Single pipe CH system - can you get manual full bore valves?

[crj80]

Hi,

I've recently purchased a 1960's house with a single pipe system installed. Common issue - the rads don't all get hot!
Over the years, TRV's have been installed on all rads, which look like the standard type (reduced bore, not full bore).

I want to give the old system a chance, and replace the older rads along with all the valves, and give the rads I want to keep a good flush out.

Question is... I've read that I need full bore valves for the system to work properly. Can you get standard manual full bore valves, or are all manual valves the same? I don't want to put TRV's back on.

Many thanks

 

[Dan Robinson]

Why wouldn't you put high lift TRVs back in?

 

[crj80]

Hi Dan,
I've had TRV's on my systems in other houses, and i've always ended up leaving them all open - so can't be bothered with the extra expense to be honest!

 

[Dan Robinson]

Glad I'm not paying your gas bill then

 

[crj80]

TRV's may be a possibility on some, but not on all rads.
Do you know if there is such thing as full bore manual valves? Or will standard ones do?

Cheers

 

[Dan Robinson]

There are although the name escapes me.

 

[crj80]

What about these - they are called 'Fullflow' but don't actually state full bore opening??
http://www.myson.co.uk/products/fullflow.asp

 

[Agile]

There are many different configurations of one pipe systems installed.

What is and is not possible depends on the exact type that you have fitted.

Tony

 

[Nige F]

Crane rad valves ?