With Viking pumps the answer is usually “yes,” but before you turn that “reverse” switch on your pump’s motor starter or variable frequency drive, there are a number of things to consider, which are discussed here

All positive displacement pumps work by first expanding a cavity between the casing and one or more moving parts to create a partial vacuum, so atmospheric pressure can force liquid into the pumping chamber through the inlet port… read more.

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.

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'll want to stick with genuine Viking Pump parts and products, saving you time, money, and a headache. 

Viscosity is a measure of a liquid’s resistance to flow. And you don’t need to work in a laboratory to observe this. Anyone who’s spent any time in the kitchen has observed a variety of liquids with a wide variety of viscosities.

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 confusion as well as give you a resource to help answer questions for others.

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.”

Millions of homes around the world are fitted with water heating devices such as boilers or water supply heaters. Should they overheat, pressures can rise internally until the tank ruptures. Though extremely rare, this does happen and can even propel a water heater like a rocket through the floor and roof of a dwelling. So how can we sleep peacefully each night with the knowledge that a potential catastrophe lurks in the basement?

It’s typically impossible to see inside pipes and tanks.

Industrial pipes are usually steel or stainless. Even the occasionally used PVC is typically opaque.

But on the day of this customer visit, they had a sight glass placed in a horizontal run of pipe which permitted a peek inside. Normally this glass was used to inspect the color and clarity of the product flowing by. But today the customer and myself were fixated on...

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 very similar.  Think of the following as a “Rosetta Stone” for translating the common terms and concepts of fluid systems to your more familiar terms and concepts of electrical systems.