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What size are old radiator valves?

By: Jenipher JosephUpdated: March 15, 2021

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15mm valves are the only size you're likely to encounter, since 15mm copper pipes are the most common. There are also other sizes, from 8mm to 28mm, and there are accompanying adapters.

Just so, do screwfix sell radiators?

Radiators. Our radiators range is comprehensive and available in a huge choice of sizes, colours, styles and materials. Our radiators for sale are supplied by top manufacturers and we have fully tested our packaging to ensure that the product arrives with you in the condition you expect.

Also Know, what are radiator tails?

Radiator DIY: removing and fitting valve tails. Radiator valve tails screw into the bottom of radiator tappings; they connect home radiators with the valves that control the flow of water through a unit.

What is the difference between a lockshield and radiator valve?

Manual and Thermostatic Radiator Valves
Manual radiator valves are simple radiator valves opened and closed by hand. Typically they come in pairs, one wheelhead valve and one lockshield valve, fitted to opposite ends of the radiator. Again, the only difference between these two manual valves is the cap.

Do radiator valves fit all radiators?

While the overall size of each radiator valve can be dependant on the aesthetics and type (thermostatic valves are usually longer), we're going to talk about fitting sizes here. 15mm valves are the only size you're likely to encounter, since 15mm copper pipes are the most common.

Related

Which side of radiator is the 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.

What number should my radiators be on?

Radiator valves will have numbers or symbols representing how much heat the radiator is currently giving out represented by a level between 1 – 6. Generally speaking, turning the valve to number 3 should result in a room temperature of around 20°C with each number above / below representing a degree.

Are radiator thermostats universal?

However this in not the case now and most, if not all, TRVs are universal, meaning that the flow can be either way through them without making and alterations to them. This means that there is no restriction to which side of the radiator they can go.

Do all radiators have a lockshield valve?

Unless your radiators have TRVs fitted, they will usually have a wheelhead and a lockshield valve, one on each end.

Are radiator valves universal?

With a large variety of radiators currently available on the market in varying shapes, styles and sizes, not every valve is universally suitable to all radiators.

What is a lockshield?

The lockshield valve is the valve on a radiator that is usually covered with a plastic cap. The term “lockshield” means that once adjusted, the valve is shielded with the plastic cap that prevents it from being accidentally changed.

Do I need straight or angled radiator valves?

Angled valves are being used more and more as they look neater having less visible pipework than a straight valve. Straight valves also live up to their name as they have no bends or curves and just connect the central heating with the radiator straight up from the floor horizontally.

Are radiator tails tapered?

Radiator tails are tapered threads and need PTFE, or some form of jointing compound. Compression fittings (nut and olives) are just that and don't need PTFE.

Which thermostatic radiator valves is best?

Best Thermostatic Radiator Valves
  • iBathUK White Thermostatic Angled Towel Radiator Valves.
  • Realm Angled TRV Black Nickel Thermostatic Radiator Valves Set.
  • HB Signature Thermostatic TRV Brass White Radiator Valves.
  • Drayton 0707260 TRV4 Thermostatic Radiator Valves.
  • Realm Corner TRV Chrome Thermostatic Radiator Valves.

What are the two valves on a towel radiator for?

Each radiator in your home needs a pair of radiator valves which act like taps, enabling you to control how much heat they give out. One of the valves controls the amount of hot water entering the radiator and the other (known as the lockshield valve) balances the system by controlling how much heat the radiator emits.

Are all radiator valves the same?

While the overall size of each radiator valve can be dependant on the aesthetics and type (thermostatic valves are usually longer), we're going to talk about fitting sizes here. 15mm valves are the only size you're likely to encounter, since 15mm copper pipes are the most common.

Do I need to drain the system to change a radiator valve?

There are tricks of the trade to exchange water valves without full drain down. once you let the pressure out,with the rest of the system water held in suspension and working PDQ it can be done (you will need to exchange the valve in less than a minute). sometimes the existing radiator and pipe nuts can be reused.

What valves do I need for a towel radiator?

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. This is often the case when pipes and valve inlets are situated at the side of the radiator.

Do you need a TRV on a towel rail?

Can a trv be fitted to a towel rail. A TRV can be fitted to any radiator, however it is normal practice that 1 radiator on the system (usually in the bathroom) has 2 manual valves instead of a TRV and a manual valve.

What valves do I need for a vertical radiator?

If you wish to have the radiator very high up on the wall or over a bath then you will need angled valves (with the pipes coming out from the wall). If the radiator is in a 'standard' position you have 2 options: Straight valves & pipes coming up from the floor (cheaper option – normally assumed)