Radiator Valves

fxrgrunt

What's the current method for removing spuds from radiators that had the two tabs shear off? 

Lard

Use a saw or cutoff wheel to split the union nut and remove it.  This gives you a spot to grab the spud with a pipe wrench.

If it will not budge, carefully saw 3-4 parallel grooves inside the spud, being careful to not cut into the radiator threads too much.  Hammer/chisel each segment out.

Pipe dope will take care of the minor grooves that end up in the threads.

JohnNY

It's called a caping chisel and it's a bit of a delicate process.
https://www.amazon.com/Mayhew-10400-8-Inch-Cape-Chisel/dp/B000K1JQVI/ref=sr_1_3?dchild=1&keywords=cape+chisel&s=hi&sr=1-3

SteamingatMohawk

JohnNY this is what I want to avoid, if possible. I've collapsed fittings in the past with reasonable success, but it's not worthwhile in my case if I can just replace the disc.