Flanged flange rubber expansion joint

Flanged Rubber Expansion Joint Super Detailed Product Introduction

 

The overall structure of the flanged rubber expansion joint is scientifically and reasonably designed, mainly composed of high-elastic composite rubber main body, high-strength carbon steel flange and optional safety limit tie rod assembly, with stable structure, strong pressure resistance and long service life. The rubber main body adopts multi-layer composite weaving and internal reinforcement technology, which is composed of inner rubber layer, multi-layer fabric reinforcement layer, steel wire winding reinforcement layer and outer rubber protective layer. The inner rubber layer is smooth and dense with excellent sealing performance and medium corrosion resistance, which can effectively prevent medium erosion and leakage; the middle fabric and steel wire reinforcement layers greatly improve the tensile strength, bursting pressure resistance and structural stability of the product, avoiding deformation and damage of the rubber body under long-term high-pressure operation; the outer rubber layer has super weather resistance, aging resistance and wear resistance, which can resist outdoor ultraviolet radiation, air oxidation and external mechanical friction. According to different use environments and conveying media, the product can be customized with different rubber materials such as natural rubber (NR), ethylene propylene diene monomer rubber (EPDM), nitrile rubber (NBR) and fluorine rubber. Natural rubber is suitable for conventional clean water and normal-temperature conventional medium transportation; EPDM rubber is suitable for high-temperature water, hot air and weak corrosive medium environments with excellent high temperature resistance and aging resistance; NBR rubber is specially used for oil medium transportation with outstanding oil resistance; fluorine rubber is used for special strong corrosion working conditions. The matching flange is made of high-quality carbon steel through integral forging and precision machining, with uniform and smooth bolt holes, accurate size and good verticality. The surface is treated with anti-rust paint and anti-corrosion spraying, which can effectively prevent flange rust and oxidation, ensure stable bolt locking force during installation, and realize fast, accurate and firm butt joint and installation with standard pipeline flanges.

This flanged rubber expansion joint has extremely superior comprehensive performance and irreplaceable advantages compared with traditional rigid pipe fittings and ordinary pipe connectors. Firstly, it has multi-dimensional displacement compensation capability, which can freely adapt to axial stretching and compression, left and right lateral deflection and multi-angle angular rotation displacement of the pipeline, fully offset the pipeline deformation caused by temperature change, construction errors and foundation changes, and completely release the internal stress of the pipeline system. Secondly, it has excellent vibration reduction and noise isolation performance, which can effectively cut off the vibration propagation path between mechanical equipment and pipelines, absorb high-frequency and low-frequency vibration generated by pump body and fan operation, significantly reduce pipeline resonance phenomenon, and greatly reduce the operating noise of the entire pipeline system to improve the on-site working environment. Thirdly, the product has ultra-high sealing performance, the integral rubber structure has no splicing gaps, which can maintain zero leakage of liquid and gas medium under rated working pressure, and solve the common problems of interface seepage and leakage of traditional pipe fittings. In addition, the product has strong environmental adaptability, excellent aging resistance, weather resistance, corrosion resistance and wear resistance, can operate stably for a long time in high temperature, low temperature, humid, outdoor open-air and weak corrosive environments, and is not easy to age, crack and deform. The optional safety limit tie rod structure can effectively limit the maximum telescopic displacement of the rubber joint, prevent excessive stretching and compression of the rubber body under ultra-high pressure, water hammer impact and extreme working conditions, avoid product damage and pipeline detachment, greatly improve the safety and stability of pipeline operation, and extend the overall service life of the product and pipeline system. At the same time, the product has the characteristics of simple installation, strong universality and low later maintenance cost, which can greatly save pipeline construction time and engineering operation cost.

Flanged rubber expansion joints have extremely wide industry adaptability and scene coverage, and can be perfectly matched with various conventional and special pipeline systems in municipal engineering and industrial fields. In municipal construction projects, they are widely used in municipal water supply and drainage pipe networks, residential community water supply and drainage systems, urban reclaimed water circulation systems and fire-fighting water supply pipeline systems, solving pipeline vibration and deformation problems in urban pipe network operation. In the field of central air conditioning and HVAC ventilation, they are applied to cold and hot water circulation pipelines of central air conditioning units, fan coil connecting pipelines and ventilation and exhaust pipelines, playing a key role in vibration reduction, noise reduction and thermal displacement compensation. In petrochemical, chemical and energy industries, the products can adapt to the transportation of oil, industrial wastewater, weak acid and weak alkali chemical media, and are used for pipeline connection of chemical reaction equipment, storage tank connecting pipelines and process conveying pipelines to ensure the safe operation of chemical process pipelines. In power plant engineering, they are suitable for cooling water circulation pipelines, boiler water supply and return pipelines and auxiliary equipment connecting pipelines of thermal power plants, effectively buffering equipment vibration and pipeline thermal deformation. In industrial manufacturing fields such as factories and workshops, they are used for water pump outlet and inlet pipelines, mechanical equipment matching pipelines and circulating water systems of production lines, reducing equipment operation vibration and protecting pipeline facilities. At the same time, customized products with special materials and special pressure levels can also be used for special working conditions such as high temperature, high pressure and slightly corrosive media, covering almost all conventional pipeline flexible connection scenarios in modern industrial and municipal engineering.

In order to ensure the best use effect and service life of the flanged rubber expansion joint, standardized installation operation specifications must be followed in actual construction and installation. Before installation, the appearance of the product should be carefully inspected to confirm that the rubber body has no cracks, bubbles, damage and defects, the flange surface is flat and free of rust and deformation, and the bolt holes are complete and unobstructed. During installation, the expansion joint should be aligned with the pipeline flange interface accurately, and the bolt penetration direction should be unified. All bolts need to be tightened diagonally and evenly in sequence to avoid local stress concentration caused by one-side excessive locking, so as to prevent rubber body extrusion deformation and sealing failure. It is strictly forbidden to forcibly twist, bend and stretch the rubber joint artificially during the installation process, and do not use the rubber joint to adjust the pipeline installation deviation excessively, so as to avoid structural damage and performance attenuation of the product. For high-pressure pipelines, long-distance transmission pipelines and pipelines with large vibration amplitude, it is necessary to install matching limit tie rod components to limit the ultra-displacement of the expansion joint and resist the impact of water hammer and air pressure. After the installation is completed, a certain telescopic allowance should be reserved for the pipeline to adapt to the thermal expansion and cold contraction changes of the pipeline in different temperature environments. During the use of the product, avoid long-term extrusion of external hard objects and severe mechanical impact on the rubber body, and regularly check the bolt fastening degree and rubber aging status to ensure the long-term safe and stable operation of the pipeline system.