What is the double-flange limit expander fittings?

The main function of double-flange limit expander is to eliminate thermal deformation caused by thermal displacement of pipeline, prevent abnormal deflection caused by thermal expansion and contraction of pipeline to produce axial or lateral displacement of pipeline; prevent displacement caused by vibration and temperature change of pipeline; absorb the stress caused by thermal displacement of pipeline. The corrugated compensator of double flange limit expander has reasonable structure design, high manufacturing accuracy, reliable work, long service life, easy installation and maintenance; double flange limit expander is suitable for pipelines carrying liquids and gases, steam, oil and water and other media.
When the need for compensation is very large, can choose fixed type or activity type double flange limit expander for the installation of a large amount of expansion on the pipeline, it is appropriate to use the activity type double flange limit expander; when the need for compensation is small (such as elbow, it is appropriate to use the activity type double flange limit expander; when the need for compensation is large and can choose fixed type double flange limit expander; compensation amount is small it is appropriate to use the activity type double flange limit expander The fixed double flange limit expander (including fixed on the pipeline can be moved in any position) should be sliding type expander (thermal expansion is about 2 times to 3 times of the fixed type expander); sliding type expander (thermal sliding type) should not be fixed on the end of the metal compensator. Fixed type double flange limit expander can be fixed on the pipeline with flange alone. It has good effect on the pipeline connected with the end of the compensator.
One of the important supporting products of double flange limit expander. It is also a new type of compensator which is widely used in various installation pipelines with large compensation volume and wide range of use in China. The compensation volume is small, the installation temperature requirements are not high, can choose the activity type expansion compensator its characteristics: simple structure, small volume, easy installation and maintenance, long service life, corrosion resistance. Easy to install, wide range of applications, has been widely used in a variety of pipelines, and has been successfully applied in petrochemical, paper, pharmaceutical, electric power, thermal and other industrial fields. It is widely used in steam, heating and various cold air conditioning pipelines, and is widely used on various pipelines.