About the 4 Inch Mechanical Joint x Mechanical Joint x Flange Tee Fitting, Ductile Iron
4 Inch Mechanical Joint x Mechanical Joint x Flange Tee Fitting, Ductile Iron. This particular fitting is a Tee Fitting for Ductile Iron Pipe applications that features Mechanical Joint and Flange connections. A tee is an important fitting as it is used in order to connect three sections of iron pipes allowing you to connect two different pipes into one. The fitting gets its Tee name from its shape as it resembles the letter “T”. All three of the connections on the tee fitting measure 4 inches nominal size, making it for use with 4 inch Ductile Iron Pipe. If you were to look at this tee head on in a “T” shape the connections on either side are mechanical joint connections and the middle connection is a flange connection. The mechanical joint utilizes a nut and bolt system, and depending on the size of the pipe, there will be more bolts required for a secure connection. Ductile Iron Pipe systems are most commonly used in the transportation of potable water, but are also used for waste water applications as well.
