The TH Series magnetic drive rotary vane pumps are ideally suited for low flow/high head applications. Features self-compensating sliding-vanes that maintain design head and flow capacities for extended operating life. Suitable for thin non-lubricating liquids and/or high differential pressure without rapid wear associated with gear mechanisms. Capable of self-priming from a dry start. The magnetic drive principle consists of an inner magnet connected to the rotor shaft and an outer magnet connected to the motor shaft. Synchronous alignment of the two magnets provides pump operation, while decoupling occurs when the pump head exceeds the coupling torque of the magnet coupling. Multiple configuration options available to meet specific customer needs. Key benefits: longer service life, low maintenance, no mechanical seals, less power consumption, totally sealed body, and smooth transmission.