The compensator adopts rectangular section, circular corner waveform, and a single expansion joint in the pipeline bears two-dimensional directional displacement. The elbow joint pipe of spherical compensator consisting of two expansion joints can withstand three-dimensional directional displacement. Rectangular fillet metal corrugated expansion joints have full height and half height, according to the size of flue, stress and strain require users to choose more corrugated joints.

1. After the user chooses the appropriate compensator according to the thermal displacement of the pipe system, at least the flow medium in the pipe, the design pressure of the flue duct, the highest temperature in operation, the shape size (length and width) of the cross section of the flue duct, the waveform (216 mm in height, 108 mm in half height) and the wavenumber (single wavenumber does not exceed 6 wavenumbers) should be provided for the structure of the compensator. Design and manufacture.

2. Maximum allowable expansion per wave: full-height type alpha=+24 mm semi-high type alpha=+12 mm.

3. Dust shield: Dust shield should be used in dusty flue instead of duct or less dusty pipe.

4. In order to reduce the number of bellows, 50% cold drawing should be considered.

5. The compensator is suitable for situations where the cross-section area is less than 4.6 square meters and one side of the flue duct is less than 1.5 mm but larger than 0.6 mm. Standard full height corrugated compensator is suitable for all flue ducts.