What is this valve called? How can I replace it?

[WannabePlumber]

Hello,

I am very new to plumbing, so I an sorry if my question seems silly.

In our bathroom we have this valve which keeps leaking it is very old like it was installed in the 70s now I want to change it but I do not know what it is called and what specification it is.

Can you tell that what it is and how do I change it?

 

[Geofd]

Looks like the copper is also kind of buried you would have to chip out around the copper and the valve remove and replace
I would not try to rebuild it, it looks to far gone

 

[WannabePlumber]

Looks like the copper is also kind of buried you would have to chip out around the copper and the valve remove and replace
I would not try to rebuild it, it looks to far gone

But I do not know where the valve starts?

Is it the bulb holder kind of thing where the rotational wheel is, is where the valve body starts?

And what tool can I use to safely remove it so that it doesn't damage the GI pipe which is engraved in the wall halfway.

I have a wrench only right now. If I know the whole body of valve and where to twist it by force I may be able to pull out the copper valve safely and replace it.

 

[CT-18]

You need to open up the what looks like concrete to be able to get that valve cut out so it can be replaced. You will not be able to unscrew it until you break the connection on one side. If that is a screwed and not soldered valve

 

[Geofd]

But I do not know where the valve starts?

Is it the bulb holder kind of thing where the rotational wheel is, is where the valve body starts?

And what tool can I use to safely remove it so that it doesn't damage the GI pipe which is engraved in the wall halfway.

I have a wrench only right now. If I know the whole body of valve and where to twist it by force I may be able to pull out the copper valve safely and replace it.

This is probably out of your comfort zone, and should be addressed by a professional