We have received several inquiries over the years for nozzle type flanges, commonly referred to as “long weld necks.” These types of flanges and the different varieties in which they are offered are meant to replace pipe, not weld up to it, and as such we would like to clarify for everyone in the industry that these items do not have schedule bores. A typical weld neck flange has a weld prep at the tip of the neck to weld up to matching pipe, whereas long weld neck flanges, or “nozzles,” are square cut at the ends for the purpose of utilization with your tank or alternate assembly. As such, many inquiries which we receive include schedule bores that we eliminate in our quote reply to our customers, as these schedules are not applicable.

Our nozzle flanges are available in the more common lengths of 9”, 12”, and 16”, as well as any larger or smaller overall lengths to suit your needs. Typically, the larger the nominal size and pressure class flange, the larger the overall length requested. However, this is entirely subjective and at the discretion of the customer. Contrary to popular suggestion, there is no universal “standard” length because these parts are made in accordance with the application necessary. We offer a variety of barrel sizes, from the more familiar long weld necks, heavy barrels, and equal barrels. We also provide intermediate barrel products depending on your needs. As most regular weld neck flanges, these nozzles are typically made from forged carbon steel and stainless steel grades, though we do get the occasional request for chrome alloy and nickel alloy nozzle flanges. Feel free to submit your own technical drawing for quotation to our sales department and we would be happy to help get you the flanges you need.