Pleated Cartridge Filters for Liquid: The Ultimate Guide

Feb 26 2024

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Pleated liquid cartridge filters are essential in many industrial and commercial filtration applications today. These cartridge filters are engineered to remove impurities from the liquid and gases. In this blog, we will dive deep into understanding the Pleated cartridge filter, and how it makes your filtration process smooth and efficient.

What is a Pleated liquid cartridge filter?

Unlike traditional filters, Pleated cartridge filters are made with the folded design of pleated filter media in a cylindrical shape. These filter media are usually made of polyester, polypropylene, or cellulose. Because of pleating, the surface area of the filter increases with an increase in filtration capacity. The housing is usually made of plastic or metal depending on the requirements. This housing helps the filter to hold its place during the process.

Production of these cartridge filters starts with the choosing of the material/media. The choice of material decides the type and quality of the filter and the impurities to be removed. This material is then cut to the desired size, and the pleating process begins. The process involves the back & forth of material in a cylindrical shape. Then these pleats are bonded together using heat or adhesive to keep them together. The prepared pleated filter is then assembled in a filter housing made up of plastic or metal with end caps designed to provide additional support and protect the inner filter from getting damaged during use

Different types of Pleated Cartridge Filter

There are various types of Pleated Cartridge filters depending on the use cases.

Polypropylene (PP) Pleated cartridge filter

Polypropylene is the primary material in this filter. This PP goes under the process of pleating and a cylindrical cartridge is produced with perforation that lets water pass through it after filtration. The ends of these cartridges are sealed with end caps. We at mmp undergo heat sealing instead of the use of adhesive which makes cartridge filters safer for filtration in industries like pharmaceutical, food & beverages. Providing a risk-free and smooth filtration process. mmp’s Pyoorite branded pleated cartridge filters are high-quality pleated cartridge filters available in the market.

Double Open End (DOE):

In a DOE design, both ends of the filter cartridge are open. The cartridge is sealed by placing gaskets or O-rings around the inner and outer edges of the end caps.

DOE cartridges are often used in applications where a secure seal is required, and they are installed into filter housings that can accommodate both ends being open.

Single Open End (SOE):

In an SOE design, one end of the filter cartridge is open, while the other end is sealed. The sealed end typically has a configuration that allows for easy installation and removal from the filtration system.

SOE cartridges are often used in systems where it's more convenient to have one end permanently sealed, and they are commonly installed in filter housings that accommodate this specific design.

How does a pleated filter cartridge work?

Pleated filters excel in surface filtration thanks to their remarkable efficiency and substantial flow rates. By employing a pleated configuration, media with depth attributes that bolster particle retention can be densely packed within the cartridge, maximizing the available surface area for filtration.

The particles rating as low as 0.1 microns and as high as 10 microns get trapped in this filter.

What is the advantage of a Pleated filter cartridge?

We've designed numerous pleated filter cartridges to meet the unique needs of industries like oil and power plants. These pleated cartridges boast expanded filtration areas due to their design, while also being crafted from top-notch materials capable of withstanding diverse conditions effortlessly.

These water filter cartridges offer:

  • Exceptional removal efficiency even at low micron ratings
  • Increased loading capacity and flow rates
  • Options for both nominal and absolute filtration
  • Superior dirt-holding capacity
  • Free from additives
  • Prevention of media migration

Read more: A Practical Guide to Water Filter Cartridge Selection

Industries that use PP pleated filter cartridges

These cartridges are utilized across a spectrum of industries, encompassing chemical processing, water treatment facilities, food and beverage production, healthcare, pharmaceuticals, and beyond.

mmp offers the most suitable filter cartridges

We are one of the leading manufacturers of water and air filters. Our Pyoorite branded PP pleated cartridge filter is carefully designed for enhanced structural stability without sacrificing overall integrity, these cartridges are meticulously crafted from virgin polypropylene, a trusted material renowned for its reliability. Tailored to specific needs, our filters come in both Double Open-End (DOE) and Single Open-End (SOE) designs, each offering unique applications and benefits.

mmp offers these filter cartridges in various lengths and diameters, including 5”, 10”, 20”, 30”, 40”, and 50”. They have an inner diameter (ID) of 27mm and an outer diameter (OD) of 65mm. Available in different micron ratings such as 0.1, 0.2, 0.45, 1, 2, 5, and 10µ, these ratings determine the size of particles the filter can effectively capture.

Engineered to withstand temperatures up to 60°C, these cartridges boast a flow rate of 1m³ per hour per 10” at a pressure of 2.5kg/cm², ensuring efficient filtration without compromising performance.


In the last, pleated cartridge filters have numerous industrial and commercial filtration applications. They are effective in removing impurities from liquids and gases. Its folded design offers a maximum surface area for enhanced filtration. Because of a diverse range of materials, designs and micron ratings cater to specific needs across industries. mmp is one of the reliable filter manufacturers in India. Their Pyoorite Pleated filter cartridges are made under expert supervision and with modern technology. We offer customization as per the requirement of the consumer so that he gets the best fit according to his system. From chemical processing to healthcare, these filters play a crucial role in maintaining product quality and process efficiency. With their high-quality construction and advanced features, pleated cartridge filters from reputable manufacturers like mmp offer a reliable and efficient solution for industries worldwide.