Dultmeier Sales will be closed Thursday, November 22nd and Friday, November 23rd in observance of Thanksgiving

Dultmeier Sales will be closed Tuesday, December 24th at 12pm and all day Wednesday, December 25th.
Normal operations will resume Thursday, December 26th. We wish you and your family a very Merry Christmas!

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

Dultmeier Sales will be closed Thursday, July 4th and Friday, July 5th in observance of Independence Day.
Normal operations will resume Monday, July 8th. 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

Plunger Pump Mechanics, Maintenance, Troubleshooting | Video

General Pumps demonstrates how to completely service and diagnose almost any plunger pump. Many plunger pumps share the same basic design, so actions shown in the video are applicable to most plunger pumps. The video includes how to disassemble and reassemble a plunger pump completely, how to inspect each individual part, how to service and repair those parts, and how to diagnose problems with your plunger pump.

Plunger pumps are a type of positive displacement pump that operate by expanding and contracting a cavity withing the pump. First, the cavity is expanded as a plunger rod moves away from it. This opens an inlet valve which introduces a fluid into the cavity. Then, the cavity is contracted as the rod moves back in. This closes the inlet valve and opens a discharge valve. The water in the cavity is pressurized and exits the cavity through the discharge valve.