Viking Pump invented, patented and manufactured the very first sealless mag drive rotary positive displacement (PD) pumps in the world, and developed several series over time for different applications, including the first generation 825, 895 and 855 ™ internal gear pumps.

Of these first generation mag drive pumps, all had different footprints from their dynamically-sealed cousins with...

If you’ve ever fallen asleep reading pump texts about NPSH, you’re not alone. But here’s an easy-to-understand, graphical approach to ensuring your NPSHa>NPSHr.

For newbies, Net Positive Suction Head Available (NPSHa, a function of the suction side of the pump system) must exceed Net Positive Suction Head Required (NPSHr, a function of the pump) to avoid...

At Viking Pump, innovation is at the forefront of what we do. With the introduction of the U-Plus™ Bracket and ProPort™ Casing, we are redefining the capabilities of our internal gear pumps. These advancements are not just about new technology; they are about providing flexibility and efficiency in your pumping process. Let’s dive into what makes these innovations stand out.

Discover how internal gear pumps work, their key features, and their advantages across various industries. Learn why they're the preferred choice for fluid handling.

Unlike food processors who primarily use centrifugal pumps, chocolate and confectionery processors have two main preferences for handling viscous liquors, chocolates, sugars and other confectionery liquids: Rotary Lobe / Circumferential Piston (CP) pumps and Internal Gear Pumps. These Positive Displacement-type pumps are chosen due to various reasons. But which is best?

A key advantage of rotary positive displacement pumps is providing consistent flow regardless of changes in liquid viscosity or differential pressure. But should a downstream blockage occur, pressure will rapidly build and may exceed the rating of the pump, drive equipment, system, or any combination thereof, with the potential for damage and unplanned downtime. For this reason, overpressure protection must be used, and pressure relief valves are the most commonly used form of overpressure protection for rotary positive displacement pumps.