what is this engine part called?

Hi all,

Trying to track this part down but no luck with guessing what its called,anyone got the technical term?

(i nicked the photo off the vw heritage brochure) 



 

One of these ?  dont know its technical term but its a one way valve..

thats the badger, i need one so need to know what its called to find one lol

I could well be wrong, but i doubt its possible to find a new one, if a used one will do make me a stupidly high offer ( because it means wrapping it, getting the car out to drive to the next village etc.) and i can sell you one, i have another one or 2 where the pipe to the servo hasnt been cut, the other pipes are easily removeable.  I will do a photo..

https://www.classic-vw.co.uk/vacuum-valve-servo---inlet--191611933e-12479-p.asp

Try this


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ill dm you

brake servo valve by looks, might be able to get a mk2 one and add a basic t piece before hand to get the same result