Backflow preventers from A. u. K. Müller are tested according to DIN 13959 and 100% BPA-free

The backflow preventer protects the drinking water network against backflow of service water (DIN EN 1717) and is specially designed for the direct connection of devices - such as beverage dispensers, kitchen appliances, water dispensers, dentist's chairs, etc. - to the drinking water pipe network.

backflow preventer BPA-free

Why backflow preventers from A. u. K. Müller?

The controllable backflow preventers of the 49.000 series, type EA and EC are not only developed according to the performance requirements of DIN EN 13959 and confirmed by an accredited test centre. In contrast to components made of non-ferrous metals, polymers cannot result in the release of lead into drinking water, even if it is small.

Bisphenol A (BPA)-free plastic

The high performance polymers used are also 100% BPA free. Bisphenol A (BPA) is suspected of being harmful to health. As an innovation driver, A. u. K. Müller is therefore particularly concerned to go far beyond the standards and legal requirements and, as a precautionary measure, to refrain from using plastics for drinking water and food applications that require bisphenol A in their production process.


A. u. K. Müller GmbH & Co. KG

Dresdener Straße 162
D - 40595 Düsseldorf 

Telefon: +49 211 73 91-0
Telefax: +49 211 73 91-281

E-Mail: info(at)


A.K. Muller (UK) Ltd.
Unit 4, Brookside Business Park
Brookside Avenue, Rustington
GB - West Sussex BN16 3LP

Tel: +44 1903 788 888
Fax:+44 1903 785 817

E-Mail: valves(at)


A.K. Müller France
10 Avenue du Gué Langlois
Z.A.E du Gué Langlois
F-77600  Bussy Saint Martin

Telefon: +33 1 64 62 95 14
Telefax: +33 1 64 62 95 12

E-Mail: info(at)



A. u. K. Müller Shanghai
Rm26D, Huadu Mansion,
Zhangyang Rd. 838,
Shanghai, 200122, China

Telefon: +86 21 58 20 40 80
Telefax:  +86 21 58 20 42 12

E-Mail: info(at)



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