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Shaft diameter: 25 … 100 mm. Pressure: Up to 25bar Temperature: -50 °C … +200 °C Seal ring: Carbon graphite resin impregnated, Carbon graphite antimony impregnated, Silicon carbide, Tungsten carbide. Mating ring: Silicon carbide, Tungsten carbide. Secondary seals: TTV, FEP, FKM, EPDM, Aflas, Kalrez, FFKM. Springs: SS 316, Hastelloy C. Metal parts: SS 316, other materials on request. Dual seal. Cartridge. Balanced. Independent of direction of rotation. Double pressure balanced. Integrated pumping device. Ideal seal for standardizations. Universal applicable for packings conversions. No dimensional modification of the seal chamber necessary, small radial installation height. No damage of the shaft by dynamically loaded O-Ring. Extended service life. No damage caused by dirt entered during assembly. Straightforward and easy installation due to pre-assembled unit. Customer specific versions available. Petrochemical industry . Chemical industry. Pharmaceutical industry. Power plant technology. Pulp and paper industry. Mining industry. Food and beverage industry. Sugar industry. Universally applicable. Centrifugal pumps. Eccentric screw pumps.