Removing pipe from this valve

[AllThegearnoidea]

Hello this is 10mm pipe how do I remove this from the valve? Does it literally just pull out? Reason being I want to add a JG speedfit coupler to extend the pipe work for a bigger radiator. Is this a system drain down or can you do it live?

 

[ShaunCorbs]

Need to push the white collar in and the pipe should come out

Drain down

 

[AllThegearnoidea]

Need to push the white collar in and the pipe should come out

Drain down

Thanks for your reply mate much appreciated