Material selection for the sealing O-rings in enamel reactors under harsh conditions! 】
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【Material selection for gasket O-rings in enamel reactors under harsh conditions!】 】 Experts: We have a reaction kettle, and the operating conditions inside it are as follows: 1. 160 degrees ； 2. There is HCl gas ； 3. There is toluene gas ； For the O-rings with double-end sealing, we have used products from many different manufacturers, and their lifespan has not been long; it’s likely due to an inappropriate choice of material. Please ask experts to recommend an O-ring material suitable for the above operating conditions. Thank you!
The G75m is sufficient for this purpose; its temperature range is from -10 to +260 degrees. G75m is a grade of Perlast® perfluoropolymer rubber! Perlast® utilizes the patented “Pseudo Living Polymerisation” technology, which significantly improves the chemical and mechanical properties of previous perfluoroelastomers, while also enhancing the high and low temperature performance of this chemically resistant material. Chemical compatibility of Perlast®: All Perlast grades utilize a single cross-linking system, ensuring compatibility with chemical media. Perlast has a molecular structure very similar to PTFE, which provides excellent thermal stability and chemical resistance. Perlast’s perfluorinated rubber combines excellent chemical resistance with thermal stability up to 330 ºC. This simplifies the process for users to select materials and, in many cases, makes it more reasonable to use a single grade for all applications. The extreme temperature performance of Perlast® To date, perfluorinated rubbers have shown low chemical compatibility at the upper limits of their operating temperature range. To expand the applications of Perlast, PPE Company has improved its physical properties, enabling it to exhibit better compressive deformation at higher temperatures. Tests conducted by Perlast show that it maintains its chemical compatibility even at high temperatures of up to 330 ºC. PPE has unveiled the world’s first cryogenic-resistant perfluororubber that can function at temperatures as low as minus 35 ºC. Perlast 70L overcomes many of the technical challenges that prevent perfluororo elastomers from being used in environments more severe than minus 20ºC. Perlast G70L maintains its elasticity at minus 35 ºC, and in some applications it can withstand short-term temperatures as low as minus 60 ºC without becoming brittle. If you want to know more, you can visit our company’s website: http://www.xttech.com.cn. We have an office in Chengdu; if you have any questions, feel free to contact us – we’ll be happy to assist you! Perlast® is primarily synthesized by copolymerizing tetrafluoroethylene and perfluoroalkyl vinyl ether as the main monomers, along with a small amount of a third monomer containing sulfurization sites. It possesses not only excellent high-temperature resistance and chemical resistance similar to PTFE – enabling it to withstand corrosion from over 1,600 different chemicals – but also the elasticity of rubber. Perfluoroelastomer is a high-performance sealing material used in a wide range of fields!
May I ask which region you are from? The product used to solve this issue is DuPont’s perfluoropolymer seals; DuPont is a leader in fluorine-based products. DuPont perfluoropolymer seals can withstand more than 300 types of corrosive substances, with an operating temperature range from -40 to 343 degrees Celsius. Please contact us if you need them
Is the elasticity of rubber needed? . Generally, PTFE or packaging materials are used. . If you want something better, you can consider using perfluorine. . It should take a bit longer in terms of time. . You can add me on Q1667913746 to chat