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Low temperature bellows sealing is a sealing technology used in extreme low temperature environments, which ensures the safety of pumped fluids while providing long-term reliability. When designing pumps for transporting low-temperature fluids, special designs are often used, such as vertical multi-stage double shell pumps according to the American Petroleum Institute (API) 610 standard. These pumps have a heating chamber called a cofferdam that can thermally isolate the shaft seal from the cold pumped fluid, allowing for the use of traditional sealing techniques
The HW800 dry running bellows cartridge seal is suitable for the most common standards and extended sealing chambers of ANSI, DIN, and metric pumps. Its bellows inner diameter is designed with a 45 degree chamfer to ensure stress dissipation in each bellows plate and maximize its service life. It is suitable for pipeline sealing applications in fields such as petroleum, chemical, power, pharmaceuticals.