Dunham Packless Radiator Valve Repair

maxx

Does anyone know if the Dunham Packless Radiator Valve can be rebuilt or if there are replacement valvles that look like the original? Most of mine will not turn and the ones that will only move about an 1/8th of a turn.

nicholas bonham-carter

dunham packless repair

i found a crossection of the valve here:

http://www.heatinghelp.com/files/articles/1298/bulletin%20628%20-%20pages%20vertical.pdf

if you can loosen the bonnet of the valve, you may be able to relubricate the inner workings, maybe using non-petroleum plumbers grease.--nbc