$2000 FREE FREIGHT PROGRAM is for supplies, repair parts and whole goods. Tanks, pipe, sprayers and other large equipment are not included in this program. Applies to Continental U.S. ground shipments only.

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Dultmeier Sales will be closed Thursday, November 24th and Friday, November 25th in observance of Thanksgiving

Dultmeier Sales will be closed Monday, December 26th.
Normal operations will resume Tuesday, December 27th. We wish you and your family a very Merry Christmas!

Dultmeier Sales will be closed Monday, January 2nd in observance of
New Year's Day

Dultmeier Sales will be closed Monday, July 4th in observance of Independence Day.
Normal operations will resume Tuesday, July 5th. We wish you a happy 4th of July!!

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Customer Pickup Orders: to help reduce exposure for our customers and our employees, if you are placing an order for in-store pickup please call in your order ahead of time or place your order online and pre-pay with a credit card. Be sure to let us know when you plan to arrive. We will have your merchandise ready for you and will greet you outside our facility. Thank you for your help!

How Does a Centrifugal Pump Work? | Video

A brief demonstration of how centrifugal pumps work. While it isn't necessary to understand how a pump works, knowing the inner workings of a pump may help to diagnose problems or prevent damage.

Centrifugal pumps are one of the most common pump types. The most important part of a centrifugal pump is the impeller. This impeller rotates inside a casing. Liquid is introduced into the casing while the impeller is spinning, and the impeller throws the liquid through a suction port to the outside of the casing. The fluid, upon exiting the casing, leaves a discharge port. The velocity the liquid receives from the impeller is then converted into "head", or pressure energy.

Centrifugal pumps are favored so heavily because of their higher flowrate compared to most positive displacement pumps. More importantly, flowrate from centrifugal pumps can be throttled easily with a valve placed into the discharge piping with little pressure buildup. This flexibility allows centrifugal pumps to be used for a variety of pumping applications.

For a more detailed explanation of centrifugal pumps, click here.