Industrial filter bags

Industrial filtration systems are built to meet the specifications of your water purification needs. Choosing the correct filtration bag will assist in the removal of unwanted particles and microorganisms from your application. Depending on your application requirements, several styles of filter bags can be used.

Filter bag considerations include micron ratings, filter bag material and fabric requirements, and cost objectives. Since each industrial filtration system is unique to its direct application, the filter bags used within the system must also align with application parameters.

What is an Industrial Filtration System Filter Bag?

Bag filtration is among the most used ways to filter large quantities of water and other liquids. Depending on the liquid and application, some particle types may not need to be filtered, while other contaminants require at or near 100% removal. An absolute filter bag is often used for applications that require the removal of all particles. Absolute filters utilize a specific pore rating size that traps particles of a particular size or larger with defined efficiency.

Considerations When Choosing a Filter Bag

Several considerations should be met prior to choosing the right filter bag for your application. Each of the following characteristics must be considered to find the filter bag that will suit your application requirements.

  • Particle size
  • Flow rate
  • Pressure
  • Process conditions
  • Filter media types
  • Filter housing

Particle Size

The smaller the micron rating, the smaller the solid particles that will be prevented from passing through liquid filters. There are two ways to measure  Industrial filter bag the size and amount of particles removed, nominal and absolute. A nominal pore size rating refers to a filter capable of preventing the passage of an undefined percentage of solid particles greater than the stated pore size. Absolute filtration refers to retaining all particles of a certain pore size. For example, a 20 µm absolute rating means all particles with a 20 µm or larger pore size will be retained at 99% during one filtration process.

Flow Rate

The filtering area size will determine the speed at which the liquid flows through the filter bags. The liquid's thickness, material type, and viscosity will also affect the flow rate. Filter bags that are too small or with a material thicker than recommended can decrease the flow rate.

Pressure

Every filter bag is manufactured with a maximum operating pressure. If the maximum working pressure is exceeded, the filter can be damaged. Filter bags should be serviced when the pressure differential is 15 PSID.. Filter replacement or regeneration occurs over time once the filter becomes clogged.

Process Conditions

Process conditions are essential in determining the correct filter solution based on your specifications. Based on your project requirements, filter bags often require proper temperature resistance and high-pressure regulation, while process parameters also play a role in the specific sizing of the system.

Filter Media Types

Filter bags provide process filtering for water, paints, food liquid, chemicals, solvents, and more. The three basic media types include needle felts, woven monofilament meshes, and melt blown. Typical filter materials used within filter bags include:

  • Polypropylene
  • Polyester
  • Polyamide (nylon)

Filter Housing

Filter housings are casings that fit around a filter cartridge or bag in a liquid or gas stream. Filter bags are used to process and filter liquids in various housings. The application and liquid type will determine the housing material required. Housing material options include:

  • Stainless steel
  • Carbon steel
  • Aluminum
  • Exotic alloys
  • Plastic

Locate the Industrial Filtration System Filter Bags You Need at Rosedale Products

Rosedale Products is your source for high quality filter bags and components. Our filter bags are designed to remove contaminants and debris from liquids based on their specific micron ratings. Contact us for more information regarding our filter bag options, check out our replacement filter bag calculator, or learn more about Rosedale Products today!

 
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