Pegler Terrier Lockshield Valve 15mm
Bought these as replacements where I had removed existing rads for decorating, slightly pricey.
Ok so the originals had been in for 16yrs, the drain off screw plug was seized up, when I eventually freed it and drained off. I then refitted and refilled it, and started leaking out of the top of the drain off.
Hence buying the replacements.
This may be a common issue, but the actual idea is good.
18 Nov 2014
Pegler Lockshield Valve
I have used this product before.
It is solidly built compared to cheaper brands.
10 Nov 2014
Great idea, Disappointing
I thought this was a great idea. I fitted one a couple of years ago. Recently I came to change the radiator, and tried to drain it. I could not make it budge, and have now only succeeded in rounding off the square drive (using a brass radiator key).
Eventually I drained the radiator in the time honoured way by loosening the union connector.
Even after removing the valve I can't get the drain plug to move, despite 24 hour soak in WD40. There's no sign of corrosion, no lime-scale (this is a soft water area).
21 Nov 2013
Needs non-standard key
Warning - the drain-off spigot size is 4.5 mm! A standard rad key (5 mm or 5.1 mm) is loose but will work when the valve is new.
I have one of these fitted. I needed to drain off about 5 years after installed, and found it jammed too tight for a standard key to open. A 4.5 mm clock key (available on line) fits perfectly - get a steel one if the valve is really jammed as it will break a brass key.
The new Pegler fitting I bought to replace the jammed one has the same size spigot, so they're still non-standard.
4 Nov 2013