Abstract: An integral nozzle with a section of pipe having a weld end and a flange end. Proximate the flange end there can be a thickened section to strengthen and stabilize the integral nozzle. The wall thickness of the section of pipe can be less than a standard size, such as schedule 40 or schedule 80 pipe, thereby reducing the weight, overall circumference of the weld end, and required material to make the integral nozzle.

Abstract: A pressure vessel pipe connection selector is disclosed. A pressure vessel may require various connections or nozzles for connecting to a pipe. A selector device includes all necessary data for a user to input design requirements for a pressure vessel pipe connection, and for a specific subset of relevant outputs to be displayed. The relevant outputs can be compared to a list of pressure vessel connection abbreviations or identifiers that can then be used to choose a specific pressure vessel connection that is appropriate for the user's design requirements.