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Don’t Underestimate the Air Filter Cleaner

Speaking of air filter cleaners, everyone is familiar with them. They are often overlooked, because in everyone’s impression, the air filter cleaner uses a filter element to filter the dust in the air. Yes, that’s what it does. But the facts are not that simple. Otherwise, why upgrade the filtration technology of the air filter cleaner and configure a sensor specifically? Let’s first take a look at the relevant knowledge of the empty consideration.

Ⅱ. Inertial air filter cleaner

This type of air filter cleaner can meet the air filtration requirements of land transport trucks. If it is a construction site vehicle, where the air is dusty, you can choose to install an oil bath air filter. There are two filter elements, one large and one small, in the inertial air filter. The big one is the “main filter element”, which is the first level of filtration, and the smaller one is called the “safety filter element” which is the second level of filtration.

The air entering the air inlet must first be filtered by the filter to filter out the dust and particles in the air. You need to ensure that the air entering the engine is basically only gas. If dust or particulate matter enters the engine and mixed with fuel for combustion, it will increase the friction between the engine piston ring and the cylinder wall. The failure of engine component damage is certain. If the filter element is too dirty and clogged, it will hinder the air intake, resulting in insufficient power due to insufficient air intake, weak acceleration, and even inability to start the car.

Ⅱ. Is there any attention to the maintenance of the air filter cleaner?

  1. Dust exhaust port

The outlet that discharges the dust accumulated in the filter housing wall under the inertial vortex. When the engine is above 1500 rpm, part of the dust in the box will be discharged through the vortex cyclone. A small amount of rainwater can also be completely discharged through this port, but the waterproofing of the cap opening and the air inlet middle interface must also be done well. A large amount of water will seriously damage the filtration efficiency of the filter element.


① If the dust exhaust valve is damaged or falls off, and the rubber of the dust exhaust port loses its elasticity and cannot be closed, it needs to be replaced in time. Under the action of the internal and external pressure difference, the unprefiltered air directly enters the air filter element, and the filtered dust cannot be discharged normally, which greatly reduces the filtering effect and service life of the air filter cleaner.

②In rainy days or working conditions with high air humidity, it is necessary to clean the condensed dust in the dust exhaust outlet and dust exhaust channel in time and frequently. The high humidity will cause the dust to condense and affect the dust exhaust.

  1. Main filter element and safety filter element

The work of filtering dust mainly relies on the main filter element and the safety filter element has an air permeability number, but the filtration performance is not good. The two filter elements need to be used together.

① The two filter elements must be identical and complete, and only one filter element is not allowed to start the engine. The safety filter element does not require maintenance and cleaning, and it is not allowed to remove the safety filter element during maintenance. In order to prevent dust from entering the air inlet (even if it is stopped).

②If the main filter element is damaged, or if there is dust on the surface of the safety filter element when it is too dirty, the main filter element and the safety filter element should be replaced immediately.

③When replacing the two filter elements, ensure that there is no fly dust in the environment. When replacing, disassemble and replace one by one, and the filter element cannot be removed at the same time.

  1. The order of cleaning the filter

①Remove the main filter element, block both ends of the filter element with a clean cloth or rubber plug, brush the surface of the filter element along the crease direction with a soft brush to remove the dust on the surface of the filter element, tap the end surface of the filter element lightly to make the dust fall off.

Or you can use 0.2-0.3MPa compressed air to blow from the inside of the filter element to outside to blow off the dust on the outer surface of the filter element. It is forbidden to use liquid cleaning during cleaning to prevent the filter element from sticking to dust and blocking the filter element.

②Check whether the rubber sealing ring of the main filter element is damaged; check whether there is dust inside the main filter element. If the above problems exist, the main filter element should be replaced immediately.

③Check whether there is dust or insect corpses on the inner wall of the air cleaner; whether there is dust condensation at the dust exhaust port, and if there are any above problems, clean it up in time.

  1. The filter element should not be cleaned frequently

The service life of the filter element depends on the ash capacity. It is not possible to clean all the dust in the filter element every time it is cleaned, so its dust holding capacity will be reduced by more than 20%. As the number of cleaning increases, the dust holding capacity of the filter element will gradually decrease. It is recommended to replace the filter element with a new one after the filter element has been cleaned for about 3 times.

A sensor that monitors the filter is installed on the inlet of the filter connected to the turbocharger. When the air filter cleaner needs maintenance and the air intake resistance reaches the set value, the indicator light will light up, and a maintenance signal will be issued to remind the driver The air filter is maintained or replaced.

Generally, every time the vehicle is maintained twice, check the air filter cleaner, clean the filter element or replace it, and don’t just rely on the prompt of the sensor.

Find high quality air filter cleaner suppliers, manufacturers and suppliers at pharmasources.com – the largest b2b platform in pharmaceutical industry.

WL Efficiency Multi-cylinder Standing Vacuum Pump

Category:Cleanroom System > Other Cleaning System

Product Name:WL Efficiency Multi-cylinder Standing Vacuum Pump


Company:Zhejiang Yaguang Technology Co., Ltd.

Air filter cleaner supplier’s page:


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