Radiator valves, no lock shield?

[Sweeney3415]

Hi,

I’m a little confused with my radiator set up. I have one radiator that doesn’t get as hot as others. I was looking into balancing the system but my radiators don’t seem to have a lock shield valve. I seem to have both a manual and a TRV? I’ve attached 2 photos of the same radiator

Is this normal? It’s a new system fitted just over 12 months ago.

Can I balance my system?

 

[terryplumb]

The wheel head is the lockshield. Just has the wrong plastic top.

 

[Sweeney3415]

The wheel head is the lockshield. Just has the wrong plastic top.

If this was a lock shield shouldn’t turning the plastic top do nothing? Both ends will turn the radiator off if I turn them.
Sorry, completely new to this and have gotten all my knowledge from a google how to guid for balance radiators

 

[terryplumb]

It should have a domed shaped plastic top that doesn't actually turn the valve on or off when you turn it. Nevertheless it's used to balance the rads,it's the same valve under the cap.

 

[Madrab]

If this was a lock shield shouldn’t turning the plastic top do nothing?

Radiator valve kits sometimes come with 2 tops for the turn valve, as suggested by @terryplumb they just haven't put the correct top on.

If you're really bothered pull the plastic top off and look into it, you'll see a slot that fits the top of the valve spindle, get a drill and make it round, it won't turn the valve off any more