An expander flange, sometimes referred to as an expanding flange or flange expander, is a mechanical component used to connect pipes or tubes of varying diameters. It allows for a smooth transition between different pipe sizes, ensuring a proper and secure fit.

Ah, a High Hub Blind Flange—that makes more sense in an engineering or industrial context!

In piping and mechanical systems, a blind flange is a type of flange used to close the end of a pipe or pressure vessel. It is called “blind” because it does not have a central hole for flow; instead, it’s solid, which makes it ideal for sealing off a section of the system.

A high hub blind flange typically refers to a blind flange that has a higher hub height. The hub is the part of the flange that extends back from the flange face and helps in aligning and supporting the pipe. A higher hub provides extra support and can be beneficial in systems where additional strength is needed.

If you’re working with or specifying these components, make sure to check the relevant standards and specifications for your application to ensure compatibility and proper installation.