Acid and alkali resistant rubber joints are mainly used in corrosive pipelines, providing resistance to acids and alkalis. They are commonly used in sewage and chemical pipelines. These joints are primarily made of EPDM (ethylene propylene diene monomer) raw material, vulcanized at high temperatures and bonded to polyester cord fabric. Flanges are then fitted at both ends to produce the rubber joint.
In addition to its acid and alkali resistance, the EPDM rubber in acid and alkali resistant joints also possesses high-temperature resistance. Under normal circumstances, the maximum operating temperature can reach 120 degrees Celsius. If the pipeline medium is corrosive or the medium temperature exceeds 120 degrees Celsius, it is necessary to consider replacing the rubber with another material. So, what kind of rubber should be used, and can the replacement rubber simultaneously maintain both acid and alkali resistance and high-temperature resistance?
Besides EPDM rubber, neoprene rubber and silicone rubber can also be used for acid and alkali resistant rubber joints. However, silicone rubber is not commonly used, not only because of its high price, but also because its properties result in poor bonding with polyester cord fabric, preventing mass production. Let’s discuss neoprene rubber acid and alkali resistant rubber joints below.
Neoprene rubber possesses excellent physical and mechanical properties, including resistance to oil, heat, flame, sunlight, ozone, acids, alkalis, and chemical reagents. Its disadvantages include poor cold resistance and storage stability. It exhibits high tensile strength, elongation, and reversible crystallinity, resulting in good adhesion. It also demonstrates excellent aging resistance, heat resistance, oil resistance, and chemical corrosion resistance. Neoprene rubber fully leverages its advantages in the production of rubber joints, contributing significantly to pipeline performance. Acid and alkali resistant rubber joints require customization based on the operating temperature and acid/alkali concentration of your pipeline’s operating medium.
Our factory produces a wide variety of products, including acid and alkali resistant rubber joints, oil-resistant rubber joints, and high-pressure resistant rubber joints, not to mention large-flange rubber joints, double-ball rubber joints, and reducing rubber joints. Our service principle is to provide you with customized high-quality products. Welcome to contact us for inquiries: +8619838017319
