The double flange limiting expansion joint is composed of main components such as the body, sealing ring, pressure cover, and extension/retraction pipe. It adds a limiting device to the existing performance of the loose sleeve expansion joint, using double nuts to lock at the maximum expansion point. The pipeline can freely expand and contract within the allowable expansion range, but once it exceeds the maximum expansion, it acts as a limit, ensuring the safe operation of the pipeline. It is particularly suitable for connections in pipelines with vibration or certain slopes and bends.
The advantages of the expansion joints are: large expansion range and easy and quick installation.
Features: Suitable for pipes with flange connections at both ends.
Operation Principle: After the loose-type expansion joint is installed on the pipeline, the nut and elastic sealing ring are tightened. Under the action of the nut cover, it is pressed tightly against the outer circumference of the pipe for sealing and connection due to the mutual obliquity. When the temperature changes, the pipe can freely expand and contract in the joint. In case of ground settlement, the pipe can tilt, ensuring a leak-proof seal, thereby achieving automatic compensation.