$2500 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.

Call for details! 1-888-677-5054


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!!

We are experiencing some technical difficulties on dultmeier.com and apologize for any inconvenience.
If you are running into issues, please phone your order in to 1-888-677-5054

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!

Due to the impending winter storm Wednesday afternoon and Thursday, ASAP Express is cancelling all operations effective noon Wednesday until midnight Thursday.

Self-Priming Centrifugal Pump Seal Replacement | Video

MP Pumps demonstrates how to replace a mechanical seal and set the impeller to wear-plate clearance on an MP Pumps Flomax pump. This procedure may be necessary if there is any leaking around the mechanical seal. This video includes how to disassemble a centrifugal pump, how to reassemble a centrifugal pump, how to inspect and clean important parts, how to replace the mechanical seal on the pump, and how to set impeller clearance on a centrifugal pump.

Centrifugal pumps work by spinning a shaft-driven impeller extremely fast inside a casing. When fluid is introduced to this impeller, the centrifugal force generated by the rotation expels the fluid through a suction port, which leads to the outside of the casing. The fluid then exits a discharge port, and the velocity received from the impeller is then changed into pressure.

How does a Centrifugal Pump work? What makes a Self-Priming Centrifugal Pump different?

Self-priming centrifugal pumps are different from non-self-priming centrifugal pumps in that self-priming centrifugal pumps do not suffer from air binding like a typical centrifugal pump will. Self-priming pumps mix air and water together to do this, creating a fluid that acts much like regular water. Excess air is then removed, allowing the pump to move only water. This happens only during the priming cycle, the process will stop during pumping.