After installing the loose expansion joint on the pipeline, tighten the nut elastic sealing ring and cover it with the nut ..

After installing the loose sleeve expansion joint on the pipeline, tighten the nut elastic sealing ring, and under the action of the nut cover, tilt it against each other and press it tightly on the outer ring of the pipe to seal and connect. When the temperature changes, the pipe can freely expand and contract in the middle of the joint. When the foundation sinks, the pipe can deflect and ensure that there is no leakage in the seal, thus achieving the purpose of automatic compensation.