Dyrhoff at HYDRO 2025: Visit Us in Thessaloniki
Dyrhoff is pleased to announce that we will be exhibiting at the HYDRO 2025 International Conference and Exhibition, which will…
Specialist in custom design of Inflatable Rubber Dams and Spillway Gates
Dyrhoff has been successfully completing projects across various countries in Europe, the Americas, Asia, and Africa since 2005, showcasing our global reach.
About Dyrhoff
Dyrhoff specializes in inflatable rubber dams and spillway gates, with a history dating back to 1989 in Europe. In 2003, we acquired Sumigate from Sumitomo Electric, a global leader in rubber dams. Dyrhoff's rubber dams follow Japanese Technical Standards. They are also the main European agent for Obermeyer Hydro spillway gates, offering complete systems and steel component manufacturing. Dyrhoff provides flexible services, including full-turnkey solutions and impartial advice on gate systems for various applications.
Projects
Countries
Rubber Dams
Spillway Gates
Customers
News
Dyrhoff at Dams and Hydropower Türkiye Summit
Dyrhoff is pleased to announce our participation in the Dams and Hydropower Türkiye Summit, which will be held on 3rd…
17 hours ago
Our latest installation is in Nova Scotia, Canada at the Ruth Falls hydropower station where we are installing rubber dams in 7 stoplog bays. Each rubber dam is 1.25m high and 13.4m wide. The first two sections have been completed with the remaining five to follow next month. https://t.co/r3az0NOB9W
2 months ago
Plan the year ahead using the new 2026 Dyrhoff wall calendar which features 12 of our recent and past rubber dam and spillway gate projects from Italy to Indonesia and USA to UK. For your free copy, e-mail office@dyrhoff.co.uk. https://t.co/L6VizHB3pz
3 months ago
We have three rubber spillway gate bladders available for immediate delivery due to a cancelled order. These are suitable for a gate with a height of around 1.8m to 2.05m and a width of around 17.5m. Contact office@dyrhoff.co.uk for further details and pricing. https://t.co/SvY3tSYIa1
4 months ago
First inflation of our latest rubber dam installed across the Rio Caia near Arronches in Portugal. The 24.0m wide, 1.8m high air-inflated rubber dam took four days to install. It is our fourth rubber dam in Portugal. https://t.co/iT7w3vHdjx
5 months ago
This week, we are back in Europe installing a new rubber dam across the Rio Caia near Arronches in Portugal. The 24.0m wide, 1.8m high rubber dam is inflated by air and is used for diverting water for irrigation/agricultural purposes. https://t.co/mpSMU46ToF
Our Products
Inflatable Dams
The rubber dam is a permanent structure comprising a sheet of rubber-coated fabric which is fixed to a reinforced concrete foundation using clamp plates and anchor bolts. The rubber dam is inflated by pumping air or water inside the rubber body until the design height or pressure is reached. It is deflated by allowing the air or water inside the rubber body to escape.
Spillway Gates
Spillway gats are a row of steel gate panels supported on their downstream side by inflatable air bladders. By controlling the pressure in the bladders, the pond elevation maintained by the gates can be infinitely adjusted within the system control range (full inflation to full deflation) and accurately maintained at user-selected set-points.
Why use Dyrhoff?
Dyrhoff excels in water control structures, boasting over 30+ years of specialized expertise in designing inflatable rubber dams and spillway gates. With a global presence, reputable partnerships, on-site supervision, and a commitment to continuous improvement through active research and development, Dyrhoff offers unparalleled solutions.