Packless radiator valve

AMservices

Any information on these packless radiator valves?
I found a few to be leaking. if I can fix them I would like to, if not I would like a suitable replacement.
Thank you.

Fred

That hex nut, in your first picture looks like it is cracked from the valve stem down to about half way across the surface of the nut/cover. Is it leaking from that crack?

AMservices

I only noticed it leaking out of the valve stem.
Good catch. I'll inspect that next time I'm there. I'm going to just open it up and be ready with a new valve.

Jamie Hall

AMservices said:

I only noticed it leaking out of the valve stem.
Good catch. I'll inspect that next time I'm there. I'm going to just open it up and be ready with a new valve.

Problem. Those valves have a union which is matched to the radiator spud. If you were to replace only the valve, the odds on getting the new valve half of that union to match the old spud half are pretty low, and it will leak.

AMservices

Jamie Hall said:

AMservices said:

I only noticed it leaking out of the valve stem.
Good catch. I'll inspect that next time I'm there. I'm going to just open it up and be ready with a new valve.

Problem. Those valves have a union which is matched to the radiator spud. If you were to replace only the valve, the odds on getting the new valve half of that union to match the old spud half are pretty low, and it will leak.

I've been down that road.
Thankfully new valves come with new spuds.

This is what I found on the sylphon valve.
Weird looking "S".

Fred

Probably only to the original Home owner though. LOL