Klüber UNISILKON L 641 Special grease for water and heating valves 60g

UNISILKON L 641 Special grease for drinking water, beverage and heating valves | N° 022121UNISILKON 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.Temperature range: -40°C to +160°C Volume:  60g tubeAlso available in: 500g can, 30kg bucket Benefits for your applicationExcellent wetting powerOperational smoothness due to a good viscosity-temperature behaviourVery good resistance to water and water vapourHigh thermal stabilityGood sealing effectNeutral towards metals, many elastomers and plasticsNSF H1 registeredApplicationsUNISILKON 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.Application notesUNISILKON 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. Technical specifications Chemical composition, type of oil methyl silicone oil Chemical composition, solid lubricant PTFE Lower service temperature -40 °C / -40 °F Upper service temperature 160 °C / 320 °F Color space white Texture long-fibred Texture homogeneous Density at 20 °C approx. 1.18 g/cm³ Worked penetration, DIN ISO 2137, 25 °C, lower limit value 300 x 0.1 mm Worked penetration, DIN ISO 2137, 25 °C, upper limit value 320 x 0.1 mm Shear viscosity at 25 °C, shear rate 50 s-1, equipment: rotational viscometer, lower limit value approx. 135 000 mPas Shear viscosity at 25°C, shear rate 50 s-1, equipment:rotational viscometer, upper limit value approx. 205 000 mPas Drop point, DIN ISO 2176, IP 396 >= 230 °C Water resistance, DIN 51807 pt. 01, 3 h/90 °C, rating <= 1 - 90 Minimum shelf life from the date of manufacture - in a dry, frost-free place and in the unopened original container, approx. 36 months Information on product safety (Manufacturer, Contact)KLÜBER LUBRICATION MÜNCHEN GMBH & CO. KG, Geisenhausenerstraße 7, 81379 München, GERMANY, +49 89 7876 0, , www.klueber.com