Linde Polymer Tec Co.,Ltd. is one of the most experienced manufacturers and suppliers of vacuum flange centering ring seal in China, also supports customized service. Please feel free to buy high quality vacuum flange centering ring seal for sale here from our factory.
Products Description
| Material | EPDM |
| Keywords | Vacuum Flange Centering Ring Seal |
| Hardness | 30~90 Shore A |
| Origin | Xiamen, China |
| Volume resistivity | 1016Ω·cm |
| Density | 0.85-1.2g/cm³ |
| Tensile strength | 10-20MPa |
Introduction
Vacuum flange centering ring seal uses rubber material to achieve sealing in a vacuum environment. It is widely used in occasions requiring high vacuum, such as scientific research, industrial production, and other fields.
Flanges are usually made of materials such as 304 or 316 stainless steel, while sealing materials may include Viton, Buna, Silicone, EPDM, and aluminum wire. The sealing ring is usually an O-shaped rubber ring with a large diameter range.
Advantages of vacuum flange centering ring seal
1. High reliability: The centering ring seal can provide very high sealing performance and ensure that the system works stably in a high vacuum environment.
2. Wide range of applications: Flange centering rings can be used in various equipment and systems that require high vacuum environments, such as vacuum tubes, vacuum dryers, vacuum freeze dryers, etc.
3. Good dynamic performance: The vacuum flange centering ring has good dynamic performance and can adapt to displacement and vibration within a certain range to ensure the stability of the system.
4. Long life: The centering ring seal adopts high-quality materials and advanced production technology, which has a long service life and durability.
5. Strong corrosion resistance: The vacuum flange centering ring seal has good corrosion resistance and can adapt to the sealing requirements of various acid and alkali gases and liquids.
6. Low leakage rate: The centering ring seal has a very low leakage rate, which can ensure the stability of the high vacuum environment and the purity of the gas.
Application
1. Vacuum equipment: Due to the special operating environment of vacuum equipment, vacuum flange centering rings need to be used for connection. In vacuum coating equipment, various materials such as Al, Cr, Cu, Ti, and other metals, as well as nitrogen, oxygen, argon, and other gases need to be connected through vacuum flanges to achieve multi-component co-plating and cross-linking operations.
2. Manufacturing: In the semiconductor industry, vacuum flange centering ring seals are often used for connections in processes such as gas preparation and chemical vapor deposition, as well as for optode plasma irradiation during wafer manufacturing.
3. Aerospace: The aerospace field puts forward strict requirements for vacuum equipment. Vacuum flange centering rings are widely used in aerospace instruments and ground test equipment.
4. Medical technology: In the field of medical technology, flange-centering ring seals are used in the manufacture of blood separators and other medical equipment to ensure the normal operation and efficiency of the equipment.
In addition, the vacuum flange centering ring seal is also widely used in refrigeration equipment, vacuum tubes, vacuum pumps, optical equipment, and other fields.

Craftsmanship
1. Prepare materials: Select appropriate materials, such as metal, rubber plastic, etc., to make the centering ring.
2. Processing and shaping: According to the design requirements, the material is processed into the shape of the centering ring. This step can be accomplished by machining, forming, or mold casting.
3. Surface treatment: Surface treatment is performed on the processed centering ring to improve its corrosion resistance, wear resistance, and other properties. This step may include spraying, plating, or other surface treatment techniques.
4. Assembly: Assemble the processed centering ring to the corresponding flange to ensure its sealing performance. This step may require the use of specific tools or equipment, such as clamps, presses, etc.
5. Quality inspection: Inspect the assembled centering ring to ensure that it meets the design requirements and relevant standards. This step may include air tightness testing, pressure testing, etc.
6. Packaging: Pack the qualified centering rings to facilitate storage and transportation. The packaging should be dust-proof, moisture-proof, and shock-proof to ensure that the centering ring will not be damaged during transportation.
Why choose us
■ Recipe development
✭The company has more than 30 years of experience in designing rubber formulas, with about 2,000 formulas.
✭Materials include NBR, EPDM, VITON, SILICONE, CR, NR, HNBR, and more than ten kinds.
✭Complies with 85% of automotive material specifications and UL/NSF/FDA/KIWA/TUV and other certification requirements.
■ Mixing technology
✭Work with world-class material suppliers
(DuPont, Zeon, Bayer, DSM,3M, Shin-Etsu, Daikin, JSR, EXXON & …)
✭With more than 30 years of mixing experience, the mixing technology has been unanimously recognized by customers.
✭Insist on quality inspection of mixed rubber materials: filtration, extrusion, cooling, vulcanization inspection, etc.
■ Mold technology
✭The company has more than 30 years of experience in mold design and production, a strong team of design engineers, and a CNC machining center, with rapid design and prototyping capabilities.
✭Complete product development, design, and production can be carried out according to the different needs of customers to meet the customized needs of different customers.
✭Among them, O-rings have accumulated more than 4,000 pairs of molds, including American standard AS568, Japanese standard JISB2401, a full range of metric and metric sizes, and some national standard size molds.
Precautions for using vacuum flange centering ring seal
1. Before use, check whether the centering ring is intact and has no obvious wear or deformation.
2. When installing the centering ring, make sure that the surface of the flange is clean and free of oil, dust, and other impurities.
3. During installation, the bolts should be tightened according to the specified torque and sequence to avoid excessive pressure or distortion of the centering ring.
4. During use, the sealing performance of the centering ring should be checked regularly. If leakage is found, it should be dealt with in time.
5. Avoid using lubricants or cleaners on the vacuum flange centering ring seal to avoid affecting the sealing performance.
6. When disassembling and reinstalling the centering ring, be careful to avoid damaging the sealing surface of the centering ring.
7. For special application scenarios, such as high temperature, high pressure, corrosive, and other environments, appropriate centering ring materials and sealing technologies should be selected, and operations should be carried out in strict accordance with relevant regulations.
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