For handling the temperatures while passing the liquids, Union crosses are installed in industries. These crosses are called four-way pipe fitting and are precisely engineered for handling extreme pulsations and vibrations. Manufacturers design sturdy union crosses because they are the center of every pipeline setup. They are created using different metals like stainless steel, iron, brass, and alloy. Union crosses can be installed in the gas-pipeline setups as well for controlling the main supply of a particular area.