Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

This is a question regarding the 'sightglass' fitting that you
posted a photo of.  It is in two pieces, the fitting and a nut(?)
of some sort.  I have a Weeden 34 and those two pieces match the
lower steampipe fitting.  How did you get those two pieces apart?
And, are they that melted mess later in the thread?

Wayne