Two-Way Memory Spring - Smart Material-(ELS-SEPACSW7)

- These remarkable springs, based on a brass alloy, ‘remember’ to open up when heated and close again when cool. If immersed in hot water at or around 90°C they will open in a split second and close as quickly if dropped in cold water. Such springs have many industrial applications - e.g., in sprinkler and fire damping systems where they replace expensive single-use only fusible links. - Spring weight: 3g Length: 10mm, extending to 25mm in hot water External diameter: 11.5mm Internal diameter: 9mm Sold individually