments. It is a cylindrical thin-walled folded shell with multiple transverse corrugations. The corrugated pipe has elasticity and can produce displacement under the action of pressure, axial force, transverse force or bending moment. Corrugated pipes are widely used in instruments and meters, and their main purpose is to serve as measuring elements of pressure measuring instruments, converting pressure into displacement or force. With a thin wall and high sensitivity, the measuring range of corrugated pipes is from tens of Pascals to tens of megapascals. In addition, corrugated pipes can also be used as sealing and isolating elements to separate two media or prevent harmful fluids from entering the measuring part of the equipment. They can also be used as compensation elements, utilizing their volume variability to compensate for temperature errors of instruments. Sometimes they are also used as elastic connection joints for two parts. According to the constituent materials, corrugated pipes can be divided into metal corrugated pipes and non-metallic corrugated pipes; according to the structure, they can be divided into single-layer and multi-layer types. Single-layer corrugated pipes are more widely used. Multi-layer corrugated pipes have high strength, good durability and low stress, and are used in important measurements. The materials of corrugated pipes are generally bronze, brass, stainless steel, Monel alloy, Inconel alloy, etc.
