Pressure Relief Valve

Reply

  #1  
Old 11-20-08, 08:14 AM
R
Member
Thread Starter
Join Date: May 2007
Posts: 7
Received 0 Votes on 0 Posts
Pressure Relief Valve

The pressure relief valve on my hot water heating system boiler keeps blowing off from time to time, discharging a few ounces each time. It does not drip and shuts down completely. What could be the problem? Should I replace it?
 
Sponsored Links
  #2  
Old 11-20-08, 03:20 PM
NJT's Avatar
NJT
NJT is offline
Member
Join Date: Oct 2006
Location: USA
Posts: 23,539
Received 3 Votes on 2 Posts
Should I replace it?
I think it's a good idea to routinely replace them ... say five years or so...

but, I doubt that's the problem with the discharge, it's probably doing what it's designed to do, and that is to relieve pressure over 30 PSI.

Can you tell us what the pressure and temperature gauge on the boiler is reading? Take readings on a cold boiler, and when the water temperature is hottest.

Tell us a bit more about the boiler ... can you describe the expansion tank ? It may be two types, one looks like a propane can from a gas grill, and may hang on the pipe. The other is bigger, and would be found strapped into the ceiling joists above the boiler.

Pictures would help ... free account ... Image hosting, free photo sharing & video sharing at Photobucket ... upload there ... post a link here ...
 
Reply
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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


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