Cartridge filter

 Cartridge filter

Introduction

Cartridge filters are hard to characterize using a set of rules. However, this filter has several distinguishing characteristics, such as a cylindrical housing that generally succumbs to the pressure of the fluid being filtered. A changeable filter element, generally referred to as the cartridge, is located within this. They are usually constructed to fit into a conventional housing and are of a standard size. The cartridge filter is most typically set up as a unit, with a single housing containing one or more cartridges depending on the blow requirements. When fluid flow continuity is required, a duplex system with two cartridge filters running parallel to each other is used. In this case, when one is being cleaned, the other runs for uninterrupted flow and vice versa.

 A cartridge filter is a tubular filtration device that may be used in a variety of sectors to meet a variety of filtering needs. A cartridge is a device that removes undesirable particles, contaminants, and chemicals from liquids by encasing them in a housing or casing. Cartridge filters can also remove submicron particulates.

What Are The Two Categories Of Cartridge Filter?

You can find two categories of cartridge filters

a) Surface filters and

b) Depth filters.

Surface filters

Surface filters prevent particles and pollutants from passing through the medium. Outside of the filter medium, they are restricted. Within the medium, depth filters catch all impurities, pollutants, and solids.

The passage of fluid through a layer of material that limits particles on the surface is referred to as surface filtration.

When the pressure reduces, the filter cartridge may be removed from the filter shell and cleaned. The flexibility to wash and reuse the cartridge is what makes surface filters so valuable.

Filters that are generally employed as coarse pre-filters, with a size range of 30 to 500 microns, can also be utilised for sub-micron applications. The justification is simple: their defined pore sizes and composition provide stable and fine filtering.

 The size of particles prevented from entering the medium by the cartridge filter is larger than the medium's typical pore size. The particle size is significantly smaller than the medium's typical pore size.

The surface filter becomes caked with particles on the exterior over time, restricting the flow beyond an acceptable level. The filter surface must be cleaned and reused at this stage.

Surface filters are comparatively cheaper and have a shorter shelf life.

Mechanical strength of the filter medium is less (with the exception of filter medium made of stainless steel)

Depth filters

Within the medium, depth filters catch all impurities, pollutants, and solids.

 Depth filtration is defined as a thicker layer of media (or numerous layers) that creates a tortuous path for particles to go through and prevents them from passing through.

The particle size is substantially smaller than the medium's typical pore size.

 Contaminants pass through the depth filter and become trapped; when the pores in the filter become jammed, they must be cleaned with a reverse flow of fluid or replaced with a fresh medium.

 A depth filter is more costly than a surface filter, but it has a longer shelf life.

 The filter media has a high mechanical strength.

When compared to a surface filter cartridge, depth filters absorb more dirt and store more particle. They filter water without causing any pressure loss. These filters are extremely efficient against water pollution and can recover a large number of particles without sacrificing separation performance. Furthermore, they are extremely efficient oil mist collectors. A micron filter is an application of a depth filter.

Microns for filters

Minerals, metals, chemicals, and bacteria are all treated by a water filter. Instead of destroying or sterilising the poisons, these robots capture them. However, before spending money on filters, it's crucial to think about microns.

Molecules are caught in the filter and cannot pass through the particles, depending on the depth of the pore. A micron is a measurement of how efficient a filter is in capturing tiny particles.

 

Cleaning Cartridge filters

Cartridge filter are easier to clean than most other types: simply remove the cartridge, wash it down with high pressure, and let it dry. The cartridge can be immersed in a moderate solution of trisodium phosphate and water to remove oils (1 pound TSP per 10 gallons of water). A stronger version of this solution can be used to remove clay, algae, and plant debris. To eliminate any minute deposits of organic waste, immerse the cartridge in a weak muriatic acid solution (1 part muriatic acid to 20 parts water).

Filter Cartridge Sizes

 

We offer the four most common "industry standard" filter cartridge sizes, referred to by their nominal length of 10", 20", 30" and 40"; sometimes slightly shortened versions are required and that's not an issue, it does not affect pricing.  Often 20"+ sizes consist of multiple 10" cartridges.

How to clean cartridge filter

1. Turn off the system. 

2. Open the filter tank.

3. Remove the cartridge(s) from the tank. 

4. Check cartridges for wear and tear.

5. Remove debris from the cartridge material.

6. Degrease or deep clean the cartridge filter.

7. Reassemble the filter tank.

8. Test the filter’s air pressure. 

 

Advantages of Cartridge filter

1) The surface of the filter cartridge filter collecting efficiency is considerably greater than the previous filter, substantially lowering dangerous material emissions, air purification indicators have achieved a global advanced level, totally replacing the old dust, which was primarily in a backwards condition.

 2) Filter cartridge filter without wear and tear, body with no moving parts, long-term usage does not require maintenance (although disposable cartridge is also very easy) to prevent the old-fashioned dust continually changing media issues, provincial money saving time nor secondary pollution.

 3) The size and weight of the cartridge filter are significantly less than the previous filter with the same specifications, saving construction space and civil load, and reducing infrastructure investment.

4) Low maintenance – most only need cleaning once or twice per season.

 5) Easy to install. There is less plumbing required because there is no backwash piping required.

 6) They generally take up less room.

Disadvantages of Cartridge filter

1) More air pressure when compressed, more difficult of reverse air, less choice of filter material.

2) While there is not much difference between the cartridges filter and filter bag in terms of cost, the price level of automation, use and maintenance.

3) Frequent Cleanings Required. On the downside, cartridge filter do require more frequent cleaning than sand filters. They should be manually cleaned by removing the filter and hosing the filter down. ...

4) High Cost. Cartridge filters aren't cheap.

5) More Difficult to Use.