Old Angled Lockshield Valve? How to close?

[chris1982]

Hi, I want to fully turn off an old towel radiator (so that I can replace the bleed valve), so I want to close the TRV (easy) and an odd looking lockshield valve (not sure how).
The valve is a type I haven't seen before, and I am not even sure it's a valve or a drain point. It's angled (see photo 1), has a white plastic bit (cover I suppose) that is held in place by a Philips screw (see photo 2).
How do I close it?
Thanks a lot in advance!

 

[copea]

Unscrew the screw, pull the plastic cover off, get an adjustable wrench and turn the spindle in clockwise until it stops turning.

 

[AGAS]

like any other lock shield

 

[chris1982]

Great. Thanks, so that screw is just holding the cover then?

 

[denso13]

Great. Thanks, so that screw is just holding the cover then?

Yes

 

[chris1982]

Thanks!

 

[oldbuffer]

Count the number of eighths of a turn to close, so that you can open up to the same point when you have finished. This way, the system stays in balance, or at least as balanced as it was, before the work.

 

[D_Hailsham]

Count the number of eighths of a turn to close

Twelfths are normally easier as the spindle is normally surrounded by a hexagonal nut.

 

[chris1982]

I will count. I am aware of the balancing issue.

 

[Aquaheat]

Twelfths are normally easier as the spindle is normally surrounded by a hexagonal nut.

I prefer 36ths as it provides higher accuracy. I've found that 72ths is over kill and achieves very little more.

OP just keep an eye on how many turns/half or quarter turns it is to close and you'll be reet. Pi55ing about with 12ths of a turn will get you nowhere fast. If the system is that critically balanced you have greater issues.

Jon

 

[chris1982]

All done and good I think. Thanks again.

(I counted 13 "turns" from spanner at the bottom of the towel rail to the floor, plus one additional eight turn)

 

[dilalio]

Has to be 1/4 turns cos that’s how far you can usually go before wrench hits the rad

Edit: Or floor !!!

 

[gasbanni]

Has to be 1/4 turns cos that’s how far you can usually go before wrench hits the rad

Edit: Or floor !!!

You bloody clever dick !!!