Sole UK manufacturers of replacement Tamper-Proof Safety Tops for all radiator valves...
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Fits all known domestic valves up to 15mm (½")
Supplied in two forms
This form has all of the like components packaged together.
This form has all of the components to service one radiator packaged together.
each bag is printed with fitting instructions.
Select drive disk that matches the valve spindle. (File spindle if necessary).
Place disk inside cap and push fully home on to drive pegs. If using Disk No 4, fit only as shown in detail 4.
If required, use extension collar to obtain snug fit.
Position cap over spindle and rotate until disk engages.
Gently tap the top of the cap down until firmly seated.
Fit as above but do not fit a drive disk.
Wheelhead valves are for manual control of radiators' (on/off) and are fixed on the 'flow' pipework.
Lockshield valves are for regulating the amount of water that passes through the radiator and are fixed on the 'return' pipework. They are Not required for manual control and should be left in pre-set position.
Identifying the wheelhead and lockshield valves if both tops are missing from a radiator and your heating system is on, turn it off (at your control switch) and leave until radiator/pipework is COLD. Then turn the heating system back on and whichever pipework (leading directly to the valve) is the first to get hot is the Wheelhead valve.
Optional accessories collar, for use with valve measurements up to 22mm. 4 Drive Discs, for wheelhead valves ONLY. One disc MUST be used.
Top removal, as the valve tops are tamperproof, use a pin hammer to tap off the top. Replace with a new top.
IMPORTANT do not fit replacement tops on leaking valves.
Wheelhead for a measurement of 21mm and under, use the collar with the 'lip' at the bottom. For 22mm use the collar with the 'lip' at the top. For 23mm discard the collar. For measurements over 23mm a commercial top is required.
N.B. for valves with tall bodies, leave collar slightly visible for better coverage.
Lockshield if using collar, push collar into the top. Push top down onto spindles and lightly tap with a pin hammer until firmly down.
Should you encounter any problems please don't hesitate to contact us.