Fabric expansion joints: Multi-functional protection experts for non-metallic flexible compensation
Fabric Expansion Joint, also known as fiber compensator or non-metallic expansion joint, is a compensating device composed of materials such as fiber fabric and rubber. It holds an important position in complex pipeline systems by virtue of its ability to absorb thermal expansion and contraction due to temperature differences in pipelines and its displacement compensation function.
Rubber Expansion Joint,
Bellow Expansion Joint,
Flexible Metal Hose,
Dismantling Joint,
Flange Adaptor,
Duckbill Check Valve and other accessories work in coordination to provide flexible protection solutions for various industrial pipeline systems.
Multi-directional compensation: The "Displacement Harmonizer" of Complex pipelines
The multi-directional compensation capability of the Fabric Expansion Joint is its core advantage. It can simultaneously compensate for multi-directional deformations such as axial, lateral and angular, perfectly adapting to the displacement requirements of complex pipeline systems. In pipelines with complex layouts such as boiler flue and air ducts, it can flexibly cope with multi-dimensional displacements caused by temperature changes in the pipelines, complementing the axial compensation function of Bellow Expansion Joint - the former resolves lateral and angular offsets, and the latter undertakes axial thermal expansion compensation. The two are precisely connected through a Flange Adaptor, completely eliminating the risk of thermal stress in the pipeline.
In the branch piping system of the chemical plant, the multi-directional compensation characteristics of fabric expansion joints correspond to the Flexible characteristics of the Flexible Metal Hose . It connects process pipelines of different directions, compensates for the displacement caused by equipment vibration and pipeline installation deviations, and when used in conjunction with Dismantling Joint, the pipeline position can be easily adjusted during later maintenance, significantly enhancing the flexibility and maintainability of the system.
Vibration reduction, noise reduction and no reaction force: The "Invisible Shield" for System stability
The fiber Fabric and insulation cotton materials of Fabric Expansion Joint have inherent sound absorption and vibration isolation properties, which can effectively reduce the vibration and noise generated by the operation of equipment such as boilers and fans. This advantage of vibration reduction and noise reduction complements the elastic shock absorption function of Rubber Expansion Joint. In the ventilation ducts of central air conditioning, fabric expansion joints absorb the vibration transmission of the fan, and
Rubber Expansion Joints buffer the high-frequency vibration of the water pump. The two are connected through Flange adaptors, jointly creating a low-noise indoor environment. Its noise reduction effect far exceeds that of a single compensation component.
The no-reaction feature is the "finishing touch" that simplifies the pipe design of fabric expansion joints. Fiber fabric materials do not transmit thrust. When in use, there is no need to design additional high-strength supports, which can significantly simplify the support structure and reduce installation costs. This advantage is particularly evident in large industrial pipelines. Compared with Bellow Expansion Joint, it can reduce the support input by more than 50% in long-distance hot air ducts. Combined with the lightweight feature of Dismantling Joint, it further improves the construction efficiency.
Weather resistance, corrosion resistance and easy installation: The "adaptable champion" in harsh environments
The special materials adopted by Fabric Expansion Joint have excellent corrosion resistance, high temperature resistance and low temperature resistance. It can work stably in extreme environments such as acid and alkali corrosion, high-temperature flue gas and low-temperature refrigerant. Its weather resistance characteristics are consistent with the material selection standards of corrosion-resistant seals of Duckbill Check Valve . In the flue gas duct of waste incineration power generation, it resixes the corrosive components in the flue gas and forms a protective relay with the corrosion-resistant Rubber material of Rubber Expansion Joint in different temperature segments. The former guards the high-temperature corrosion area, and the latter guarantees the normal temperature connection section.
The ease of installation is a practical advantage of fabric expansion joints. It can be assembled on site, is lightweight and compact in structure. The difficulty of transportation and installation is much lower than that of Metal compensators. In the narrow space of the cabin pipeline, it can quickly connect pipes of different specifications through Flange Adaptor. Combined with the Flexible bending feature of the Flexible Metal Hose, it can easily cope with complex pipeline layouts. In the aeration pipelines of municipal sewage treatment, this easy-to-install feature can shorten the construction period, and when combined with Dismantling Joint, it is convenient for later maintenance and repair.
Scene Adaptation: The "Compensation Main Force" in Multiple fields
The boiler system in the power industry is the "core battlefield" of Fabric Expansion Joint. It is installed in the flue and air ducts at the inlet and outlet of the boiler to compensate for the pipe Expansion caused by high-temperature flue gas. It cooperates with the Bellow Expansion Joint to absorb the thermal shock during the start-up and shutdown of the boiler. The Rubber Expansion Joint is installed at the outlet of the induced draft fan to absorb the vibration of the equipment. The three work together to ensure the stable operation of the flue gas system.
In the acid and alkali waste gas treatment pipelines of the chemical industry, the corrosion resistance of fabric expansion joints plays a key role. It connects the exhaust gas treatment tower with the fan pipeline, compensates for the displacement of the pipeline caused by changes in temperature and pressure, and cooperates with the corrosion-resistant branch pipe of Flexible Metal Hose to achieve a sealed connection through Flange Adaptor to prevent the leakage of corrosive exhaust gas. Its security and the anti-backflow function of Duckbill Check Valve form a double guarantee.
In the refrigeration pipeline of the food freezer, the low-temperature resistance performance of the fabric Expansion Joint can adapt to the low-temperature environment of -40 ℃, compensate for the cold contraction displacement of the refrigerant pipeline. When combined with the low-temperature resistant model of Rubber Expansion Joint, Dismantling joint facilitates the regular maintenance of refrigeration equipment. Ensure the long-term stable operation of the low-temperature system.
System Synergy: "Efficiency Multiplication" through Accessory Linkage
In a complete piping system, the synergy effect of Fabric Expansion Joint with other fittings significantly enhances the system performance. In the hot air pipeline of blast furnaces in the metallurgical industry, it is segmented with the Bellow Expansion Joint to compensate for the thermal displacement of the pipeline. The fabric expansion joint bears the lateral offset, the metal bellows is responsible for the axial elongation, and the Flange Adaptor ensures the sealed connection of different compensation sections. The Flexible Metal Hose is connected to the temperature measurement element to adapt to pipeline vibration and ensure accurate monitoring.
In the secondary pipe network of municipal centralized heating, the fabric Expansion Joint compensates for the thermal expansion and contraction of the pipeline, the Rubber Expansion Joint absorbs the vibration of the circulating pump, and the Dismantling joint facilitates the maintenance of the heating station equipment. The three form a stable heating pipeline network through the Flange Adaptor. In the clean pipelines of the pharmaceutical industry, its smooth inner wall, in combination with food-grade Rubber Expansion Joint, meets GMP hygiene standards, and Duckbill Check Valve prevents medium backflow contamination, jointly ensuring the safety of drug production.
With the comprehensive advantages of multi-directional compensation, vibration and noise reduction, weather resistance, corrosion resistance and easy installation, Fabric Expansion Joint has become a benchmark product in the field of non-metallic flexible compensation. It works in coordination with various Pipe Fittings to provide reliable displacement compensation and protection solutions for pipeline systems in multiple fields such as power, chemical engineering, and municipal services, maintaining a stable and efficient operating state under complex working conditions.
Contact Now