Systems and methods for cooling moving molds

A method of providing a mold cooling system for cooling a polymer product shaped in a mold, the method comprising:

• casting a passageway into a first semi-circular mold configured to mate with a second semi-circular mold, the first semi-circular mold having a corrugated inner mold surface that defines a cavity, wherein the corrugated inner mold surface defines a plurality of corrugations for forming a polymer parison into a corrugated pipe, and wherein a plurality of web members are disposed between adjacent corrugations of the corrugated inner mold surface;
• affixing one or more sealing members to the plurality of web members to define a plurality of vacuum chambers disposed in communication with the cavity for drawing a vacuum on polymer extruded into the cavity;
• providing a mold housing with a connector configured to receive a cooling fluid supply and a cooling fluid return of a moving manifold;
• and
• positioning the mold housing in sliding engagement with the moving manifold;
• wherein the passageway connects the cooling fluid supply and the cooling fluid return when the moving manifold is received in the connector;
• wherein the passageway includes a plurality of cooling tubes cast into the mold housing between adjacent corrugations.