Dultmeier Sales will be closed Thursday, November 26th and Friday, November 27th in observance of Thanksgiving

Dultmeier Sales will be closed Thursday, December 24th at 12pm and all day Friday, December 25th.
Normal operations will resume Monday, December 28th. We wish you and your family a very Merry Christmas!

Dultmeier Sales will be closed Friday, January 1st in observance of
New Year's Day

Dultmeier Sales will be closed Monday, July 5th in observance of Independence Day.
Normal operations will resume Tuesday, July 6th. 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!

Close-Coupled Straight Centrifugal Pump Seal Replacement | Video

This video demonstrates how to dismantle part of a centrifugal pump and replace the mechanical seal on the centrifugal pump. This includes removing the impeller from the pump, removing and replacing the mechanical seal, and reinstalling the impeller and reassembling the centrifugal pump.


Centrifugal pumps work by rapidly spinning a rotor, called an impeller, inside a case. Fluid is then introduced into the impeller. The fluid moves towards the edge of the impeller, called the vane, and then is forced through a suction port to the exterior of the casing. From here, the fluid exits a discharge port, where the centrifugal force the fluid received from the impeller is transferred into pressure.

How does a centrifugal pump work?

The mechanical seal on a centrifugal pump is most often used to seal the drive shaft entry point into the impeller housing. This stops fluids, typically under high pressure, from escaping out of the impeller housing. This is done by rubbing a carbon seal, attached to the mechanical seal, against a ceramic seal.