Logo Oventrop GmbH & Co. KG

Parliament Budapest
Budapest, Hungary

Type Public building
Project New building
Execution 1885-1904
Architect Imre Steindl

The centre of Hungary

Budapest, the capital of Hungary, is divided into two parts by the river Danube. Its attractiveness lies in the contrast between the hilly district of Buda and the flat district of Pest, which are, amongst others, connected by the Chain Bridge from the 19th century.
The Parliament building on the banks of the Danube is the seat of Parliament and at the same time landmark of the city. Since it was included in the UNESCO World Heritage List in 1987, it not only counts among the most imposing buildings of the city but of the whole world.

The impressive interior of the neo-Gothic Parliament building was created between 1885 and 1904 in the style of the Houses of Parliament in London. The Hungarian architect Imre Steindl, who went blind shortly before completion of his masterpiece, was entrusted with the construction supervision.

With a length of 268 m and a width of 123 m, it is the second largest building in the Hungarian capital after the Royal Palace. 40 million stones, among them half a million gemstones, were incorporated in the neo-Gothic façade. Its 365 turrets and numerous gables give the Hungarian Parliament building a unique appearance. As if by magic, the building was hardly damaged during the Second World War.

Just like the St. Stephen's basilica, the dome of the Parliament is 96 m high. The two residences of the secular and religious power thus jointly hold the title of tallest building in Budapest.
he parliament can be entered through 27 different entrances. Amongst others, 40 kilograms of gold were used for the classicistic interior of 29 staircases and 691 rooms. Artistic frescos and murals tell the story of Hungary, and Europe’s largest knotted carpet – 7 by 21 meters – can be found in an anteroom of the Chamber.
One of the most important imperial insignias –the Crown of St. Stephen –is kept in the imposing domed hall. The precious Crown which is guarded by the Crown Guards in their traditional uniforms goes back to King Stephen I, Hungary’s first Christian king.

Technically refined solutions were in demand from the beginning

As the architect of the Parliament building already recognised that the members of parliament would suffer from the summer heat inside the building which reaches an average of 28 °C in July and August, he put an ingenious idea into action. Hidden openings under two fountains in front of the building led into a tunnel system transporting cool fresh air into the building. Today, some of the opening are still used but cooling is carried out - more effectively – with ice.

During one of the many renovation measures, the sanitary installation of the parliament was provided with a legionella protection at the end of the last century. In a more than 100 year old building this technical challenge is not a simple matter. With the Oventrop regulating valves “Aquastrom C and T plus”, the installation was provided with an option for thermal disinfection.

In order to guarantee an effective thermal disinfection, the temperature of the hot water flowing through the pipes has to amount to at least 70 °C. By opening the hot water draw off points, the pipework and valves are at the same time flushed and thermally disinfected and possibly existing legionella are killed. During normal operation, the temperatures in the hot water pipework are high enough to prevent the formation of germs. This is achieved by the hydronic balancing of the circulation.

Oventrop bronze double regulating and commissioning valves are installed in the circulation pipes of potable water installations with a temperature range between -20 °C and +150 °C and serve to achieve a hydronic balance between the various circuits of a system.
The balance is achieved by a presetting with memory lock. All intermediate values are infinitely adjustable.

Here are the advantages at a glance:
- the location of the functional components in one plane allows for a simple assembly and easy operation
- only one valve for 5 functions: presetting, measuring, isolating, filling and draining
- infinitely adjustable presetting, exact measurement of pressure loss and flow rate via the pressure test points (accessories)
- draining valve for hose connection, plug, fill and drain ball valve and pressure test points with O-ring seal towards the valve body (no additional seals required)
- supplied with insulation
- certified DVGW, SVGW, KIWA, ACS, VA and WaterMark