1. Applicable Medium: Air, flue gas, and dusty gases.

2. Pressure (P): -20~30 kPa

3. Operating Temperature (t): Refer to the above-set working temperature, ≤450°C.

4. Compensation Quantity: Xo represents the axial compensation quantity, with a negative sign indicating compression deformation; Yo represents the lateral compensation quantity. The specific compensation quantities are as specified in the table above.

5. Material

a. Metal structural components are typically recommended for materials with a temperature rating of t≤400°C, using Q235-A; for temperatures up to 450°C (t≤450°C), materials 10 or Q345 (16Mn) should be used. Other materials should be considered as part of the design.

b. The compensator is composed of non-metallic ring materials and a gasket layer, utilizing various materials such as glass fiber cloth, polytetrafluoroethylene film, composite rubber glass fiber cloth, and aluminum silicate fiber cotton, depending on the working temperature. Asbestos-containing materials are not permitted for the manufacturing of non-metallic compensators.

6. Connection Method: Standard is socket welding, where the pipe is inserted into the compensator's interface with a 20mm insertion depth. Flange connection is also available, in which case, the product length and compensation are the same as for socket-welded pipes. Compensators are categorized into metallic and non-metallic types. The elastic elements that make up the compensator's working body are non-metallic, typically fibrous fabrics, hence also known as fabric compensators (expansion joints, flexible joints). There is also rubber material, which can replace fibrous fabrics in all other operating conditions except when high temperatures (above 400°C) are involved.