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Welcome to PREVAL

Preval Water & Energy Systems manufactures water and energy saving products that have been sold and installed worldwide since 1980. With our products you can reduce your water consumption e.g. when taking a shower, up to 70% without realizing any change in comfort. Using less water is not only environmentally friendly but you also get the added benefit of saving the energy required to heat the additional water you would normally use.

You can save even more! For hygienic reasons, water fittings that come into contact with drinking water should be regularly cleaned and maintained. This maintenance can be costly but more importantly it is often overlooked which can compromise the quality of the water you drink. Our products are almost maintenance free and ensure proper hygiene. We accomplish this by our unique product design and by using only highest quality materials like high-grade steel, brass, bronze, silver or silver plated products in our products.


Development - Production - Distribution

Klaus Prenzler
Lange Gärten 2-4
D-29323 Wietze
Phone: +49 5146 1212
Fax: +49 5146 8661