Structural composition

Flange: The flange is the main body used to connect pipelines. Mainly composed of high-strength materials, ensuring stability during connection.

Expansion joint: Provides flexibility to adapt to the thermal expansion, contraction, and displacement changes of pipelines.

Seals: Ensure the sealing of the pipeline system to prevent medium leakage.

Fasteners: including bolts and nuts, used to tightly connect flanges.

Usage scenario:

1. Basic engineering such as chemical construction: Flange type loose sleeve expansion joints can adapt to temperature changes and foundation settlement, ensuring the stable operation of pipeline systems.

2. Long distance water pipeline: The flange type loose sleeve expansion joint can absorb the expansion and contraction of the pipeline caused by temperature changes and medium flow, ensuring the safe operation of the pipeline.

3. Heating pipeline network: The flange type loose sleeve expansion joint can compensate for the displacement of the pipeline caused by temperature changes and prevent pipeline damage caused by thermal expansion and contraction. ‌

Installation and maintenance methods

Preparation before installation: Clean the pipeline system to ensure that there are no debris or dirt inside the pipeline, and that the flange surface is smooth, flat, and undamaged.

Installation steps: Place the flange type loose sleeve expansion joint between the pipes that need to be connected, adjust the length of the expansion joint to adapt to the displacement changes of the pipeline system. Then use bolts to tightly connect the flange, ensuring the stability and sealing of the joint.

Maintenance: Regularly inspect and maintain the flange type loose sleeve expansion joint to ensure that it is in good working condition. If leakage, looseness or other abnormal conditions are found in the joint, timely handling and maintenance should be carried out.‌