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.
Which side of a radiator should a thermostatic valve be fitted?
return side
However, it’s always best practice to fit the TRV on the flow pipe that enters your radiator. If a non-bi-directional thermostatic valve is fitted to the return side of the radiator, it can make a loud vibrating noise when water tries to pass through it.
Where do you put a thermostatic radiator valve?
Where Should I Fit a TRV? Many thermostatic radiator valves nowadays are bidirectional, and you can install them to either the flow or the return pipe of your radiator. However, we would advise you to fit the TRV on the pipe that carries water to your inlet valve the flow pipe.
Which side of the radiator is the flow?
left
The flow of a radiator is typically on the left as you look at it stood up or attached to the wall.
Which way does radiator valve go?
Turn valves clockwise to turn your radiator off and anticlockwise to turn it back on. Turning your radiators off is easy.
Does it matter which way round a radiator goes?
Mistake 2 Orientation of the radiator
If you fit the radiator in the wrong orientation it can result in a reduction of output, noise from the heating system, or even in extreme cases you can end up with a radiator that doesn’t do anything other than take up wall space. This also goes for the valves.
Does it matter which way round you plumb a radiator?
The Rad can only go one way up – the top has one position for the air vent and the other side blanked off. At the bottom of the radiator it has openings either side for the inlet and outlet. So the radiator can only go in one vertical orientation.
Do you need a room thermostat with thermostatic radiator valves?
Yes! Thermostatic valves are the best way of getting the heating in your home just right! Used in combination with a room thermostat, they adjust your heating perfectly, and you won’t end up with some rooms being overheated.
Can you put thermostatic valves on all radiators?
If your boiler is fitted with a flow meter that detects when all of your radiator valves are closed, you can install a TRV on every radiator if you want to. You can leave any radiator without a TRV, but it makes more sense for you to select the radiator in the room with your wall thermostat.
Which valve is which on a radiator?
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.
Why is one side of my radiator cold?
One cold radiator usually indicates that either there is air in the system or there is a stuck valve within that radiator.This is particularly the case in an old radiator. To check if the valve is stuck, you can remove the rotatable head on the TRV to reveal a raised pin beneath it.
Do both valves on a radiator need to be open?
You should open both of the valves on all of your system’s radiator when you are starting the radiator balancing process.Once this is done your radiator system should be fully balanced and your radiators should heat up evenly and efficiently.
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.
Which side is lockshield valve?
The lockshield valve, on the side of the radiator opposite the on/off valve, may be adjusted to balance the output of your heating system. The lockshield itself is the plastic cap that covers the valve to ensure that you don’t accidentally change the setting once you’ve adjusted it.
Which way does a lockshield valve open?
Once the system has cooled down, you will have to open the lockshield valves. To do this, simply turn them in an anti-clockwise direction (to the left). You can do so by hand; but if your valves are a bit stiff, use your lockshield valve key, a spanner, or the wheelhead valve cap instead.
What happens if you get flow and return the wrong way round?
If the pipes are reversed, the sensor will record the lower temperature and could compensate to make up the difference. This can result in unwanted noise, or overheating and inefficiency.
Is the lockshield valve in the flow or return?
Systems are normally balanced by adjusting the lockshield valves usually fitted on the return side of each radiator. This ensures that each radiator circuit in the system has an equal pressure drop and receives the correct flow of hot water to heat the space in which it is fitted.
Does a radiator have a flow direction?
Pipes from one radiator lead to another and do not cross, so you orient the radiator the same way as the other radiators on the same floor are oriented. If you only have one radiator, you will need to get into your neighbor’s apartment to figure out which way the pipes are going.
Are radiators plumbed in series or parallel?
In other words, the radiators are installed in parallel. Although generally more expensive than the one-pipe system, the two-pipe system is the preferred option for modern buildings. Two-pipe systems come in two varieties: Two-pipe systems with copper or plastic pipes.
What is a radiator valve tail?
Radiator valve tails are the devices that screw into the two bottom radiator tappings. They are connectors between the radiator and the valves that control the flow of water through the radiator. You might need to change a tail to fit a new type of valve.
How does a thermostatic radiator valve work?
How do Thermostatic Radiator Valves Work?The thermostatic valve head goes on top of the valve body. And as the room temperature changes, the valve head expands, adjusting a pin in the valve body so that it opens or closes. Expansion as the room heats blocks the valve body to receive less hot water into the radiator.
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