Instructions for choosing polyurethane foam for a water filter

Ventilation and split systems, air conditioners, water purification devices - all this equipment is worthless without high-quality filters. They are made from reticulated foam rubber with an open-pore structure. It is obtained after special processing (reticulation), during which the membranes between the foam cells are completely removed. And the functionality of the material and its ability to filter air or water is affected by both the size of the cells and their number per linear inch. Which material is more suitable for filtering liquid media, and which one is more suitable for air?

Air filter foam maintenance

It's cold outside and many of you have parked your scooters for the winter, but there is equipment that is also used in winter. These are enduro and motocross motorcycles, as well as ATVs and snowmobiles. De facto, they are all equipped with reusable foam air filters , which require periodic maintenance. In this article we will look at how to operate such filters. The proposed method is only suitable for foam filters and is in no way suitable for paper and hard “zero” filters.

The air filter is the breather of your engine, and its maintenance is a priority. A clogged, unclean filter reduces power, increases fuel consumption, and if it is already torn, it allows dust and sludge to enter the engine, and this is already dangerous due to its breakdown.

  1. Cleaning the foam filter
  2. Cleaning the air filter
  3. Scooter air filter lubrication

Cars for sale

Volkswagen Tiguan, 2015

Volkswagen Tiguan, 2012

Volkswagen Tiguan, 2015

Volkswagen Tiguan, 2012

Comments 33

This gasket is designed to retain small stones and ice chips.

I use Paramon in the winter. Or when there is a lot of dust on the road in the off-season. But there is no difference.

During TO1, I was told that with paralon this is a filter for regions with high pollution. I looked in ETKA - 1K0129620D is the filter element in the photo without foam (inactive for my Tiguan), and 1K0129620L goes specifically to the diesel Tiguan and in ETKA it says that the filter is for use in cold climates and it is with foam. And here's who to believe...

From the photo on the internet D with paralon

Isn’t it for “cold regions”?

They are for regions with high pollution

I installed mann with and without foam rubber. no difference in sensations, only without foam rubber the whistling of the compressor is more audible

And my turbine blows faster)) so I think))

Whenever I come across one with foam rubber, I always take it off))) it’s better without it

Doesn’t dad need an extra cabin filter for the Passat?) otherwise I have extra ones

what other additional filter?)))

For me, it is not needed. absolutely

Well, yes) a fan with open bearings needs it, but you don’t

I cut off this padding polyester, well, it’s not needed. It only makes it worse for the air to pass through it. I checked the condition of the pipes after 8000 km. everything is perfect! best the enemy of the good

Then it’s easier to just install it right away, and it’s cheaper!

There are no such ones for Audi, without padding polyester. If there is one on the FV, then yes - it’s better without it.

To each his own, as they say!))) I put it on mine, only with a fur coat (sintepon) ...

For my Opel and BMW, the VIN checks for compliance with the padding polyester; the Opel also has a mesh on top so that when the turbo sucks in air the filter does not wrinkle. I cut off the synthetic padding on the BMW filter and it clogged faster. Many people use simple ones, but after comparing both, I realized what this fur coat is for and that with padding polyester they last longer because they clog less)))

Cleaning the air filter

If there are no signs of aging or tears, we move on to the next part of the wash, this time in warm water and using kitchen detergents (no aggressive chemicals like washing powder!). If the previous stage is needed to get rid of oil and grease, then this stage actually washes out particles of dust and sand from the pores of the air filter. It is necessary to rinse until the water stops turbidity. We squeeze the filter (by squeezing it in your hand, no spiral twisting!) and let it dry without using hair dryers, dryers or other heating devices. It is advisable to give it a shape as close as possible to the original (for this you can make a box from wire, say).

How to change it correctly?

How to change the air filter on a Chinese moped? The sequence of actions for replacing the cleaning device in a moped is quite simple.

Instructions for DIY replacement steps:

  • First of all, we install the moped on the stand. It is also advisable to wash the moped to prevent dirt from getting into the moped components;
  • Now you can start replacing: remove the protective cover of the battery; to do this, you need to unscrew one bolt with a Phillips screwdriver;
  • Then we disconnect the battery from the terminals and take it out of the seat;
  • Next, you need to remove the seat; to do this, you need to unscrew two bolts with a “10” key and move it with a sharp movement (from left to right in the direction of travel of the moped);
  • As soon as the seat has moved, we lift it and it can be easily removed. Pull the clamp off the air filter pipe. If yours is not rubber, but metal, you must first loosen it;
  • Now you can pull the pipe off the carburetor. This must be done carefully to prevent dirt from getting inside the carburetor;
  • After the pipe has been disconnected from the carburetor, we pull it inward to the place where the battery was. The air filter housing is made of rubberized material, so it can only be deformed when removed, only carefully. While deforming the filter housing, carefully pull it out. This should be done extremely carefully, as you can touch and break the wires passing nearby;
  • After successfully removing the casing, remove the filter from it. If there is dust or dirt in the casing, it is necessary to wash and dry it;
  • Now install the filter and reassemble in reverse order.

Read more: How to install rear window 2109

Before installing the seat and battery cover, make sure you have not cut or disconnected any wires during installation.

Why is there foam on the air filter?

The proposed method is only suitable for foam filters (although encouraging results were also obtained with a home-made filter made from filter elements of kitchen hoods, but it is only suitable for asphalt), and is not suitable for paper and hard zero filters in the “K&N” style.

The air filter is the lungs of your engine, and its maintenance is a priority. A clogged, dirty filter reduces power, increases fuel consumption, and if it is also torn, it allows foreign bodies into the engine. All this is obvious.

In the case of pure use on asphalt (like most utilitarian supermotards, with very rare forays into dusty soil and sand), it is permissible to use a dry filter, that is, a filter without oil impregnation. This should not be neglected, since impregnation significantly reduces the filter throughput. Particularly generous impregnation. And the instability of the result from impregnation to impregnation also does not add to the desire to resort to it.

Actually cleaning the air filter

Since the air filter plays a crucial role and has a direct impact on the engine, it needs to be cleaned regularly.

How do I clean the paper air filter on my motorcycle?

Very effective and inexpensive, paper air filter

often takes on a white or gray color. Taking on the cotton look, it is very difficult to keep it in good condition, especially if you live in a place that is often polluted.

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