The specific role of plastic corrugated pipe in use
1. Compensate to absorb the axial, lateral and angular thermal deformation of the pipeline.
2. Absorb equipment vibration and reduce the impact of equipment vibration on pipelines.
3. Absorb the deformation of the pipeline caused by earthquakes and subsidence.
Bellows are widely used in instruments and meters, the main purpose is to be used as a measuring element of pressure measuring instruments to convert pressure into displacement or force. Bellows have thinner walls and higher sensitivity, and the measuring range is from tens of MPa to tens of MPa. Its open end is fixed, the sealed end is in a free state, and the auxiliary coil spring or reed is used to increase the elasticity.
Bellows are often combined with displacement sensors to form pressure sensors with electrical output, and are sometimes used as isolation elements. Because the expansion of the bellows requires a large volume change, its response speed is lower than that of the Bourdon tube. Bellows are suitable for measuring low pressure.