Blog producing pipes, fittings and valves made of ductile iron

The right cast iron pipe system for every bedding

Cast iron pipes were the basic stock when it came to the installation of urban drinking water supplies 150 years ago. With increasing requirements from users for efficiency and simultaneously increasing chemical and mechanical loads, an innovative foundry industry responded with some sophisticated solutions.

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Ductile cast iron pipe as a problem solver

The Devoll hydropower project in Albania: Statkraft AS has built two hydropower stations on the River Devoll, some 70 km to the South-East of the Albanian capital of Tirana: Banjë and Moglicë. The two together will have a capacity of 256 MW and an annual production of around 729 GWh.

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Spectacular pipe mounting in the vertical

After a little more than a year of construction time, in September 2019 the new hydropower station in Finhaut, Switzerland, was able to be put into operation. However, achieving the Finhaut microgeneration unit took ten years overall: from project planning in 2008 until the start of construction work in summer 2018.

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Large-dimension interim pipeline with cast iron systems

Positive locking and flexible thrust-resistant systems have extended the range of application of ductile cast iron systems and shown that they can withstand all loads produced by internal and external forces. In the construction and during the operation of pipelines with restrained joints in tunnels and under bridges, when used with the application of trenchless installation techniques …

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Anergy networks with ductile iron pipes

The main focus of the so called Swiss Energy Strategy 2050 lies in the use of local, renewable energy sources. Their most important aims are a sustainable guarantee of energy supply, consistent development of existing energy efficiency potentials, reduction of CO2 emissions and full utilisation of existing potentials of new renewable energy sources.

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Briefly introduced: New generation of strainers

The ERHARD Strainer F3 10 in straight seat design is suitable for the protection of control valves, water meters, etc. It is used in water supply, water treatment, irrigation networks and pumping stations. It is offered in the nominal widths DN 50 to DN 250 and in the pressure stages PN 10, PN 16 and PN 25.

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A secure drinking water supply even at times of flooding

From the afternoon of 8 August 2007 until the morning of 9 August 2007, the volume of rainfall in the Swiss valley of the River Birs reached unexpected dimensions: between 90 and 120 mm of rain fell there in just 15 hours. “Normally this represents the total average rainfall for a month …

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New generation of resilient seated gate valves

The INFINITY gate valve design from ERHARD with the usual flange connection to EN 1092-2 is now be supplemented in the product range by a version with PE welding ends. Depending on the pressure stage, the resilient seated gate valve according to EN 1074 …

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auch verfügbar/also available: German