One valve accounts for the amount of hot water that enters the radiator. The other valve, referred to as the lockshield valve, balances the system by regulating how much heat the radiator gives off.
What are the two valves on a towel rail?
There are two main types of heated towel rail valves. Straight valves should be used when the inlets are at the bottom of the towel rail and the pipes are protruding from the floor. Angled valves will be needed if the water needs to be diverted at a 90-degree angle.
Is radiator valve open or closed?
How to Tell if the Radiator Valve Is Open or Closed? This is a common question, but the answer is dead simple. Turn it all the way to the left, and if it won’t go anymore, it’s closed. Otherwise, it’s some degree of open.
How do you open the valves on a heated towel rail?
The most common method for adjusting temperature will be to adjust the knob by turning clockwise to turn off – I.e. cool or anti clockwise to open and up the heat.
Should both radiator valves be open?
You should open both of the valves on all of your system’s radiator when you are starting the radiator balancing process. You will most likely need to use pliers to open the lockshield valve.
Should lockshield valve be open or closed?
On most radiators, this is the valve you can’t turn by hand. By closing a fully-open lockshield valve by a few turns (with a pair of grips or screwdriver), you can slow down the rate at which water enters the radiator and reduce the speed with which it gets hot.
Which way do you turn a lockshield valve?
Turn the lockshield valve clockwise until it is closed and then open it by a quarter of a turn. Once the radiator has warmed up, take a temperature reading at the pipework leading to one of the valves (7).
Does it matter which side of radiator flow and return?
The vast majority of new TRV’s are bidirectional and can be fitted to either the flow or return, but it is always good practice to fit them to the flow side. If a non bidirectional TRV is fitted on the return side it will create a vibrating sound as the water tries to flow though it.
Where is the bleed valve on my towel radiator?
Find the towel radiator bleed valve. It tends to be at the top of the towel rail but is sometimes at the back. The screws are generally hexagonal or square. Also, many of them have a slot across the front so you can use a slotted screwdriver if a radiator key isn’t available.
Should heated towel rails be left on?
Heated towel rails can be left on continuously, like standard radiators but if you have an electrically heated towel rail it is better and safer to limit usage and turn them on only when needed, rather than leaving it on all the time.
