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The advantages of axial external pressure type corrugated compensator and use
Axial external pressure type corrugated compensator, bellows expansion joint is also called the steam pipeline compensator, steam pipe expansion joint is mainly to absorb the axial displacement of a large amount of compensation and residual medium heat preservation performance is good, can be ruled out, etc.
Outside the axial pressure type corrugated compensator is mainly used in pipeline thermal deformation compensation, shock absorption, absorption pipeline settlement deformation, and so on, are widely used in petrochemical, instrumentation, aerospace, chemical industry, electric power, cement, metallurgy, etc.

The axial performance parameters of external pressure type corrugated compensator
stiffness
Axial pressure type corrugated compensator or other unit displacement required load produced by the elastic element value known as the rigidity of components, usually expressed as "K". If it is non-linear elastic properties of element stiffness is no longer a constant, but with the increase of load change.
Nominal rigidity
Known as the stiffness of elastic element design calculation is given when the nominal (or nominal) stiffness. It has error and element of the measured stiffness, especially the elastic element with nonlinear elastic properties. Represents the nominal stiffness curve on which a little stiffness, should consider carefully. Generally, nominal rigidity is best not to direct a design calculation values, but should use the prototype after the test, the revised ?
The stiffness of tolerances
To test the elastic element stiffness allow to a batch of dispersion scope. The same batch of elastic element, each element stiffness is not the same, there is a range. Component in order to ensure that the use of performance, we must have a limited scope of the stiffness of dispersed. For elastic sensitive element, its stiffness tolerance requirements defined within + / - 5% of the nominal value; General project with bellows type of elastic element, the stiffness allow general limit within + / - 50%.
The sensitivity
Axial pressure type corrugated compensator and other elastic element under unit load produced by a bit tiny amount is called the sensitivity of the element. Stiffness and sensitivity are the main functions of the corrugated pipe and other elastic element parameters, but they are the same with characteristics of two kinds of different representations. For not ?