TPi January 2010

developments products &

Nickel free Sanpress pipe for high- grade stainless steel installations

new high-grade stainless steel, so that the Viega Sanpress programme could be largely independent of these price developments. The Sanpress pipe 1.4521 is available in dimensions of 12 to 108mm, and can be shortened, de-burred or pressed with the usual tools. Bending radii from 3.5 x d to a nominal width of 28mm is possible. In combination with Viega press connectors made from high-grade stainless steel and gunmetal, the Sanpress pipe 1.4521 can be used with all drinking water types without restriction and is said to last for over 50 years. DVGW guideline W 534 confirms this system certification.

Viega’s Sanpress pipe 1.4521 for drinking water installations is made of high-grade stainless steel: the pipe is nickel free, making it less dependent on fluctuating raw material prices. With DVGW-certification, it can be used for any drinking water installation. ‘Mixed installations’ are also possible with the Sanpress pipe 1.4401 as well as the Sanpress Inox and gunmetal connectors by Viega. The steep rise in raw material prices have made it difficult to produce a reliable medium-term calculation for piping systems made of high-grade stainless steel. Since 2006, intensive research has been conducted into a

Viega’s Sanpress pipe 1.4521 is DVGW-certified for drinking water installation

The pipe can be processed without restriction together with the Viega press connectors and fittings

According to Section 11 of the drinking water ordinance, unrestricted disinfection is possible. High-grade stainless steel 1.4521 has been used for many years, for example in Scandinavia, for the production of heat exchangers and expansion tanks. Experience of using the material for exhaust systems in motor vehicles shows its high durability.

For clear identification of the Sanpress pipe 1.4521 from other high-grade stainless steel pipes, Viega has introduced a uniform and distinctive ‘green’ factor. In addition, the pipes are supplied with green plugs to protect against contamination before final operation. The pipe can also be used in industrial applications, such as the setting up of compressed air networks or pipelines for demineralised water. Viega GmbH & Co KG – Germany info@viega.de www.viega.com

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January 2010 Tube Products International