List: time-nuts@lists.febo.com
From: Chuck Harris
Re: [time-nuts] 1" 14 tpi UNS die
Tue, Jul 7, 2009 6:35 PM
The US cast iron radiators all use tapered pipe thread, fin coil is almost always
soldered copper, and the steel radiators from Sweden/Denmark/Norway/Switzerland,
and Italy, all have straight pipe thread, and use a Jamb nut with an O-ring.
Runtal, Cordivari, Wirsbro and Wesaunard are examples I have run into.