Replace a rad bleed valve?

[staro30]

Hi,

I have a rad which needs bleeding virtually every week! (image in my album) It's a self bleed valve, I believe, which is not self bleeding anymore. Undoing the flat head screw does not any longer release the air. I have to use a spanner on the nut where the holes are.

This rad did not need bleeding as much when it was able to be self bled via the flat head screw.

Will replacing the whole bleed valve solve the problem?

Thanks
Staro

 

[duffin]

yes you can get the whole valve- something like toolstation 45273 but why does it keep filling with air? have you tried lighting the gas?

 

[staro30]

Lighting the gas! I don't know what that means!

Not sure. As said, it never used to need bleeding as much when it bled from the flat screw when undone. I'm blaming the whole valve but it could be something completely different.

Cheers

Staro

 

[ChrisR]

The self bleeders block up for a pastime.

The "air" is likely to be a corrosion product - hydrogen. We see scorched curtains..
Addressing the corrosion, is a longer answer.