This is a gear pump, a type of rotary positive displacement pump. Its tight-fitting clearances allow it to evacuate air in the suction line to prime the pump. And once primed, it's capable of pulling even higher vacuums. This ability to self-prime is key in applications like unloading drums, totes, rail cars, and barges. But as good as this pump is at pulling the liquid in, it's always going to be limited and not based on the pump. It's based on an invisible force pushing the liquid in from the outside, and that's atmospheric pressure.

Hi! I’m Chad Wunderlich with Viking Pump and this is an internal gear pump. With each rotation of the gears, a set volume of liquid is moved from the inlet to the outlet. And if I were to reverse the direction of rotation, I reverse the direction of flow. Now this isn’t unique to internal gear pumps, other rotary pumps like external gear, lobe, and hose pumps exhibit this same behavior. But did you know it’s possible to make this internal gear pump deliver flow in just one direction, independent of the direction of rotation?

In Nebraska, soybean oil is just one edible oil that's produced. Soybean oil is used not only for cooking but also in the manufacture of personal care products and as a feedstock in the manufacture of biodiesel. And just down the road, you’ll find pumps for corn oil, sunflower oil, even walnut oil. And expanding that search globally you’ll find Viking pumps for palm oil, olive oil, peanut oil, rapeseed oil, grapeseed oil, and dozens of others. Next is Arizona. Seal coat is an asphalt emulsion used in the repair of paved surfaces.