Lockshield replacement

[rbrstr]

Hi
Can anyone identify this brand of circa 1989 lockshields please?
Thanks

662B3FB2-4946-46D8-BF70-178AA73DAFF0

• rbrstr
• 17 Apr 2020

33FEBD86-2EF0-494D-BB5F-2C6C1D9D1CDB

• rbrstr
• 17 Apr 2020

 

[denso13]

Looks like a Conex nut but I don't know if they made lockshields. You looking to change it?

 

[rbrstr]

Yes, they were turned off for decorating, and now leak in the open or closed position, I don’t want to rip open a grands worth of decorated lounge to access the pipe work properly to I’m looking to replace just the internal threaded insert part of the lock shield

 

[denso13]

You won't find just the internal parts, perhaps try repacking the valve. The video below is for a stopcock but the same repair applies.

 

[Madrab]

If it's a combi boiler, then shut down all the rads at both ends, release the system pressure and you will probably be able to replace the valve with minimal water loss.

I would recommend native 10mm valves or internal 10mm reducers that use an olive not the 'snap' type, be prepared to cut off and replace the old olives and nuts.