High Pressure Single Sphere EPDM Joint

Single Ball Rubber Expansion Joint: With unique structural characteristics, it strengthens the safety defense line of the pipeline system
In the complex pipeline network, the Single Sphere Rubber Expansion Joint, with its unique structural design and performance advantages, has become the core component to ensure the stable operation of the system. It can not only solve the problems of pipeline vibration and noise, but also adapt to a diverse medium environment In coordination with accessories such as Bellow Expansion Joint, Flexible Metal Hose, Dismantling Joint , Flange Adaptor , Duckbill Check Valve, etc. Build a safe and reliable operational barrier for all kinds of pipeline systems. ​

"Expert in Resolving Vibration and Displacement
One of the core values of Rubber Expansion Joint lies in the precise control of pipeline vibration and displacement. It can significantly reduce the vibration and noise of the pipeline system and fundamentally solve the problems of interface displacement, axial Expansion and misalignment of various pipelines. This "flexible buffering" capacity complements the axial compensation function of the Bellow Expansion Joint. In the outlet pipes of equipment such as water pumps and fans, Rubber Expansion Joints absorb high-frequency vibrations, and Bellow Expansion Joints compensate for the axial displacement caused by thermal expansion and contraction. The two are precisely connected through Flange adaptors to comprehensively cope with the dynamic stress during pipeline operation. ​

For the complex displacement situations in pipeline layout, the flexibility of Rubber Expansion Joint is irreplaceable. It can adapt to multi-angle misalignment connections. Combined with the Flexible characteristics of the Flexible Metal Hose , it can easily solve the connection problems of pipes in narrow Spaces or with complex directions. In municipal pipeline networks, when pipelines undergo slight displacement due to foundation settlement, rubber expansion joints are used in conjunction with Dismantling joints. The former resolves displacement stress, while the latter facilitates later maintenance and adjustment, ensuring that the pipeline network remains in a stable state at all times. ​

"Master of Adaptation for Multiple Media"
The material diversity of Rubber Expansion Joint enables it to handle the challenges of different medium environments with ease. Depending on the material differences, it can be made into special models such as acid-resistant, alkali-resistant, corrosion-resistant, oil-resistant, and high-temperature resistant, to meet the medium transportation requirements of multiple fields including chemical engineering, petroleum, and thermal power. This "tailor-made" feature is consistent with the material selection logic of Duckbill Check Valve 's seals. For example, in acid and alkali chemical pipelines, corrosion-resistant rubber expansion joints and fluororubber seals of Duckbill Check Valve can work together to resist the erosion of the medium. In the oil pipeline, the oil-resistant rubber expansion joint and the oil-resistant coating of the Flexible Metal Hose form a "double protection" to ensure the safety of oil transportation. ​

The polar Rubber material endows the Rubber Expansion Joint with excellent sealing performance. Combined with the lightweight structural design, it makes installation and maintenance extremely convenient and significantly extends its service life. However, it is necessary to avoid contact with sharp Metal instruments to prevent the sphere from being puncturing - this maintenance point is the same as the mechanical damage prevention requirement of the Flexible Metal Hose, and both need to extend the service life through standardized operation. In food and pharmaceutical pipelines, the sealing performance of food-grade rubber expansion joints, in combination with the smooth inner wall design of the Flange Adaptor, can meet strict hygiene standards. ​

"Detail control" of installation standards
The installation details of Rubber Expansion Joint directly affect its performance. Scientific and standardized installation is the key to ensuring efficiency. When overhead installation is adopted, elastic supports need to be equipped. This installation method is similar to the overhead fixation requirements of Bellow Expansion Joint, both aiming to reduce the additional stress on flexible components caused by the self-weight of the pipeline. During the installation process, the bolts need to be tightened diagonally and evenly to ensure the force balance of the Flange. This is completely synchronized with the flange connection specification of the Flange Adaptor and can effectively prevent local leakage. ​

When facing excessively high pipeline pressure, the Rubber Expansion Joint needs to connect the flanges at both ends through limit bolts. This "pressure control" design can prevent excessive stretching or compression, which is consistent with the function of the limit device of the Bellow Expansion Joint in high-pressure pipelines. The flange connection standard of the product adopts GB4216.3-4216.5, and the working pressure grades cover 0.6MPa, 1MPa, 1.6MPa, and 2.5MPa. Precise selection can be made based on the system pressure. For example, in an industrial circulating water pipeline with a pressure of 1.6MPa, Selecting rubber expansion joints of the corresponding pressure grade in combination with Flange adaptors can ensure safe operation under the design pressure. ​

The "efficiency multiplication" of system collaboration
In a complete piping system, the synergy of Rubber Expansion joints with various fittings maximizes efficiency. When used in conjunction with Dismantling Joint, rapid disassembly and maintenance of pipelines can be achieved. Especially in chemical pipelines that require regular inspection and repair, the combination of the two significantly improves operation and maintenance efficiency. When installed in series with the Duckbill Check Valve, the rubber expansion joint absorbs the impact and vibration of water flow, and the check valve prevents the backflow of the medium. The sealing connection of the two in combination with the Flange Adaptor forms a dual guarantee of "shock absorption + backflow prevention" in the drainage pipe. ​

In the high-pressure pipeline system, the limit bolts of Rubber Expansion Joint complement the pressure compensation function of Bellow Expansion Joint. The former controls the radial displacement, while the latter undertakes the axial compensation, jointly coping with the pipeline stress in the high-pressure environment. In the equipment pipeline with intense vibration, rubber expansion joints and Flexible Metal Hose work together. The former weakens high-frequency vibration, and the latter buffers low-frequency impact. Then, through the convenient maintenance feature of Dismantling Joint, a safe and efficient pipeline connection system is constructed. ​

From vibration resolution to medium adaptation, from installation specifications to system coordination, Rubber Expansion Joint plays an irreplaceable role in pipeline systems with its unique structural characteristics. It complements the advantages of Flexible components such as Bellow Expansion Joint and Flexible Metal Hose. With the assistance of Dismantling Joint, Flange Adaptor and Duckbill Check Valve, With precise displacement compensation, reliable sealing performance and diverse medium adaptation capabilities, it safeguards the safe and stable operation of various pipeline systems and becomes the core force in enhancing the reliability of pipeline systems. ​