Description
These are simple, no‑frills corner manual radiator valves supplied as a matched pair. They are intended where the pipework meets the radiator from the wall or dead‑corner area and you want a neat, chrome finish and a straightforward shut‑off / flow control for a domestic central‑heating radiator.
Key specifications
- Pack: 2 valves (pair)
- Finish: hand‑polished chrome
- Pipe connection: 15mm
- Radiator connection: 1/2″ BSP
- Maximum flow temperature: 120°C
- Maximum working pressure: 10 bar
- Product code: MRVC (variants also listed by the supplier in anthracite MRVC‑A and black MRVC‑B)
- Weight / boxed dimensions (supplier listing): approx. 0.587 kg; 80 × 85 × 50 mm
What these valves are and how they behave
They are wheel‑head, manual radiator valves designed for corner orientation. As manual valves they provide simple graduated control: you turn the valve head to restrict or allow flow into the radiator. They do not contain a thermostatic element, so they will not regulate room temperature automatically — you use them to balance flow or isolate a radiator for service.
The corner layout means the outlet is set at a right angle to the inlet, which keeps pipework close to the wall and is the usual choice when the copper or plastic feed enters the room from the wall near the floor rather than from the floor directly beneath the radiator.
Suitability and performance
The stated pressure and temperature ratings (10 bar, 120°C) are more than adequate for typical UK domestic sealed hot‑water systems, so these valves are suitable for modern combi and sealed systems from a materials‑rating perspective. The connections (15mm inlet and 1/2″ BSP radiator tail) follow common UK plumbing practice, which keeps installation straightforward on most radiators and 15mm copper or plastic pipework.
Because they are sold as a matched pair and finished in hand‑polished chrome, they are intended for visible installations where an even, tidy look is wanted — for example towel radiators, bathroom radiators or any wall‑mounted panel radiator with corner inlets.
Installation and compatibility notes
Check a couple of practical points before ordering. First, confirm your radiator’s tailpiece is compatible with a 1/2″ BSP connection — that is the industry standard for many radiators, but older or specialist radiators sometimes use a different coupling. Second, these valves are manual only: if you want automatic temperature control, you need a thermostatic radiator valve (TRV) on the flow side, or a TRV pack specifically designed for corner fittings.
Fitting should follow normal plumbing practice: isolate and drain the system or the radiator, use the correct compression or soldered joint technique for the 15mm inlet, tighten the 1/2″ tail onto the radiator without overtightening, then pressure test. If you are not confident working on central‑heating pipework, have a qualified plumber do the job.
Limitations and what else to consider
These valves are functional and inexpensive, which is their appeal. They do not include a thermostatic head and the supplier’s product listing does not specify material or warranty details on the product page, so if you need assurances about brass grade, long‑term corrosion resistance or a specific warranty length check with your supplier or the distributor before purchase.
If you want to control room temperature automatically, look for a corner TRV equivalent. If you need a contrasting finish (anthracite or black) or a pair that includes a dedicated lockshield variant, the MRVC family does appear in other finishes from the same range, so you can often match finishes across the room.
Practical, straightforward and compatible with the common fittings used in UK domestic systems, these MRVC corner manual valves are a sensible choice when you want a tidy corner installation and simple manual flow control without the cost or complexity of thermostatic valves.
