Types of Pumps:o Centrifugal Pump (most common):Mature design with a wide range of options. Prices are significantly influenced by factors such as flow rate, head, and speed. Special design required for high-temperature oils, including central support structures and sealed cooling systems.Gear Pump (Positive Displacement)Ideal for high viscosity (especially during the preheating stage) or medium to low flow conveyance. Generally more expensive than centrifugal pumps with similar specifications, particularly when using special materials or seals.Screw Pump (Positive Displacement)Ideal for high viscosity fluids, applications with trace particles, or those requiring smooth conveyance. Typically priced higher than centrifugal pumps, but lower than similarly-rated high-performance gear pumps.

　　Magnetic Pump:Choice for zero-leak scenarios (due to complete sealing).