The original (now unavailable) Pavoni flange was brass, and both of the custom replacements I've seen are in in brass, but I *think* steel would probably work. There was a period where Pavoni was making them in plastic - I think that was when they switched to coarse thread on the boiler. They quit doing that and went back to a brass flange and a stainless steel element. (http://www.francescoceccarelli.eu/La_Pa ... io_eng.htm )TrevorJB wrote:Would there be an issue with having these machined from steel instead of brass? I could pretty easily get a steel one made if it was ever needed, but I'm sure there must be a good reason for the brass that I'm not seeing.
That Francesco page doesn't show the thread pitch. The plastic and later I believe are 1.5 mm, the earlier unavailables and the custom rings are 1.25 mm.