Description
The TRV4PACKC is a chrome‑finished corner thermostatic radiator valve pack from Tower, supplied as a complete pair of controls for a radiator or towel rail where the pipework comes in from the wall rather than the floor. It combines a liquid‑filled thermostatic head with a reversible, bi‑directional angled valve body and matching lockshield, so you get temperature regulation and a matching isolation/flow control in one boxed kit.
In simple terms the head senses room temperature and throttles flow to the radiator to hold a set level. The head is graduated from 0–5, which Tower states corresponds to an approximate ambient range of 7°C to 28°C; there is also a frost‑protection setting that operates below 7°C. The pack is intended for standard domestic central‑heating pipework and fittings: 1/2″ BSP tails with 15mm olives are supplied to suit 15mm copper or similar pipe.
Key specifications
- Temperature range: roughly 7°C to 28°C (graduated control 0–5 with frost protection below 7°C)
- Connections: standard 1/2″ BSP tails supplied; 15mm olives for 15mm pipe
- Valve body: brass construction, chrome finish
- Maximum working pressure: 10 bar
- Mounting: reversible for flow or return; horizontal or vertical head orientation supported
- Standards: EN215 and BS7556 compliant
How it works and what to expect
The temperature head contains a liquid‑filled sensor that expands or contracts with the room air temperature, operating the valve spindle to regulate hot water flow. This is the classic and widely used mechanical TRV method: set the head to the number that matches your comfort level and the valve will partially open or close to keep the room close to that temperature. Because the valve body in this pack is reversible and bi‑directional it can be fitted on either the flow or return side, and the head will work horizontally or vertically — a practical feature for corner or wall‑inlet radiators and towel rails.
What’s in the box and compatibility
The pack includes the thermostatic head (liquid sensor), a bi‑directional angled TRV body finished in chrome, a matching corner lockshield body, two 1/2″ BSP tails, two 15mm olives and decorator caps. The decorator caps let you seal the valve when a radiator is removed for decorating or maintenance. The supplied tails and olives make the pack suitable for standard 15mm copper or similar domestic pipework; if you use 10mm pipe there is a separate reducer kit available from the same range.
Practical installation notes
Because the TRV4PACKC is reversible you have flexibility when matching pipe runs: fit the TRV head on the flow or return as site layout requires. Tower specifies a maximum working pressure of 10 bar — well above normal domestic system pressures — and the product is constructed from brass with a chrome finish for corrosion resistance and a contemporary look. The pack is intended for traditional hot‑water radiators and towel rails rather than other radiator technologies (for example electric radiators or systems that require non‑standard valves).
Limitations and things to check
- The temperature scale is approximate; numbers 0–5 map to a typical room temperature range (7–28°C) but the exact ambient temperature at each setting depends on radiator location and room conditions.
- The pack does not include a drain‑off or integrated service valve — if you need to isolate and drain a radiator in situ you may prefer a variant with a drain connection or fit a separate service valve.
- Although the body is reversible, orientation and clearances matter: plan where the head will sit (horizontal/vertical) to avoid obstruction and to keep the sensor exposed to the room rather than blocked behind furniture or a towel rail cover.
- Fitting should be carried out by a competent installer who will ensure correct sealing on the 1/2″ BSP tails and check system compatibility (pipe material, flow direction, and any compatibility requirements for towel rails).
Overall, the TRV4PACKC is a no‑nonsense chrome corner TRV kit: a cost‑effective way to add thermostatic control and a matching lockshield where wall‑inlet pipework or towel‑rail installations require a corner set. It’s well suited to retrofit replacements and new domestic installs where standard 15mm pipework and 1/2″ radiator connections are used.
