How do I know if I am using the right filters for my system?
This is a common and very valid question. The first part of the answer lies in determining the level of cleanliness and the conditions required by the system.
If the lube -oil is common to all components in the system, the cleanliness level should be set in accordance with the most contamination -sensitive component.
The component manufacturer should have that information, but don't count on it. Your owner's manual may also have the information. also click here.
If not, your oil analysis lab recalls extensive records about contamination levels for all major components (valves, bearings, gear boxes, etc.). Can the Total Acid number (TAN) be reduced in an existing lube – oil system?
The answer is a qualified yes. Hard-working lube oils and hydraulic fluids change their characteristics with time. Acid is one by - the product of aging.
Other factors are temperature, water, levels, wear particles and additive depletion. Individual lubricating brands contain different additive packages. Blenders attempt to have their products satisfy the application.
Acid is the by -product of complex chemical reactions within the system. Unchecked acid "feeds" on itself, thereby raising TAN numbers.
Highly oxidized fluids reveal high acid numbers. Virtually all lube-oils, mineral-based and synthetic, will respond to "conditioning" techniques which are applied off -loop to the main reservoir utilizing Fuller's Earth, activated alumina, enhanced activated alumina or ion -exchange.
Filter systems should operate at low flow rates that increase the contact time between acidic fluids and the conditioning media. We will recommend suitable products based on your lube -oil system.
If a system displays early acid warnings, off -loop conditioning should be considered. We suggest tracking TAN numbers for 2 -3 sample periods. Conditioning techniques should also be accompanied with RBVOT analysis that will monitor additive packages. Buy best quality desiccant activated alumina from this Link
In general, it is not practical to reduce acid levels to "zero". However, acid can be kept within acceptable limits through timely and continuous conditioning, verified by regular oil analysis TAN monitoring.
Why are there three water phases within a given lube-oil system? There are several reasons.
Much of the explanations tied to the chemistry of lubricating oil - both mineral and synthetic. Lube-
oils, However, oil has a water - saturation point beyond which excess water becomes either entrained (emulsified) or totally free.
Therefore, we have to deal with dissolved, emulsified and free -water. Temperature has a huge influence on water solubility in oil.
At higher temperatures, oil dissolves greater amounts of water. Emulsified water displays variable characteristics. Additives and blender formulations affect performance. Read this: activated alumina balls for water treatment.
Free -water is visible in most mineral oils. Karl Fischer (ppm) oil analysis readings report the total water content of the sample which may consist of free, emulsified and dissolved water.
The breakdown of free, emulsified and dissolved water is not reported on these tests.
2. What are realistic and attainable "dryness" levels (low water PPM)
The primary tools for water removal are water -absorbing cartridges and bags, centrifuges, vacuum distillation, coalescing and dehumidification. Each has a distinct water-removal concept. It is important to identify water's source and to quantify it, if possible.
In steam turbines, water invasion may be continuous. Heat exchanger leaks are typically progressive. Unprotected reservoirs open the door to airborne moisture contamination. also Check this: activated alumina for water filtration.
New oil may not be water-free. Fundamental to remedial efforts is the "dryness" target that is appropriate for a lube -oil system. Equipment makers, blenders and oil analysis labs have recommendations. Once the targets are established, water removal techniques can be selected and put into action.
Why isn't new oil clean and ready for use? This is a question that must be answered by your lube -oil supplier. Contamination can be controlled by the blender but at a cost.
Filtration is the best protection from the tanker to on-site storage. Some oil merchants will certify a cleanliness level at the time of delivery. Also Check: activated alumina for air dryers
However, after on -site arrival of new lube -oils, operators should exert disciplined care to prevent further contamination. What are the solutions to sticky servo-valves?
One cause of sticky servo -valves is the oil's condition. Problem oils are usually highly oxidized that are caused by high temperatures, additive depletion, water and other contaminants that aid the oxidation process. Increasing total acid numbers (TAN) are certain indicators of pending problems.
Highly oxidized oils display visible contaminants that appear as gummy and gel -like deposits on internal valve surfaces and spool -valve filters. want to buy best quality LDPE bags for pharma packaging ?then click here.
Some operators call it "vanishing". Corrective action, other than dumping the entire oil batch, is off -Loop filtration and conditioning. The objective is to curtail TAN increases. Read this: Activated alumina F200 for arsenic fluoride removal
In some cases TAN numbers can be partially reversed, thereby increasing the oil's productive life. Depending on the oil, TAN reduction is achieved via one or more of the following media:
Activated Alumina 3-5mm- [ activatedalumina.com]. The best and the most lasting results will be found in continuously re -circulating the reservoir system with a properly sized off-loop conditioning filter system.
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