Appliance Market - Dishwasher Check Valve

The Challenge

Supply a two-material check valve.

The Solution

Several problems with the supplied tool had to be resolved. First the hot runner system of the tool needed refurbishment of the tips. Second the tool needed to be adapted from a vertical to a horizontal 2nd barrel configuration. Lastly the mold utilized a mechanism to rotate the cores from the Acetal side to the Santoprene side. This system used a water coupling that leaked several ounces of water during each molding cycle. We developed a system to evacuate the water before mold open and then continue water flow after mold close.

The Benefits

The customer’s original supplier was unable to consistently supply quality parts. After solving the tooling issues we supplied these check valves reliably until it was obsoleted by a revised design that was awarded to APC.