Is this an automatic HW air vent ?

[grizzlybiker]

I have what I assume is a vent mechanism that bleeds the hot water system of air locks (rather than for the CH) and it is just by the side of my hot water cylinder above my gas boiler.

Does this bleed and get rid of any airlocks automatically or do I have to do anything e.g. jab a skewer done the hole after I have removed the black plastic valve cap ?

Here is a picture with the black cap temporarily removed:



http://s630.photobucket.com/albums/uu28/headache5678_photos/?action=view&current=IMG_5023.jpg

Thank you


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[45yearsagasman]

That is a normal automatic air vent and the cap should be replaced but not tightened down.(Its a dust cap and is left loose)Air is vented automatically.It is attached to your cyl flow pipe and will remove air from the pipe upstand as and when it collects there.

 

[headache56]

Thank you, excellent news. Cheers