Beijing Hownew Energy Technology Group Co., Ltd
| Payment Terms | L/C, T/T, Western Union, MoneyGram |
| Supply Ability | 30000 Pieces per Month |
| Delivery Time | 7-30 days |
| Packaging Details | wooden case or pallet or as per customers' requirement |
| Working Pressure | 1.6/2.5MPa |
| Specification | DN10-DN300 |
| Connection | Flange |
| Brand Name | HNEENERGY |
| Model Number | SS304/316 Metallic |
| Certification | ASME, ANSI, DIN, JIS,ISO etc. |
| Place of Origin | China |
View Detail Information
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Product Specification
| Payment Terms | L/C, T/T, Western Union, MoneyGram | Supply Ability | 30000 Pieces per Month |
| Delivery Time | 7-30 days | Packaging Details | wooden case or pallet or as per customers' requirement |
| Working Pressure | 1.6/2.5MPa | Specification | DN10-DN300 |
| Connection | Flange | Brand Name | HNEENERGY |
| Model Number | SS304/316 Metallic | Certification | ASME, ANSI, DIN, JIS,ISO etc. |
| Place of Origin | China | ||
| High Light | Flexible Bridge Metal Expansion joints ，Metal Expansion joints SS304 ，Metallic Bellow Expansion Joint | ||
Expansion joints(compensators)
Expansion Joints: Versatile Compensators for Pipelines and Vessels
Expansion joints, commonly known as compensators, are critical components in various industrial applications. They consist of one or more bellows, an elastic component, serving as the main working body. Along with connectors, supports, flanges, conduits, and other accessories, these joints are flexible structures designed to be installed on vessel shells or pipelines.
Functionality and Applications
Expansion joints are essential for compensating additional stresses caused by temperature differences and mechanical vibrations. Through the effective expansion and contraction of the bellows, they alleviate dimensional changes in pipelines, conduits, and vessels due to thermal expansion and contraction. Furthermore, they can adjust for axial, lateral, and angular displacements in these systems. Beyond their primary function, expansion joints also find use in noise and vibration reduction and heating supply systems.
In heating pipelines, compensators play a vital role in preventing deformation or damage caused by thermal expansion or temperature stress. Installed on pipelines, they compensate for thermal expansion, thus reducing stress on pipeline walls and minimizing forces exerted on valves or support structures.
Advantages and Applications
As elastic compensating components capable of free expansion and contraction, expansion joints offer numerous advantages. They are reliable, perform well, and have a compact structure. Due to these attributes, they are widely used in industries such as chemical engineering, metallurgy, and nuclear energy.
Types and Forms
Expansion joints come in various forms for vessels, with the U-shaped joint being the most popular choice based on bellows shape. Ω-shaped and C-shaped joints are also commonly used. When it comes to pipelines, expansion joints are classified according to structural compensation. Types include the universal expansion joint, pressure balanced expansion joint, hinged expansion joint, and gimbal expansion joint. Each type is tailored to meet the specific needs and demands of different industrial applications.
| Main Item | Classification | Description |
| Metal Expansion Joint | ElbowExpansion Joint | Bent pipes, such as U-shaped tension bends, serve as expansion joints leveraging their elastic deformation to compensate. Boasting strong durability and longevity, they're crafted on-site. However, they occupy significant space, demand high steel volumes, and encounter substantial friction. Despite drawbacks, they find extensive use in steam piping and lengthy pipelines. |
| Bellows Expansion Joint
| A bellows expansion joint is an expansion joint made of metal bellows. It can expand and contract along the axial direction of the pipeline, and also allows a small amount of bending. In order to prevent exceeding the allowable compensation amount, protective rods or rings are installed at both ends of the bellows, and guide supports are installed on both ends of the connected pipelines. There are also angular and lateral expansion joints, which can be used to compensate for rotational deformations and lateral deformations of pipelines. The advantages of these expansion joints are space-saving, material-saving, easy standardization, and mass production, but the disadvantage is the relatively short lifespan. Bellows expansion joints are generally used in short pipelines with low temperature and pressure. With the improvement of bellows production technology, the application scope of this type of expansion joint is expanding. Currently, bellows expansion joints can be used in pipe systems with a maximum pressure of 6.0 MPa. | |
| Slip-Type Expansion Joint | The slip-type expansion joint consists of inner and outer sleeves capable of relative axial movement. The space between the inner and outer sleeves is sealed with stuffing box. During use, keep both ends of the pipes moving on the same axis. The product mainly consists of sleeves (core tubes), shells, sealing materials, etc. It is used to compensate for axial expansion and axial rotation by arbitrary angle of pipelines. It has the characteristics of small volume and large compensation amount, suitable for hot water, steam, and grease media. By sliding the sleeve against the outer sleeve, it can compensate the thermal expansion. The inner sleeve of the slip-type expansion joint is connected to the pipeline and adopts the principle and structure of high-performance self-sealing dynamic seal. It can slide freely inside the shell with the expansion and contraction of the pipeline, and can meet the sealing requirements of any pipeline. A type of seal with new synthetic material is used between the shell and the inner sleeve, which can withstand high temperatures, possess corrosion resistance, and aging resistance, with an applicable temperature range of -40 to 150 degrees Celsius, and up to 350 degrees Celsius under special circumstances. It can not only ensure axial sliding but also prevent leakage of the medium inside the pipe. | |
| Non-metallic Expansion Joint | Rubber Expansion Joint | Composed of rubber and rubber-fiber composite materials, steel flanges, sleeves, and insulation materials, it is mainly used for flexible connections between various fans and ducts. Its functions include shock absorption, noise reduction, sealing, medium resistance, easy displacement and installation. It is an ideal accessory for shock absorption, noise reduction, smoke and dust removal in the field of environmental protection. |
| Fabric Expansion Joint | Fabric expansion joints, primarily composed of fiber fabric and high-temperature resistant materials like rubber, offer versatile compensation for fan and duct vibrations and deformations. They adeptly address axial, lateral, and angular adjustments without generating thrust, simplifying support design. Noteworthy features include corrosion resistance, high-temperature resilience, noise reduction, and vibration dampening. Ideal for power plant hot blast and smoke and dust pipelines, these non-metallic compensators boast inherent sound absorption and vibration isolation properties, effectively minimizing noise and vibration from boilers, fans, and other systems. With a simple structure, lightweight build, and straightforward maintenance, they ensure operational efficiency with ease. |
Super Austenitic Stainless Steel:254SMO,904L,AL6XN
Duplex Stainless Steel :2205 Dual phase steel (S31803)
Nickel Based Alloy Steel:INCOLOY800/800H/800HT/840/825,INCONEL600/601/690/625/X-750
Hastelloy Alloy C-276/C-22/X,MONEL400/K500
Pure Nickel:N4,N6(Ni200,Ni201)
Titanium Plate For Stamping:GR1,GR2,TA1,TA2
Austenitic Stainless Steel:SUS304,SUS304L,SUS316,SUS316L,SUS310S,SUS321,SUS316Ti
Company Details
Business Type:
Manufacturer,Agent,Importer,Exporter,Trading Company
Year Established:
2018
Total Annual:
15000000-18000000
Employee Number:
70~100
Ecer Certification：
Verified Supplier
Established in 2018 with a registered capital of 300 million yuan, Beijing Hownew Energy Technology Group Co., Ltd. owns three holding subsidiaries: Cangzhou Yuantuo Piping Equipment Co., Ltd., Beijing Shenfupeng Piping Equipment Development Co., Ltd., and Hownew Technology (Hong Kong) Co., Ltd. Ho... Established in 2018 with a registered capital of 300 million yuan, Beijing Hownew Energy Technology Group Co., Ltd. owns three holding subsidiaries: Cangzhou Yuantuo Piping Equipment Co., Ltd., Beijing Shenfupeng Piping Equipment Development Co., Ltd., and Hownew Technology (Hong Kong) Co., Ltd. Ho...
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