PPS Filter Bags

Description of PPS filter bags

PPS filter bags are made from polyphenylene sulfide (PPS), which is a high-performance thermoplastic polymer, also otherwise known by the proprietary name Ryton© or Procon©. Polyphenylene sulfide filter bags are known for their excellent filtration characteristics, including:

● High Temperature Resistance —— PPS filter bags can operate continuously at temperatures up to 160°C (320°F), with surges up to 190°C (375°F). This makes them ideal for applications where high temperatures are present, such as in incinerators, power generation, cement production, and metal processing.

● Excellent Chemical Resistance —— PPS filter bags are resistant to a wide range of acids, alkalis, and solvents. This makes them suitable for applications where corrosive chemicals are present, such as in the chemical processing and pharmaceutical industries.

● Good Moisture Resistance —— PPS filter bags are also resistant to moisture and hydrolysis. This makes them a good choice for applications where high humidity or wet conditions are present, such as in food processing and wastewater treatment.

● High Mechanical Strength —— PPS filter bags have a high tensile strength and tear resistance, making them resistant to abrasion and tear. This is important in applications where the filter bags are subjected to high levels of wear and tear, such as in the mining and construction industries.

In addition to these filtration characteristics, PPS filter bags also offer a number of other advantages, such as:

● Long Service Life  —— PPS filter bags have a long service life, even in challenging operating conditions. This can lead to significant cost savings over time.

● Easy to Clean and Maintain  —— PPS filter bags are easy to clean and maintain, which helps to reduce downtime and improve productivity.

● Environmentally Friendly —— PPS filter bags are made from a recyclable material, which makes them an environmentally friendly choice.

Scrim-supported felt is used exclusively in the production of Aokai PPS filter bags in order to improve filtration efficiency and to extend the filter bag life.

Specification of PPS Filter Bags

Post-treatment of PPS Filter Bags

● ePTFE Membrane

Adding an ePTFE membrane to a PPS filter bag allows the membrane to act as the filter cake. Dust stays on the surface of the membrane and does not get entrained into the fibers of the filter bag, which lengthens the filter bag life. It also reduces wear and tear, lower maintenance costs, and energy costs due to easy dust cake release during the cleaning cycle.

● Hydro-Oleophobic Coating

This coating adds resistance to water and oils, and improves cake release.

● Singe

Singeing is a finishing process where the surface of the filter media is exposed to a flame or hot gas to burn off the fine and straggly fibers in order to provide a uniform and smooth surface area, which improves dusk cake release, enhanced filtration efficiency, and better air permeability.

The singeing process typically involves passing the fabric over an open flame or through a heated chamber. The heat singes off the protruding fibers without damaging the main structure of the fabric. The process parameters, such as speed and temperature, are carefully controlled to achieve the desired level of smoothness and finish.

● Glazing

Glazing, also known as calendering, is the high-pressure pressing of the fabric by rollers to flatten or smooth the surface. Glazing pushes the surface fibers down onto the body of the filter media to increase and uniform surface life, improve stability, reduce shrinkage, and improve dust cake release.

Application of PPS Filter Bag

Aokai Environtec manufactures high-quality filter bags of virtually any style, configuration, and size for any make of dust collector. We use the in-house custom-designed and manufactured filter media and custom-make the filter bags to your precise specifications to best suit your specific industry, application, and operating conditions. We specialize in designing and manufacturing high-temperature filter media and filter bags. When you choose Aokai, you're choosing uncompromising quality and performance, woven into every stitch. Aokai's advantages include:

Custom-Design & Manufactured Filter Media

Aokai manufactures and stocks hundreds of filter media materials with a complete range of lamination and treatment options. Whether you need filter bags to withstand high temperatures or abrasive, corrosive, and explosive dust, we custom-design and manufacture filter media that best suit your operating conditions.

Experienced in All Major Industries

Aokai serves more than 10,000 customers worldwide in all major industries, such as asphalt mixing, cement, mining & metallurgy, power generation, renewable energy, woodworking, and many other demanding industries. Our engineering teams are experienced and well-trained to handle challenging issues in all major industries.

Custom Made to Precise Specs.

Aokai custom-makes filter bags to your precise specifications, such as dust collector styles, physical configurations, and sizes. We offer a variety of bag top and bottom attachment options ensuring a perfect fit for your equipment.

Expert Craftsmanship

Aokai's skilled technicians utilize cutting-edge sewing techniques and precise finishing touches, creating filter bags that are seamlessly durable and leak-proof. Our filter bags are truly engineered solutions, built to withstand demanding environments and deliver exceptional filtration performance, saving you time, money, and resources.

On-Time Delivery

To ensure on-time delivery, Aokai manufactures everything in-house, including filter media, filter bags, and filter cages. With a five million filter bag per annum capacity, we deliver on time.