Replacing pressure vessel valve

[Marnhullman]

I have a seized valve on my c/h pressure vessel. Do I need to drain the system to replace the valve?

Thanks

 

[Millwright]

Is this the pressure relief valve? If so, then yes.

 

[Madrab]

Is it the schrader valve on the expansion vessel?

Please clarify what valve you are talking about.

 

[Scally-Ho]

Photos?

 

[Marnhullman]

Apologies for not replying sooner.

I'm not at the property so no photos. It's one of the isolating, half turn valves. Its a 15mm compression fitting so should be easy enough to actually remove but the system is full of water so I was wondering whether it's possible to do the job without draing down which would be difficult as it's a second floor flat.

Someone suggested I could just turn off the stop cock and release the pressure in the pressure vessel? I'd like a second opinion as to whether that would work?

Thanks

 

[Scally-Ho]

If the valve is one of these (with or without handle), then only 1/4 turn is required. A half turn will open it again.

Flume Isolating Valve Handled

• WRAS Approved

www.toolstation.com