Chesterton 150L is a 2.125-inch shaft single-cartridge seal with 316 stainless steel metal parts (EN 1.4401) designed to fit standard ANSI/ISO process pump envelopes. The 150L variant features a single screw clamp lock ring design to simplify installation and reduce misalignment during assembly. All metal components are EN 1.4401 (316SS), with other metallurgies available on request. Installation documentation confirms the 2.125-inch shaft-size option and notes that for temperatures above 150°C (300°F) Chesterton Engineering can advise on higher-temperature options.
