Type 2609HTL is a dual unpressurized rotating bellows cartridge seal API 682 Type C, Arrangement 2. Type 3609HTL is a dual pressurized rotating bellows cartridge seal API 682 Type C, Arrangement 3. High-temperature dual pressurized and unpressurized API 682/ISO 21049 metal bellows cartridge seal with HTL technology.
These dependable API 682/ISO 21049 cartridge seals utilize an impressive design innovation by incorporating the unique high-temperature, live-loaded (HTL) mating ring technology in dual tandem seal arrangements. This new design vastly enhances seal face stability over conventional designs. The seal remains exceptionally stable in spite of thermal changes. The seals have ID and OD pressure capability withstanding full reverse pressurization.