This Dixon TR series flange is used for joining two pieces of pipe or connecting valves in a piping system. It has a threaded lap joint with bolt holes for connecting to other bolted flanges or flat surfaces. It is made of stainless steel 316 for higher strength and greater corrosion resistance than stainless steel 304. This fitting has a maximum operating pressure of 150 pounds per square inch (psi) and meets American National Standards Institute (ANSI) Class 150 for quality assurance. Suitable for use in air, water, oil, natural gas and steam applications.