Plumbing Forum - Professional & DIY Plumbing Forum > General Plumbing Discussion > General Plumbing Help > Radiator Doesn't Quite Fit Valve

Help Support Plumbing Forums by donating using the link above or becoming a Supporting Member.
Thread Tools Display Modes
Old 01-13-2011, 11:20 PM   #1
Junior Member
Join Date: Jan 2011
Location: Oak Park, IL
Posts: 1
Default Radiator Doesn't Quite Fit Valve

Recently a valve on one of our radiators cracked and began leaking steam. So I tracked down a pipe wrench and a 5' length of pipe for leverage and was able to detach the radiator from the valve, and the valve from the pipe. The 1 1/4 replacement valve from the hardware store fits the pipe perfectly, but doesn't quite match up with the radiator. The threading is on the valve side, and there is a threaded collar on the radiator—it is just slightly too big to tighten onto the valve (about halfway through tightening it sort of pops and loosens).

The valve came with a new collar, but I am entirely unable to detach the old collar from the radiator. It doesn't seem to be a part of the radiator, but even with 5' of leverage I'm entirely unable to budge it.

My makeshift solution was to build up enough teflon tape on the valve side and tighten that way. Honestly, it worked alright for about 2 cycles of the radiator and then began leaking a bit.

The radiator is from the 20s and replacing it isn't really an option. Is there an adaptor I can use to step down? Some other type of tape possible? I have a micrometer, so I can measure accurately if necessary.


pselbert is offline  
Reply With Quote
Old 01-19-2011, 09:09 PM   #2
Junior Member
NotAnotherRep's Avatar
Join Date: Jan 2011
Location: London UK, London
Posts: 11

for a long term answer you need to get that collar out of the radiator, you will never find adaptor they are 100's of valve manufactures and they tend to use slightly different nut sizes to force you to buy there brand. To remove it just takes time and the right tool. Firstly apply heat to the collar with a gas gun and get your pipe wrench out again. If this does not work try buying a radiator spanner there not expensive a couple of ££'s this fits inside the collar again with heat and your 5' length of pipe this will move it.
Be careful not to pull the radiator off the wall
hope this helps
NotAnotherRep is offline  
Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Moving old iron radiator pipes. Need advice. jderosa3 General Plumbing Help 1 04-19-2012 12:11 AM
Steam radiator issue... theskunk General Plumbing Help 1 01-21-2012 01:02 PM
New radiator not working, please help Yardley Water Heaters and Softeners 18 10-12-2011 12:40 AM
Steam Radiator jchiz General Plumbing Help 6 07-25-2011 10:03 AM
replacing cast iron radiator supplys WilliamBonetto General Plumbing Help 1 07-26-2010 04:37 PM

Newest Threads