Bleeding a Cast Iron Radiator with No Bleeder Valve


  #1  
Old 12-26-17, 06:53 AM
B
Member
Thread Starter
Join Date: Dec 2017
Location: United States
Posts: 1
Received 0 Votes on 0 Posts
Exclamation Bleeding a Cast Iron Radiator with No Bleeder Valve

I am having an issue with a single cast iron radiator where it is not heating up at all. All other radiators are working fine in the apartment. A lot of people suggest bleeding the radiator, however, I can't seem to find any bleeder valve on this kind of cast iron radiator. I have attached a few pictures. Is there any other way I can bleed this radiator of the air that is inside it? I have already replaced the air vent valve but that didn't seem to help with anything. Thank you!


 
  #2  
Old 12-26-17, 07:02 AM
W
Member
Join Date: Feb 2006
Location: USA
Posts: 6,768
Received 31 Votes on 28 Posts
Is the valve open where the pipe comes up out of the floor?
 
  #3  
Old 12-26-17, 06:09 PM
F
Member
Join Date: Mar 2006
Location: Wet side of Washington state.
Posts: 18,495
Received 36 Votes on 28 Posts
That is a steam radiator and you do not manually vent steam radiators. Put a carpenter's level on the top and see if it is dead level or slightly pitched so the end with the air vent is just slightly higher. Then check the valve as noted by Wirepuller. The valve MUST be fully open for heat and fully closed for no heat. Do not try to control the heat by partially opening or closing the valve.

It is possible the "disc" inside the valve has come loose from the "stem" and is not allowing the condensate to drain and also keeping the steam from entering.
 
  #4  
Old 12-30-17, 12:11 AM
steve_gro's Avatar
Member
Join Date: Jan 2004
Location: San Francisco
Posts: 1,092
Received 1 Vote on 1 Post
That vent looks awfully low -- I believe it should be higher up. I can't be sure but it looks like there may be an 1/8" plug closer to the top.
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: