Description
This is a compact corner TRV pack intended for domestic radiators and towel rails where the pipework comes through the wall. It combines a thermostatic head and a reversible corner valve body with a matching lockshield and the small fittings you need to attach to a standard 15mm copper run and a radiator with a 1/2″ BSP inlet. The result is a tidy through-the-wall installation that keeps valves tucked beside the wall rather than projecting forward into the room.
The thermostatic head controls room temperature by throttling flow to the radiator as the room warms or cools; this pack is supplied as a ready-made pair (TRV and lockshield) with 15mm compression connections and 1/2″ BSP radiator threads, so it’s designed to fit the sort of radiator tails found on most UK domestic installations. The TRV offers several numbered settings plus a frost-protect position so you can guard against freezing while the house is unoccupied.
Key specifications
- Pipe size: 15mm (compression)
- Radiator thread: 1/2″ BSP
- Operating (head) range: 7°C to 28°C (0–5 scale — frost protection at the lowest setting)
- Maximum working pressure: 10 bar
- Finish: polished chrome head with white trim (chrome/white)
- Pack contents: thermostatic head fitted to a reversible corner valve body, matching corner lockshield, two 1/2″ BSP tails, two 15mm olives and decorator caps
How it works and what to expect
The TRV head senses room temperature and moves a pin to restrict or allow hot water into the radiator; as a result it’s the simplest way to add room-level temperature control without changing the boiler or programmer. On this variant the head uses a standard graduated control (commonly described as 0–5) with a frost setting at the low end — that makes it straightforward for anyone to set and forget. The valve body itself is bi-directional and reversible, so the same pack will fit flow or return installations and can be mounted horizontally or vertically to suit different radiator and pipe layouts.
Installation and compatibility notes
Because the pack uses 15mm compression plus 1/2″ BSP radiator connections it fits the majority of UK radiators and standard copper pipework. The kit includes the threaded tails and olives you need for a typical replace-or-fit job, and decorator caps so the TRV head can be removed temporarily (for painting, for example) without draining the whole system. The corner-style valve body is the key practical advantage here: where pipes come out of the wall directly behind a radiator, a corner valve keeps the installation flush and discreet compared with a forward‑facing angled valve. For older radiators or non-standard pipe sizes you may need an adapter or a different olive size — check the tail and olive dimensions against the pipe on site before you buy.
Finish, materials and durability
The valve bodies are solid brass with a chrome-plated finish and a white-trimmed thermostatic head on this version, so visually they suit contemporary radiators and chrome towel rails. The brass body and nickel/chrome plating are typical for economy-to-midrange TRV packs and will age predictably in standard central‑heating water conditions; the Team Controls product page lists a maximum working pressure of 10 bar and a high maximum flow temperature for the valve body. If you have a hard-water system or are unsure about the water treatment history of the system, a qualified installer can advise whether this style of valve is appropriate.
Practical advantages and limitations
Advantages are straightforward: tidy through-the-wall fit, ready-to-install pack with tails and olives, easy-to-use numbered head and frost protection setting. That makes this a sensible choice for straightforward radiator replacements or when adding TRVs to a room with limited access space. On the limitation side, these packs are a value-to-midrange option — don’t expect the tighter build tolerances, extended warranties or exacting certification detail you might get from more expensive OEM radiator‑valve ranges. If you need documented EN/BS certification for a project, check with the supplier or manufacturer for the paperwork before specifying at scale.
If you’re replacing an old valve, it’s good practice to check the radiator’s tail nut thread, measure the pipe O.D. to confirm the olive size, and if the system is older have the installer confirm that the radiator connections are free‑running and that the system water is clean enough for a new thermostatic mechanism. The pack is intended for typical domestic use — it’s not a specialist commercial valve intended for guaranteed long‑term accuracy in harsh industrial fluids.
