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  1) Visual Inspection of Oil in a Sample Bottle: Colour: wrong or mixed oil, photo-catalytic reaction, oxidation and thermal degradation, soot, chemical contamination Emulsions and Cloudiness: haze to buttermilk, cuff, stable or unstable, additive floc, salt, air, glycol Free Water: colour, speed of separation, level Sediments – colour: amber, black, translucent, settling rate, density and particle size, laser through the bottle 2) Using Oil Colour as a Field Test: You can check the colour of the oil sample with the help of an oil change colour gauge by using glass or PET plastic bottles Without a gauge, you can compare the sample with a new oil sample and observe the colour, if you find that colour of the oil is milky or dark, then check the contamination & moisture in oil with the help of an Oil testing kit 3) Moisture Detection by Vision: Visual inspection Transparent container Use comparators and good lighting, laser pointer is also effective Hazy to milky appearance may indic

The condition of the oil in lubrication and hydraulic systems is indicative of the health of the entire system. There are two essentials for ensuring productivity, for avoiding malfunctions and for reducing operating costs: Monitoring the fluid condition Continuous maintenance of operating equipment Varnish is a soluble and insoluble contaminant made up of by-products of oil degradation and oxidation. It can appear as a gel-resin like consistency or resemble solid deposits in the oil, or which plates out on the metal surfaces of lube systems. It can be the result of several possible root causes, including high temperatures, electrostatic discharges, lubricant degradation and micro dieseling. Varnish can produce a number of problems related to machine operation, such as valve stiction, lubricant flow restriction, clogged filters, etc. How is varnish different from sludge? Varnish is a tough, adherent oxide or carbonaceous material that coats internal machine surfaces. Hot surfaces and/o

  Definition:   Hydraulic fluid is the energy transfer medium in all hydraulic systems. However, the job of hydraulic fluid goes beyond the simple transmission of power. Although transmitting hydraulic energy is the core purpose of hydraulic fluid, it is useful in four secondary functions -   heat transfer, contamination removal, sealing, and lubrication. Hydraulic machines produce a lot of excess heat during routine operations, often caused by inefficiencies of the components, like pumps and motors. Without a way to carry heat away from these components, it could result in overheating issues with resulting damage of seals and internal components, especially as a result of low local viscosity. As oil returns to the reservoir, it often passes through a cooler to help maintain optimal temperature range before it is pumped back out to the system. Conversely, hydraulic fluid can carry heat into a system during cold starts, when needed. Hydraulic oil is prepared by the addition of additives

There are four basic functions of hydraulic oil: To act as an energy transmission medium To Lubricate internal moving parts of components To act as a heat transfer medium To seal clearances between moving parts If any of these functions is impaired, the hydraulic system in the equipment/rigs will not perform as designed. The resulting downtime can cost a lot in Dollar and increase the operating cost for any rig/operations on field. Proper hydraulic fluid maintenance helps to prevent or reduce breakdown maintenance. This is accomplished through continuous improvement program that minimizes and removes contaminants. Hydraulic fluid is expected to create a lubricating film to keep precision parts separated. Ideally, the film is thick enough to completely fill the clearance between moving parts. This condition results in low wear rates. When the wear rate is kept low enough, a component is likely to reach its intended life expectancy. The actual thickness of a lubricating film depends on:

  A) BSI (British Standards) – BSI BS 489:1999:  Specification For Turbine Lubricants. B) DIN (German Institute for Standardization DIN 51515-1, 51515-2:  This document specifies minimum requirements for oils for high thermal stress (high-temperature service) in turbines. C) ABB (ABB Group) ABB G12106:  Ultra-clean turbine oil, Long-life, Rust & Oxidation-inhibited circulating oil. D) ASTM International – ASTM D4304:  Define the properties of the mineral and synthetic oil-based turbine lubricating oils that are functionally interchangeable with existing oils of this type, are compatible with most existing machinery components, and with appropriate field maintenance, will maintain their functionality. E) GE (General Electric) GE: GEK-32568:  Lubricating Oil Recommendations for Gas Turbines With Bearing Ambients above 500°F (260°C) Also Read:  https://www.linkedin.com/pulse/mandatory-properties-steam-gas-turbine-oil-anshuman-agrawal-mlt-1-/ We at Minimac study your maintenance needs

  As a part 2 of #knowyouroil series, we will discuss about   Particle Contamination.   Whenever we talk about contamination the first thing that comes to our mind is solid particles that we can see or feel. But what we do not understand is how big a particle can really cause wear and tear to your machines, can all contaminants be seen with naked eyes? Is it too late to wait until then? To answer the above questions we must first understand the actual clearance size of the different types of lubrication film formed between  rolling > and  rotating  components which is essential for providing proper lubrication. Oil film thickness in machinery is measured in microns (µm), or one-millionth of a meter. For queries related to Oil Testing, follow: https://www.linkedin.com/company/minimacsystemsprivatetlimited Below are the finest tolerance found in different types of components. When small particles, which cannot be seen through human eyes, pass through the critical machine parts under l

  Oxidation Stability:  Oxidation stability is a chemical reaction that occurs with a combination of the lubricant and oxygen. The rate of oxidation is accelerated by high temperatures, water, acids, and catalysts such as copper. The service life of a lubricant reduces with an increase in temperature. Viscosity Index:  The viscosity index (VI) is an arbitrary, unit-less measure of a fluids change in viscosity relative to temperature change. It is mostly used to characterise the viscosity-temperature behaviour of lubricating oils. The higher the VI, the more stable the viscosity remains over temperature fluctuations. Filterability:  Capable of being filtered or separated by filtering. Low Sludging Formation Tendency:  Having low sludge formation tendency. To know more about sludging, read:  https://www.linkedin.com/pulse/what-varnish-its-effects-anshuman-agrawal We at Minimac study your maintenance needs and provide the best solution. We believe in  Discern, Design & Deliver. Call +