• What is a micron?
    A micron is a thousandth of a millimeter or a millionth of a meter. Micron is the unit of measure used to determinate the size of particles in fuel, oil and air which are filtered out by the filter. The expression is by m, a measuring unit in language of filtration.

  • Should air filters be changed by miles or hours?
    Air filters should be changed only by engine manufacturer's recommendations on air restriction as measured by an air restriction gauge. It also depends on environment in which air filters are used and the increased demand of fuel against the same traction also gives a inhand idea to change the filter or regenerate to some extend by cleaning from inside.

  • Will air filter efficiency change during the filter's life?
    Air filter efficiency changes during the filter's life. Air filters are least efficient when new; dirt buildup on the outside of the filter making cakes of dirt to make it more efficient.

  • How often should change take place of safety element?
    A: Safety or inner elements should be changed every third change of the primary element. Safety filter / inner element should preferably not be disturbed until this interval suggested for the change of safety / inner element.

  • What is the micron rating of Qaim air filters?
    Air filters are measured on an efficiency basis over a wide range of particle sizes. Micron rating does not apply to Qaim air filters

  • What's the meaning of extension K in air filter reference?
    Extension K stands for an air filter element equipped with fins. Air filter with fins are used on off-highway equipment (i.e. earth-moving, mining application). The fins are functioning as a pre-cleaner to extend the life of the filter element itself by part cleaning due to cyclonic affect pulling down the dust

  • Lube Oil and Hydraulic filters' by-pass setting, what is this?
    Each lube oil filter and hydraulic filter system is equipped with a by-pass valve to ensure that main components in the system are sufficiently lubricated, independent if oil is cold or filter is blocked by excessive contamination. The by-pass valve can be located in the filter or filter head. Depending on the OEM manufacturer's specification, the setting of the by-pass valve can be different.

  • Lube Oil and Hydraulic filters' anti-drainback valve, what is this?
    An anti-drain back valve is fitted in filters for applications where the risk exists that the filter is running empty normally where the filters are up or down installed at right angle to the plane. This situation has to be avoided, otherwise wear will occur on the moving parts as these parts may not be lubricated by oil during the small interval till the filter is filled with the oil pumped in.

  • What is a bypass filter?
    A bypass filter is not a bypass valve, but is a low flow filter which filters a small percent of the engine oil at one time. Bypass filters are very effective at removing the smaller wear-causing contaminates. These filters also have a very high dirt holding capacity. Bypass filters are always used in conjunction with a full flow filter. These together ensure the lubrications with increase in dirt holding of the contaminants.

  • What is a full flow filter?
    Full flow filters filter 100% of the oil which goes through the engine.

  • Can a by-pass filter have a by-pass valve?
    No, by-pass filters are put in by-pass systems and do not require a by-pass valve. A by-pass valve is required in full-flow filtration to make sure that the engine gets lubrication when oil is cold or the filter is collaged. The condition to have dirty oil than no oil is created by the bypass valve which acts on a preset pressure avoiding damaging of the engine.

  • What is the purpose of the hot melt drops on the outside of the pleated filter element?
    The hot melt is applied to the surface of the pleated filter element to prevent the pleats from being stacked together when the element is subjected to media flow. Without hot melt being added to some applications, the pleats can be stacked together, resulting in decrease of the filtration area and in short filter life

  • What's the difference between full-flow and by-pass lube filters?
    A full flow oil filter is mounted in full-flow system of engine lubrication, meaning all oil entering the engine is filtered out. A by-pass filter is mounted in the by-pass, so approximately 10% of the lube oil flow is passing through this filter. Qaim offers "real depth filtration" by means of its stacked disc media. As wear particles in engines are in the range of mean of 5 to 30 micron, these particles cannot all be filtered out by the full-flow filter, as these filters would be too restrictive. Therefore, the use of a by-pass filter will keep your oil cleaner and result in less wear on moving parts of engines.

  • Should the sealing gasket on a lube filter be lubricated before installation?
    Yes, Clean oil should be used to lubricate the sealing gasket before the filter is installed on the head. This will ease installation and prevent gasket damage. Installing a filter with a dry gasket can result in fluid leakage.

  • Should Grease be used to lubricate the sealing gasket?
    Grease should never be used to lubricate the sealing gasket. This can result in leaks between the gasket and head during the service interval.

  • How tight should a lube filter be installed?
    Installation instructions on the side of the filter should be followed to properly install the filter. The sealing gasket should be lubricated with clean oil, the filter should then be screwed on until the gasket makes contact with the sealing surface on the head, and then the filter should be tightened the correct amount of turns as specified on the side of the filter

  • How quality and compatibility of replacement filter is ensured?
    The liability against quality assured supply by ISO certified manufacturing company should use filter paper in accordance with the recommendation of filter paper manufacturer amongst the choices including filter paper of extended life, of more dust holding capacity, more efficient response to the more difference of differential pressure between upstream and down stream pressure of a filter. The flow rate, environmental compliances and to follow the developments of filter paper for tomorrow and day after tomorrow enhances the assurance for quality and compatibility of filter supply.

  • What is the reason of over pressurized, deformed filter returned from a customer?
    Often the deformed filter is the sign that a problem existed in lube oil system of engine causing the over pressurization of can of filter resulting in deformation of filter.

  • What has caused the over pressurization of filter?
    The oil pressure is created by oil pump. The upper limit of this pressure is controlled by a pressure regulating valve which is an integral part of the pump. If this pressure is excessive filter damage may occur. This is the point that many people who are not familiar with lube system fail to realize. Normal operating pressure causes no permanent deformation of the filter body. When the system pressure reaches 150psi due to a faulty regulating valve, most filters become permanently deformed

  • Can completely clogged filter cause deformation of filter?
    No, if the regulating valve is functioning properly, it will maintain the pressure on the filter at 40 or 50psi even if the filter is clogged. In summary, if a filter distorts due to overpressure in the system, the fault lies with the regulating valve and not with the filter.

Copy right @ 2010-2011, all rights reserved by QAIM AUTOMOTIVE MANUFACTURING [PVT] LTD