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unisilkon l 641

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    • UNISILKON L 641
    UNISILKON L 641

    unisilkon l 641

    UNISILKON L 641 is a special lubricating grease based on silicone oil and PTFE for valves and other elements in the heating, beverage and sanitary sector. UNISILKON L 641 offers good penetration ability in small lubrication gaps and lube points of difficult access. As its viscosity is rather independent from service temperatures, UNISILKON L 641 allows constant actuating forces within the whole cold/hot water range of single-lever mixer taps. Due to its chemical composition, UNISILKON L 641 has shown to be resistant to various substances in the food-processing and beverage industries like beer, milk, juices, liquors, acid and alkaline disinfectants. UNISILKON L 641 is not compatible with most organic solvents as well as acid and alkaline solutions.

    UNISILKON L 641 is NSF H1 registered and therefore complies with FDA 21 CFR § 178.3570. The lubricant was developed for incidental contact with products and packaging materials in the foodprocessing, cosmetics, pharmaceutical or animal feed industries. The use of UNISILKON L 641 can contribute to increase reliability of your production processes. We nevertheless recommend conducting an additional risk analysis, e.g. HACCP.

    • UNISILKON L 641 is used as sealing and assembly aid for seals and packings in contact with water or water vapour, e.g.: domestic installations - ball valves; single-lever mixers – piston cartouches, ceramic discs; mixer taps with two handles – swivel spouts, shower switches, shower heads; thermostatic mixer taps – thermo regulators and elements; heating – thermostatic valves, tap cocks, pressfit seals; water hydraulics – sealing grease for radial shaft seals.
    • UNISILKON L 641 is neutral towards most metals, thermoplastics and elastomers. Owing to the many different elastomer and plastic compositions their compatibility should be checked prior to series applications. UNISILKON L 641 can be applied by means of spatula, brush, usual metering devices or the tampon printing method. Please observe the material safety data sheet.
    • Excellent wetting power
    • Operational smoothness due to a good viscosity-temperature behaviour
    • Very good resistance to water and water vapour
    • High thermal stability
    • Good sealing effect
    • Neutral towards metals, many elastomers and plastics
    • NSF H1 registered
    • Tested acc. to BWGL-KTW (UBA guideline), WRAS, ACS and NSF/ANSI/CAN 61 as well as DIN-DVGW-type examination certificate acc. to DIN EN 377 class E (…160 °C) as lubricant for application in equipment and actuators for fuel gases
    Characteristics UNISILKON L 641
    Article number 022121
    Composition, solid lubricant PTFE
    Composition, type of oil methyl silicone oil
    Colour space white
    Texture homogeneous , long fibrous
    Service temperature, lower limit -40 °C
    Service temperature, upper limit 160 °C
    NSF H1 registration number 056400
    Density, Klüber method: PN 024, 20°C approx. 1.18 g/cm³
    Worked penetration, DIN ISO 2137 / ASTM D217, 25°C, lower limit 300 0.1 mm
    Worked penetration, DIN ISO 2137 / ASTM D217, 25°C, upper limit 320 0.1 mm
    Shear viscosity, Klüber method: PN 008@DIN 53019-1, equipment: rotational viscometer, 25°C, 50 s⁻¹, lower limit approx. 135000 mPas
    Shear viscosity, Klüber method: PN 008@DIN 53019-1, equipment: rotational viscometer, 25°C, 50 s⁻¹, upper limit approx. 205000 mPas
    Dropping point, DIN ISO 2176 / IP 396 ≥ 230 °C
    Water resistance, DIN 51807-1, 3 h, 90°C ≤ 1 - 90 rating
    Minimum shelf life from the date of manufacture - in a dry, frost-free place and in the unopened original container, approx. 36 months

     

    kluber-unisilkon-l-641.pdf