Formed Metal Bellows Seals are a type of mechanical seal that uses a single thin metal sheet formed into corrugations without welds along the corrugations. This allows the sheet to expand and contract, acting like a spring to tightly seal the seal faces, preventing fluid leakage in pumps or rotating machinery. They are manufactured from various materials such as AM350, SUS.316L, Hastelloy C-276, and Inconel 718, among others.
The key advantages of Formed Metal Bellows Seals are their robust structure, the absence of multiple welds (reducing the risk of weld seam leaks), and their cost-effectiveness relative to performance. They are suitable for general to semi-heavy duty applications such as liquids with sediment, liquids containing crystals or polymers, and high-viscosity liquids. They are commonly used in the chemical, paint and coatings, non-critical petrochemical, pharmaceutical and cosmetic, wastewater treatment, and food and beverage industries.
