Tubes made from high-performance plastics Excerpt: Thermoplastic Tubes

Thermoplastic extrusion In contrast to paste extrusion, thermoplastic extrusion involves the use of granulate, which is continuously melted. The dimensions and shape are created during the subsequent calibration and cooling in a water basin. This allows us to manufacture tubes with varying dimensions. The wrapping and guillotine device at the end of the process allows the tubes to be supplied in units or by the meter. This offers the following economic advantages: • Customized shape • Large scale production • Short turnaround times • More economical use of resources • Low supervision costs •...

POLYTETRAFLON™-PTFE • Lowest friction coefficient of any polymer • Very good sliding character-istics—self-lubricating effect • No water absorption, water repellent • Anti-adhesive • Exceptionally large operating temperature range: -200°C to +260°C • Almost universal chemical resistance • Good electrical and dielectric properties • Resistant to superheated steam • Light, weather and radiation resistant • Self extinguishing in acc. with UL 94 V-0 • Physiologically harmless • Suitable for contact with foodstuffs and medical applications • UV resistant • Sterilizable with ethylene oxide and autoclave...

Moldflon™-ETFE • Continuous operating temperature of up to 150°C • Improved mechanical strength and stiffness • High chemical resistance to acids/bases and organic solvents • Resistant to ageing and weather • Self extinguishing in acc. with UL 94 V-0 • Suitable for contact with foodstuffs • Can be joined by electron beam welding Moldflon™ PCTFE • Continuous operating temperature of up to 160°C • Outstanding mechanical properties and good ma-chinability • Suitable for cryogenic applications with temperatures as low as -250°C • High chemical resistance • Self extinguishing in acc. with UL 94 V-0 •...

This table, intended for guidance only, shows typical values obtained with standard samples. The material properties expressly do not constitute any legal basis for specification or design purposes and may deviate substantially depending on the material, components, and processing and operating conditions. 35

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