Bexley TRV Range Products
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Frequently Asked Questions
How does the wax thermostat technology in the Bexley TRV range control room temperature?
The Bexley TRV range utilizes a sensitive wax thermostat sensor located inside the valve head. As the room air temperature rises, the wax expands and pushes a pin down to close the valve, restricting the flow of hot water into the radiator. Conversely, when the room cools, the wax contracts and allows more hot water to flow. This automatic self-regulation ensures your room remains at the specific temperature set on the 1-5 dial, preventing overheating and improving central heating efficiency.
Which connection type should I choose between Angled, Straight, and Corner valves for my pipework?
Selecting the correct valve body depends on how your heating pipes connect to the radiator. You should use Angled Valves if your pipes come out of the wall or floor and connect to the side of the radiator. Choose Straight Valves if your pipes run horizontally along the wall directly into the radiator side inlet. Corner Valves are the best problem solving solution for pipes emerging from the wall properly behind the radiator, as they allow for a neat 90 degree turn that keeps the valve head protruding safely inward rather than into the room.
Are Bexley Thermostatic Radiator Valves compatible with standard UK 15mm pipework and plumbing fittings?
Yes, every valve in the Bexley TRV collection is manufactured to fit standard UK 15mm pipework. The threaded connection to the radiator tail is a standard 1/2 inch BSP (British Standard Pipe) size, which is universal for the vast majority of modern radiators and towel rails. If you have non-standard microbore pipework (10mm or 8mm), you will need to purchase additional pipe reducers or adapters to ensure a secure watertight seal with these valves.
How does the frost protection setting function on these radiator valves?
The frost protection feature is a critical safety mechanism designed to protect your heating system during cold spells. When the valve dial is turned to the snowflake symbol, the Bexley TRV will remain closed unless the room temperature drops near freezing point (typically around 7 degrees Celsius). At this point, the valve automatically opens to allow a small amount of hot water to circulate, preventing the water inside the radiator and pipes from freezing and causing costly bursts or leaks.
What is the benefit of the pre-set functionality included in the Bexley TRV range?
The pre-set functionality allows installers to limit the maximum flow rate through the valve to balance the heating system effectively. By adjusting this setting, you can ensure that radiators closer to the boiler do not consume all the hot water, allowing sufficient heat to reach radiators further away in the circuit. This technical feature ensures even heat distribution across the entire property and prevents cold spots in distant rooms.
Can I install Bexley TRVs on any radiator or towel rail material?
The Bexley TRV range is compatible with almost all standard water-based central heating radiators, including cast iron, aluminium, and mild steel models. The valves use standard 1/2 inch BSP tails which fit universally. However, for towel rails, you must ensure the valve head does not protrude in a way that obstructs towel hanging. The compact dimensions of the Bexley range (Height 112mm-126mm) make them suitable for most heated towel rail designs as well.
How do I maintain and clean the valve finish to ensure the 10 year guarantee remains valid?
To maintain the pristine condition of finishes such as Anthracite, Chrome, or Black, you should clean the valve bodies using only a soft, dry cloth or a mild soapy water solution. You must avoid using abrasive chemical cleaners or scouring pads, as these can damage the plating or paintwork and void the 10 year manufacturer guarantee. Regular operation of the valve dial (turning it from min to max) every few months during summer is also recommended to prevent the internal pin from seizing.
Will upgrading to Bexley Thermostatic Radiator Valves reduce my energy bills?
Upgrading to Bexley thermostatic controls significantly improves energy efficiency by allowing independent temperature zoning. Unlike manual valves which are constantly open, these TRVs stop the flow of boiling water once the target temperature is reached. This reduces the workload on your boiler and prevents gas or electricity waste in unused rooms, potentially lowering heating costs by up to 40 percent depending on your previous system setup.
What are the specific dimensions of the Bexley Angled and Corner valves for installation clearance?
Precise dimensions are vital for installation in tight spaces. The Bexley Angled TRV measures approximately 126mm in height and 58mm in width with a depth of 40mm. The Bexley Corner TRV is slightly more compact at 119mm in height and 65mm in width. You should check these measurements against the space available between your radiator bottom tapping and the floor or skirting board to ensure the valve head can be fully rotated and accessed after installation.
Do these valves allow for bi-directional flow or do they have a specific flow direction?
Most modern TRVs like the Bexley range are designed to be bi-directional, meaning they can typically be installed on either the flow or return pipe of the radiator without suffering from water hammer (a banging noise in the pipes). However, for optimal technical performance and silence, it is always best practice to identify the flow pipe and install the TRV on that side if possible. If installed on the return, the valve will still function but relies on its internal construction to dampen the turbulence caused by water flowing in the reverse direction.