Bleed valve design i have not seen before

[andyplumber2009]

Hi
Just putting a new rad onto my existing system, swapping the one on the en suite.
Got a nice one made by "antrax-it" but before i do the valves i have noticed the bleed valve looks nice but does not look like the normal ones.

It has 6 small holes in the top that i assume swivel open and shut to let the air out. But
- am i correct?
- is there a special tool that i should use?

Much appreciated
Andy

 

[Stigster]

Sounds like an automatic bleed vent. You can't manually open the ones I've seen. They just vent any air and then close themselves (usually).

 

[andyplumber2009]

quick google search under images and yes, 1st image is exactly what i have.
Brill, thanks for the quick reply

 

[Stigster]

'Twas a pleasure. I remember the first time I saw one and had to ask the boss the same question you just did.