Description
These are a pair of straight manual radiator/towel-rail valves finished in matt black and offered as a twin pack. They are the simple on/off/flow-control valves used at the inlet and outlet of a heated towel rail or radiator: a straight-bodied valve intended where the pipework rises from the floor or otherwise approaches the radiator inline, rather than at an angle.
Mechanically the valves are a conventional compression-style radiator valve: a brass body with a 15mm pipe inlet and a 1/2″ BSP connection to the radiator tailpiece. Turning the spindle opens and closes the passage to regulate water flow to the radiator; because these are manual valves (not thermostatic heads) they control flow directly and do not automatically modulate to a set room temperature.
Key specifications
- Pack: Twin pack (two valves)
- Pipe size (inlet): 15mm (compression fitting)
- Radiator thread: 1/2″ BSP
- Body material: high-grade brass (as supplied)
- Finish: matte black, round style
- Design: straight valve — suited to floor-rise or inline pipework
Where these valves fit and how they work
If you have a vertical towel rail with pipework coming up from the floor, or a radiator whose tails enter in line with the valve body, a straight valve is the neat option. The 15mm compression inlet is the common UK plumbing standard for radiator pipework, and the 1/2″ BSP tailpiece is the usual radiator connection, so the mechanical compatibility with standard towel rails and panel radiators is straightforward.
Being manual valves they are used to isolate and trim flow to a radiator or towel rail: turn fully open for maximum flow and heat, partly closed to reduce output, or fully closed to isolate for maintenance. They do not provide thermostatic control — if you need room-by-room temperature regulation you would add a thermostatic radiator valve (TRV) head that fits a compatible valve body or replace one of these with a TRV assembly designed for 15mm/1/2″ connections.
Installation and compatibility notes
These valves use a standard 15mm compression fitting and 1/2″ BSP radiator connection, so in most installations they are a like-for-like replacement for other straight radiator valve pairs. As with any radiator valve installation you should:
- Confirm the radiator tailpiece size (1/2″ BSP is typical) and whether the radiator requires a specific tail or adapter;
- Ensure the pipework is actually 15mm copper or compatible material for a compression fitting;
- Isolate and drain the relevant circuit before attempting to remove or fit valves; if in doubt, get a qualified plumber to install them.
Some radiators and smart TRV heads require adapter collars or a dedicated valve body to accept the thermostatic head — these valves are supplied as manual bodies in a matching finish, so check whether you need an adapter if you later want to fit a TRV head.
Finish and day-to-day care
The matte black coating is chosen for a modern, low‑gloss look that pairs well with anthracite radiators and contemporary bathroom hardware. Like most painted or powder-coated finishes, it will show scratches and abrasion more readily than polished chrome, so avoid abrasive cleaning pads and harsh chemical cleaners. Wipe with a soft cloth and mild detergent; dry to avoid water spots.
Advantages and practical limitations
- Advantages: simple, affordable way to upgrade the visual finish of a radiator or towel rail; brass construction gives corrosion resistance and durability.
- Limitations: manual control only (not a TRV); no manufacturer datasheet or official product page has been identified for an exact make, so detailed technical data (pressure rating, exact dimensions, included accessories such as escutcheons) is not available from an official source.
In short, this twin-pack of matt-black straight valves is a practical, style-led choice for replacing or specifying manual valves for towel rails and radiators where the pipework suits a straight fitting. They give a clean, coordinated matte-black finish and use standard 15mm/1/2″ connections, but if you need thermostatic room control, specific dimensional drawings, or precise pressure/temperature ratings you will need the manufacturer’s datasheet or an alternative valve assembly that explicitly includes those details.
