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Internal gear pumps are the go-to positive displacement technology for viscous fluids: a rotor gear drives an internal idler gear, and fluid fills the spaces between the teeth, carried smoothly from suction to discharge. Shop internal gear pumps factory-direct from the PSG® Store.

Tell us the fluid, viscosity, and temperature — and whether it needs jacketing. We'll match the G, E, or V Series pump for your product.
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