
Circumferential Piston Pumps Are NOT Lobe Pumps
11-09-2023
Viking Pump invented the internal gear pump in the early 20th century; but did you know that we carry various other pump technologies? Most of them are easily identifiable based on their shape. But one common mistake… read more.
Chad Wunderlich
Distributor Development Manager

7 Essential Tools for Pump Repair
10-09-2023
Like any job, you need the proper tools to do it well – and the same is true for repairing or servicing positive displacement gear pumps. Below are helpful hand tools that Viking's pump experts recommend having ready for… read more.
Chad Wunderlich
Distributor Development Manager

5 Reasons to NOT Settle for Imitators
06-30-2023
Having a great product, with a great reputation, and being a technology inventor like Viking Pump®, positions you as a market leader with high visibility. As such, other internal gear pump manufacturers naturally want to follow in your footsteps. While that is a huge compliment, it also causes confusion among internal gear pump buyers.
In this article we'll walk through 5 reasons you'…
Chad Wunderlich
Distributor Development Manager

7 Things You Want to Know about Flanged Ports, but are Too Afraid to Ask
01-05-2023
Flange standards used on Viking pumps have been in place for over a century so EVERYONE should be experts on this now…right? It turns out not so much. There are various standards and various design differences in each standard. AND the standards have evolved over the years, leading some to use obsolete terms which only compounds the confusion. The following should help clear up some of this…
Chad Wunderlich
Distributor Development Manager

PUMP CAVITATION: THE SYMPTOMS, CAUSE, DIAGNOSIS, AND CURE
09-14-2022
Customers don’t ask me to listen to quiet pumps. This is symptom #1 of a cavitating pump. The pump is loud. Descriptors like “growly”, “rumbling”, or “gravelly” are used to describe the atypically loud sound coming from the pump.
“Does it always sound like this?” I ask.“No, it was fine in the fall, but it’s been loud all winter.”
Chad Wunderlich
Distributor Development Manager

Current and Flow: An electrical engineer’s guide to the concepts of fluid systems
02-17-2021
Unlike most of my colleagues I didn’t start out with a mechanical background. While they were studying kinetics and machine design, I was studying digital electronics and industrial power. When I started my career in the world of pumps, I had to learn a whole new set of concepts. What was surprising was that while the terminology may be a bit different, the concepts are…
Chad Wunderlich
Distributor Development Manager

Chemical Transportation Company Saves Time with RTPe Series™
01-15-2021
With today’s fast-paced supply chain demands, it is essential that tanker truck systems can unload contents quickly to ensure timely delivery for optimum manufacturing efficiency. Stony Run Enterprises Inc., a family-owned trucking enterprise located in Hamilton, Ohio, understands this sense of urgency with its commitment to transport multiple types of products with “speed,…
Chad Wunderlich
Distributor Development Manager

Fear of the Gear
01-05-2021
In the world of positive displacement pumping, reduced speed operation is a common requirement. High viscosity liquids, shear sensitive liquids, abrasive liquids, or any combination thereof require the pump speed to be reduced from synchronous motor speeds.
Chad Wunderlich
Distributor Development Manager

It Flows Both Ways: a guide to running an internal gear pump in reverse
12-03-2020
One of the biggest limitations of a traditional centrifugal pump is its inability to reverse the direction of flow. By design it can only be run in one rotation and one direction of flow. Liquid enters the eye of the impeller at the suction port (typically on the front of the pump), is pushed out radially, and exits the pump at the discharge port (typically on top of the pump…
Chad Wunderlich
Distributor Development Manager