In industrial pipeline systems, rubber expansion joints are a crucial component that not only connect the pipeline, but also absorb vibration, compensate for temperature changes, and play a critical role in the normal operation of the pipeline system.
This article will introduce the size, classification, pressure rating, and connection method of rubber expansion joints.
Size and classification
The size of rubber expansion joints is usually determined by parameters such as diameter, length, and expansion amount. According to its structural and functional characteristics, rubber expansion joints can be divided into the following main types:
- Single ball rubber expansion joint: A single ball rubber expansion joint has a spherical expansion body, which is usually used to absorb the vibration and displacement of pipelines in a single direction.
- Double ball rubber expansion joint: The double ball rubber expansion joint has two spherical expansion bodies, which can absorb the vibration and displacement of the pipeline in multiple directions and has a wider range of applications.
- Multi ball rubber expansion joint: The multi ball rubber expansion joint has multiple spherical expansion bodies, which can provide greater expansion and better vibration absorption effect and is suitable for pipeline systems under special working conditions.
Material
- EPDM
- NBR
- KXT
Pressure level
The pressure rating of rubber expansion joints depends on their structure, material, and design parameters. Generally speaking, the pressure level of rubber expansion joints can be divided into low pressure, medium pressure, and high-pressure levels. Low pressure rubber expansion joints are suitable for lower pressure pipeline systems, while medium pressure and high-pressure rubber expansion joints are suitable for higher pressure pipeline systems, such as pipeline systems in chemical, petroleum, natural gas, and other fields.
Connection method
The connection methods of rubber expansion joints usually include flange connection, threaded connection, and joint reinforcement connection. Among them, flange connection is the most common connection method, which is similar to pipeline flange connection. The flange of the rubber expansion joint is connected to the pipeline flange through bolts, forming a sealed connection. Screw connection is a simple and reliable method of connecting rubber expansion joints to pipelines through internal and external threads. Splicing connection is a relatively special connection method, suitable for situations with high requirements for vibration and impact in pipeline systems.
Rubber expansion joints, as important connectors in pipeline systems, have functions such as vibration absorption and temperature compensation, and play an important role in the industrial field. By understanding the size, classification, pressure rating, and connection method of rubber expansion joints, it is possible to better select and apply rubber expansion joints, ensuring the safe operation and stability of pipeline systems. With the continuous progress of industrial technology, it is believed that rubber expansion joints will have a wider range of applications and development in the field of pipeline connections.
Post time: Mar-29-2024
