Interface control document. An interface control document (ICD) in systems engineering and software engineering, provides a record of all interface information (such as drawings, diagrams, tables, and textual information) generated for a project.
How well do you know your pipe flanges? Remember that flanges come in a variety of shapes and sizes to suit different applications. A flange is usually in the shape of a disc and is used to connect two tubes together or to connect a pipe to a valve, tee, choke or other component. Providing support and strength, two flanges are typically attached to pipe ends with a gasket in between.
The drain flange is threaded into a piece called a drain shoe. Underneath the tub drain flange will be a good amount of plumber's putty to seal the inside of the tub drain, and a rubber gasket underneath the tub to seal the drain flange to the tub.The tub drain flange screws into the drain shoe.ith the old drain flange removed, be sure to clean the area around the drain thoroughly to remove any old putty or buildup. Allow the area to dry before installing your new drain flange. Step 2: Underneath the tub will be a rubber gasket that creates a seal for the drain shoe.