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Home News International

Mittel technology gets certification

by CCME Content Team
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Mittel’s patented welding technology passes European stress and impermeability test

Mittel’s patented welding technology passes European stress and impermeability test

Swedish district energy technology company, Mittel, has announced receiving a certificate for successfully passing a European stress test relating to its patented pipe welding technology – Mittel TSC. It is a patented method to case joint pre-insulated pipes with welding sleeves that makes the joints in district energy networks as strong and durable as the pipes, Mittel revealed. It further explained that the product was tested and approved for the latest version of the European EN standard, EN489:2009 for pre-insulated district energy pipes. The tests were carried out at the Fernvärme-Forschungsinstitut in Germany in late March, it said.

According to Mittel, the welded joint was subjected to water permeation under pressure (30kPa, equivalent to three meters depth) for 24 hours. After this, the welded joint went through a stress-crack resistance test in 800 (Centigrade?) hot water containing two per cent solvent, while put under pressure of 4 N/mm², for 25 days. The welded joint passed the tests without any signs of water permeation or debilitation, Mittel claimed, and added that together with the expanded test EN489:2003, Mittel TSC was exposed to 2,000 cycles, proving that it successfully passed and surpassed the most stringent requirements on the market today.

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Climate Control Middle East, the flagship title of CPI Industry, has been covering the regional and global HVACR industry with an unwavering commitment to providing in-depth news and analyses on policy, business and technology.

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