The Luxembourg-based KSB subsidiary Sisto Armaturen SA is extending its current range by launching the Source: KSB SE & Co. KGaA16TWA valve series for drinking water applications, with new materials for wetted components. The valves comply with European requirements on metal materials, plastics and elastomers for use with drinking water.

Water valves must handle high water temperatures over a long period to prevent Legionella growth. To ensure this, Sisto used high-grade stainless steel for the self-draining valve body designed without any dead volumes.

The new valve's peroxide-free and sulfur-free elastomer diaphragms with KTW W270 approval are designed for continuous operating temperatures of 90° C and meet the elastomer regulations of the German Environment Agency applicable from 2022.

The hydraulically optimized series is suitable for a maximum permissible operating pressure of 16 bar and is available in nominal sizes from diameter nominal (DN) 15 to DN 200. Sizes DN 125, DN 150 and DN 200 are also available in the proven variants with plastic-coated grey cast iron body.