Clear solutions for clean drinking water: Wieland CUPHIN, ECOMERICA and the new sanitary material S71

At the SHK 2012, Wieland presented clear solutions for clean drinking water, with different materials being exhibited at the trade fair for the first time. Besides the proven CUPHIN alloy, Wieland presented the sanitary materials ECOMERICA and Wieland S71 for the first time. While ECOMERICA addresses the European US exporters, Wieland offers the newly developed S71 as an alternative to conventional dezincification-resistant brass. The new material S71 is characterised by excellent machining- and hot-working properties as well as good dezincification resistance, but requires a separate scrap cycle. In respect of the review of the Drinking Water Directive in 2013, S71 ideally complements the range of Wieland alloys for drinking water applications. With CUPHIN Wieland has for years been offering the sanitary market a premium material that meets all future requirements.

photo: Wieland-Werke AG
photo: Wieland-Werke AG

Materials for sanitary components have to meet increasingly tighter requirements regarding mechanical strength and corrosion resistance, especially in terms of hygienic suitability. The proven CUPHIN copper alloy is free of any undesirable metals and fully complies with DIN 50930-6 in this respect. Through the selected combination of the alloying elements copper, zinc, and silicon, the addition of lead can be completely dispensed with. Moreover, the premium material is characterised by high strength and high elongation which makes both cold and hot working possible. CUPHIN meets high requirements in terms of resistance to both stress corrosion cracking and dezincification. In particular component manufactures benefit from these properties. High resistance to dezincification is also ensured by the new material Wieland S71 which is particularly suitable as a successor – with good processing properties – to the so-called dezincification-resistant brass.

At the SHK in Essen, Wieland also presented ECOMERICA for the first time – a family of alloys that has been specially developed for the requirements of the US market. ECOMERICA materials meet the requirements of both the Safe Drinking Water Act, applicable across the United States, and the Reduction of Lead in Drinking Water Act coming into effect in all U.S. states as of January 2014. ECOMERICA materials have a lead content of less than 0.2 %. In addition to machining- and hot-stamping qualities, Wieland offers a dezincification-resistant ECOMERICA alloy. For special requirements in terms of lead-free quality and corrosion resistance, Wieland recommends the premium material CUPHIN as an alternative for US exporters.