Service Hydraulic Oils

February 9, 2012 · News · Comments Off

High grade of purity of the oil used – a common requirement of modern hydraulic and lubrication systems. However, not all suppliers of oil to ensure a proper level of cleanliness, and this leads to the need perform additional cleaning before use. Here are the middle classes purity of oils from different sources: fresh oil from a tanker: 16 cl. GOST 17216-2001; ISO 23/21/18; Fresh oil barrels from the standard 13 cl. GOST 17216-2001; ISO 20/18/15; Fresh from sealed cans of butter 11 cl. GOST 17216-2001; ISO 18/16/13; requirement for modern systems: 8-9 cells. GOST 17216-2001; ISO 16/14/11.

Comparative data show that the purchaser is an urgent need to bring the oil up required operational performance, as even minor contamination (5-15 microns) lead to increased wear of the elements of the hydraulics and internal leaks, failures in governance and jamming the valves. Major pollution – more than 15 microns – can provoke a sudden failure of the hydraulic components. In addition to mechanical impurities, particularly dangerous is the presence of water in oil – it is a consequence of corrosion, wear fast hydraulic elements, as well as accelerated aging oil. However, this is not a problem because there are high fixed and mobile filter systems that enable you to clean up oil to any desired purity level. This can prevent up to 90% of the costs associated with the poor condition of the working fluid, and significantly reduce downtime. Mobile filtration system allows to clean up the oil while filling the tank, wash it during launch, as well as a continuous circular filtering and removing water from oil. Very well, when mobile units are equipped with filter elements high dirt holding capacity, as it reduces maintenance costs. Stationary filter systems perform continuous removal of water and a continuous circulation of hydraulic filtration fluids.

Service Temperature

January 31, 2012 · News · Comments Off

Improved impact strength is accompanied by persistence of the high level of basic physical, mechanical and thermal properties. ABS is opaque, comes in the form of powder and granules. Range of ABS plastic is determined by the following properties: The perfect balance of mechanical properties: – high stiffness (modulus = 2000 MPa – 2700 MPa) – impact resistance (Izod impact strength standard grades of 20-25 kg-sm/sm), including at low temperatures compared with polystyrene, high impact polystyrene and a copolymer of SAN. This allows you to use the material for molding thin-walled large parts of household appliances (eg refrigerators) and car bodies and cases of various apparatus and equipment, auxiliary body parts of vehicles, high heels shoes, building panels, etc. Good electrical properties: – dielectric strength 31 – 47 kV / mm – volume resistivity 1015-1016 ohm cm; These properties allow the use of the material for electrotechnical components (sockets, switches, case of vacuum cleaners, television sets): Chemical and Climate resistance: – resistance to weak acids, alkalis and salts, alcohols, water and weather resistant Service Temperature: – details obtained from Standard ABS plastic work in the temperature range from -40 C to +80 C and held a brief heating to 105 C. This range of ABS plastic can be expanded by modification by the introduction of various additives: Giving ABS plastic anti-static and conductive properties: the introduction of antistatic additives to prevent adhesion of dust to the surface of the material. Reducing insulation (increased conductivity) increases the service life of electronic devices.