What threads for flexi pope to expansion vessel?

[Luggsey]

Hi all, I need to order a flexible pipe to connect this vessel up with.
The pressure vessel instructions don't mention the thread size? A 22mm pipe almost fits over the threads so I assume it's 3/4 BSP? Does that sound right?
The other end goes to the valve, will a flexi like this:

https://www.NoLinkingToThis/p/hose-...QxfKFvfUaXq5S-QUWthoCaswQAvD_BwE&gclsrc=aw.ds

Work to screw onbthe valve or must I do something else?

Thank you.
Paul.

 

[fowlerboi]

I would hard pipe it as it would take 5 mins and would prevent using a rubber hose at high temps like that but i guess that hose would work if you wanted to take a punt. Take the gate valve off at the nut connecting it to the heating system and then connect the compression end to the pipework, the other end screws directly onto the vessel (assuming it is 3/4" which is fairly standard for a large vessel like that.)

 

[Luggsey]

I didn't consider hard piping it but that makes perfect sense thank you.
👍

 

[king of pipes]

As above hard pipe it and add a drain cock for future maintenance. Kop