Standard material is stainless steel with other corrosion resistant materials available on request. Styles included: Flanged - for installation between pipe flanges; Flanged Throat Tap - similar to the standard flanged style with the downstream tap machined as a part of the nozzle; Weld-In - a machined ring on the O.D. of the nozzle allows this nozzle to be welded between two sections of piping with the nozzle itself entirely within the pipe; and Holding Ring - nozzle is located within the piping and is secured with an internal ring and pins which are welded through the wall of the pipe.