Temperature range from -868 to 1472 degrees F/-500 to 800 degrees c. Black Pipe Fittings - 2-1/2 x 3/4 NPT Hex Bushing, 150# UL/FM This Beduan reducer hex bushings are pipe fittings used to connect pipes of two different sizes. Maximum working pressure of 2800PSI. Pack Of 2 Bushings Beduan Stainless Steel Reducer Hex Bushing, 2" Male NPT To 3 Stainless Steel Hex Bushing This reducer hex bushing for connecting pipes or fittings with different end types, diameters, or materials. Beduan Stainless Steel Reducer Hex Bushing, 1" Male NPT to 3/4" Female NPT, Reducing Cast Pipe Adapter Fitting When purchasing pipe fittings, consider the application, as this will affect material type, shape, size and required durability. Pipe fittings are components used for connecting, terminating, controlling flow, and changing the direction of piping in many different industries.