As a process engineer with over 15 years at KOSA Filter, I've seen firsthand the challenges that corrosion resistance and fugitive-emission control present in high-purity industries. Our Liquid Filtration product line is designed to address these issues head-on, ensuring reliable performance in demanding chemical and petrochemical applications.
Critical Material Selection for Corrosion Resistance
At KOSA, we prioritize material selection to ensure our filters stand up to aggressive chemicals. Our sanitary filter housings are fabricated from 316L stainless steel, which offers superior corrosion resistance compared to standard 304 stainless steel. This alloy selection is critical for maintaining integrity in environments where chlorides and other corrosive substances are present. We also offer higher alloy options like Hastelloy and titanium for even more demanding applications.
Specifying the Right Filtration Media
Choosing the appropriate filtration media is crucial for achieving desired process outcomes. Our product line includes a variety of options, from depth filters to absolute-rated membrane filters. For instance, our 0.2 µm absolute-rated membranes ensure removal of particles down to 0.2 microns, providing a reliable barrier against contaminants. We also offer membranes with <1 ppb extractables, ensuring they do not contribute to product contamination.
Here are some of the media types we commonly specify:
- String-wound depth filters for general-purpose filtration
- Pleated filters for high dirt-holding capacity
- Membrane filters for absolute particle removal
- Activated carbon filters for adsorption of organic contaminants
Design for Fugitive-Emission Control
Fugitive emissions are a significant concern in chemical and petrochemical processing. Our filter housings are designed with fugitive-emission control in mind. We adhere to ISO 15848 standards for valve and actuator emissions, ensuring that our products meet or exceed industry requirements. Additionally, our housings feature double O-ring seals and other design features to minimize the risk of leaks.
We also offer ATEX-certified housings for use in explosive atmospheres, providing an extra layer of safety in hazardous environments.
Compliance with Industry Standards
Compliance with industry standards is non-negotiable in high-purity applications. Our products meet or exceed standards such as ASME BPE 2019 and 3-A Sanitary Standard 2022. These standards ensure that our filters are designed and manufactured to the highest quality, providing reliable performance in critical processes. We also perform extensive chemical compatibility testing to ensure our filters can withstand the specific chemicals used in your process.
Real-World Application: A CDMO's Corrosion Challenge
A contract development and manufacturing organization (CDMO) was struggling with corrosion issues in their filtration system. They were using standard 304 stainless steel housings, which were failing within months due to chloride-induced corrosion. We recommended upgrading to our 316L stainless steel housings, which have since provided over two years of reliable service without corrosion issues. This switch also improved their filtration efficiency, resulting in >99.9% recovery of valuable product.
I encourage you to reach out to our application engineers to discuss your specific needs. We're here to provide technical expertise and support to ensure your filtration system meets your process requirements.
Related product silos: LIQUID FILTRATION, DUST FILTRATION, CONTROLVALVE, HEAT EXCHANGER.