German Atlantic fluid seals, Atlantic fluid models, Atlantic fluid prices

Atlantic fluid seals are the customary term for general seals; simply put, they are seals for lubricating oil. They are mechanical components used to seal grease (oil is the most common liquid substance in transmission systems, and also refers to general liquid substances). They isolate components requiring lubrication in the transmission system from output components, preventing lubricating oil leakage. Seals used for static sealing and dynamic sealing (generally reciprocating motion) are called oil seals. The representative form of oil seals is the TC oil seal, which is a double-lip oil seal with a self-tightening spring fully covered by rubber. Generally, when referring to oil seals, it often refers to this type of tc skeleton oil seal.

Atlantic fluid seal classification

Oil seals are generally divided into monolithic and assembled types. Assembled types allow free combination of the skeleton and lip material, generally used for special oil seals. Based on sealing function, characteristics, structural type, operating status, and sealing mechanism, oil seals can be categorized into various forms and names. However, conventionally, rotating shaft lip seals are called oil seals, while seals used for static and dynamic sealing (generally reciprocating motion) are called seals. The representative form of oil seals is the TC oil seal, which is a double-lip oil seal with a self-tightening spring fully covered by rubber. Generally, when referring to oil seals, it often refers to this type of tc skeleton oil seal.

Atlantic fluid seal materials

Common materials for oil seals include: Nitrile Rubber, Fluorocarbon Rubber, Silicone Rubber, Acrylate Rubber, Polyurethane, Polytetrafluoroethylene, etc. 1) Nitrile Rubber (NBR): It has good heat and wear resistance, resistant to various lubricating oils, greases, oil-gas mixtures, etc. Applicable temperature range: -30 to 120 degrees Celsius. However, it cannot be used in phosphate ester hydraulic fluids or gear oils containing extreme pressure additives. It performs stably in gasoline and low aniline point mineral oils. 2) Polyacrylate Rubber (ACM): Superior oil and heat resistance, wear resistance, ozone resistance, and UV radiation resistance. Especially resistant to lubricating oils, gear oils, motor oils, engine oils, and petroleum-based hydraulic fluids containing extreme pressure agents. Suitable for working temperatures between -30 and 150 degrees Celsius. 3) Fluorocarbon Rubber: Resistant to aging, heat, and oil. Suitable for almost all lubricating oils, fuel oils, and gasoline. It does not harden easily in oils containing extreme pressure additives. However, it has poor cold resistance and high-temperature wear resistance, and significant permanent compression deformation. Suitable for temperatures between -20 and 250 degrees Celsius. 4) Silicone Rubber: Outstanding high and low-temperature resistance. Can be used long-term at 150 degrees Celsius without performance change. Can be used continuously at 200 for 10000h. Maintains its unique elasticity, ozone resistance, and weather resistance within the working temperature range of -70 to 260 degrees Celsius. 5) Polytetrafluoroethylene: Outstanding chemical stability, thermal stability, friction reduction, and self-lubrication. Its decomposition temperature is above 400 degrees Celsius. Therefore, it can work normally within the temperature range of -200 to 300 degrees Celsius. Except for free fluorine and alkali metals, it has excellent corrosion resistance to chemicals, solvents, hydroxides, and acids. Nitrile rubber and fluorocarbon rubber are widely used oil seal materials. The former is low-cost, but the latter offers significant improvements in temperature resistance and sealing performance, though at a higher cost. It still retains some negative commonalities of ordinary rubber materials, such as poor wear resistance, short service life, and high sensitivity to shaft eccentricity, making leakage relatively common. PTFE oil seals are high-tech products and represent the future direction of oil seal development [2]. When selecting oil seal materials, one must consider the material's compatibility with the working medium, adaptability to the working temperature range, and the lip's ability to follow the rotating shaft at high speeds. Generally, during operation, the lip temperature is 20 to 50℃ higher than the working medium temperature, which should be noted when selecting materials. The working range of oil seals depends on the material: Nitrile Rubber (NBR) is -40 to 120℃, Acrylate Rubber (ACM) is -30 to 180℃, and Fluorocarbon Rubber (FPM) is -25 to 300℃.

Atlantic fluid seal installation precautions

1) During installation, pay close attention to avoid installation deviations. Tighten the pressure cover after aligning the coupling. Bolts should be tightened evenly to prevent tilting of the pressure cover face. Check each point with a feeler gauge; the error should not exceed 0.05 mm. Check the fit clearance (i.e., concentricity) between the pressure cover and the outer diameter of the shaft or shaft sleeve. It should be uniform around the circumference. Check each point with a feeler gauge; the allowable error should not exceed 0.01 mm. 2) Spring compression must be performed according to regulations. Excessive or insufficient compression is not allowed. The required error is 2.00 mm. Excessive compression increases face specific pressure, accelerating face wear. Insufficient compression results in inadequate specific pressure, failing to achieve sealing. 3) After installing the moving ring, pressing it against the spring should allow it to spring back automatically. 4) Installation position requirements: To ensure stable operation, long service life, and low leakage performance of the mechanical seal, correct installation on the machine is crucial. Before installing the mechanical seal on the machine, compare it carefully with the general assembly drawing to confirm that all parts are ready. Pay attention to any abnormalities such as scratches or damage on the sealing faces of the friction pair and sealing rings. Also check for scratches on the shaft or shaft sleeve surfaces contacting the packing and sealing rings (O rings), flanges, and other components. If abnormalities are found, replace or repair before use. During actual installation, do not bring more parts than necessary to the site. If parts remain after installation, it indicates missing installations. If parts are insufficient, it means unnecessary parts were assembled, serving as a self-check during installation.

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