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

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!

Check Valves Guides


Check Valves are used in a wide variety of liquid handling applications to keep flow going in one direction. The primary reason for using check valves in liquid transfer systems is to prevent backflow from occurring. Another reason for using check valves is to eliminate cross contamination in piping systems with multiple products.

Check Valves are made from many materials including bronze, ductile iron, stainless steel, polypropylene, PVC and more. The most common type of check valve is the ball check design; it consists of a ball that is pushed against a "seat" material by a spring when flow is stopped in the primary direction. Other common types of check valves include single disc or double disc designs; these types also include a spring that pushes the disc(s) against a seat material when flow is stopped.