Order a 146-page brochure or download a PDF instantly
Archives of the press coverage we’ve received to date.
At-home and virtual surveys enable us to give uniquely tailored design and tech advice.
Product showcases and behind-the-scenes shorts.
View the photos that our customers have shared on Instagram.
Including radiator assembly, delivery guides and pre-installation tips.
Help on getting the thread size right when replacing parts.
Home / Radiator Valves / One-Pipe Steam Valves
Valves for one-pipe steam radiators
Inlet / outlet control valves and thermostatic air vents for one-pipe steam radiators.
Read about the fundamentals of one-pipe steam heating systems here.
Our Windsor XL series is a technically superior valve that allows steam in and condensate out of a one-pipe steam radiator.
Niva One-Pipe Steam TRV adds temperature control to maintain a comfortable ambient temperature and reduce heating bills.
Both ranges are available in three finishes: Satin Nickel, Natural Brass and Chrome.
We recommend 1″ valves for radiators up to 5000 BTUs and 1.25″ valves above that. Niva One-Pipe Steam TRVs are rated for use on systems up to 1.5psi. There’s no need for domestic systems to run above that pressure.