Replacing lockshield with trv

[Sanjay29]

Hi

I am planning on replacing my lockshield valves on my rads with trvs.

Just wondering if the pipes for the rads will need adjustment or will they fit straight on ?
Or am I better to take the tails off the rad to a merchant and get like for like.
Also best value trvs please
Thanks

 

[motorbiking]

It depends how old the system is. It might be worth a bag of imperial olives just in case.

 

[Harry Bloomfield]

I swapped my lockshields for TRV4's I'd had in stock for a few years, a couple of years ago. They were a straight swap, no adjustment or change of anything needed.