Skip to content 
Sorb Cassette Corrosion Control Filter
High-Performance Chemical Air Filtration: Sorb 18 Cassettes Corrosion Control Filter
Our Sorb 18 Cassette Corrosion Control Filter are engineered for heavy-duty molecular air purification. Designed with a durable, V-shaped plastic frame, these cassettes are packed with high-porosity activated alumina impregnated with potassium permanganate (KMnO4).
This specialized media provides superior oxidation potential, making it the industry standard for neutralizing corrosive contaminants. Whether you are managing air quality in a petrochemical refinery or a paper and pulp facility, our Sorb 18 solution ensures your sensitive electronics and personnel are protected from high-toxicity environments.
Our Key Features
- Safe ,Non Toxic, nonhazardous and non –desorbing air filtration
- High Contaminants captured
- Prevent bacteria or fungal growth
- Corrosion Control: Essential for protecting control rooms and data centers in environments with high acid gas concentrations.
- Maximized Surface Area: The V-bank design optimizes airflow while ensuring maximum contact time with the impregnated media.
- Industrial Grade: Built to withstand the rigorous demands of the wastewater treatment, mining, and chemical processing industries.
Technical Data
- Dimensions WxHxD: 439x296x154.
- Designed to be placed two next to each other, with a width of 60cm.
- Weight (empty): 1.60 Kg
- Volume: 15 liters
- Material: 100% recyclable polystyrene
- Working temperature: Maximum 55ºC
- Relative humidity: 20-99%. Depending on the granulate used
- Color: Black
Comparison Table: Sorb 18 Corrosion Control Filter vs. Purafil Equivalent
| Feature | K Filter Sorb 18 Cassette Corrosion Control Filter | Purafil Equivalent (Select Media) |
| Media Type | Activated Alumina + KMnO4 | Purafil®* Select (Active Alumina + 4% KMnO4) |
| Frame Design | V-Shape Plastic Cassette | High-Impact Plastic PPA/PSA Cassette |
| Primary Target | H2S, SOx, Formaldehyde | H2S, Sulfur Dioxide, Nitric Oxide |
| Standard Size | 24″ x 12″ x 12″ (Nominal) | 24″ x 12″ x 12″ (Standard) |
| Removal Capacity | High Oxidation Potential | 99.5% Initial Removal Efficiency |
______________________________________________________________________________________________________________________________________________
Frequently Asked Questions: Sorb 18 Corrosion Control Filter Chemical Filtration
1. What is the Sorb 18 Cassette Corrosion Control Filter specifically designed for?
The Sorb 18 Cassette is a high-capacity molecular air filter engineered to remove gaseous contaminants from industrial environments. It is the primary defense mechanism against corrosion in control rooms, motor control centers (MCCs), and data centers located near petrochemical plants, pulp and paper mills, and wastewater treatment facilities
2. How does the Sorb 18 differ from a standard carbon filter?
While standard activated carbon relies on physical adsorption (trapping gas in pores), the Sorb 18 uses chemisorption. The media consists of activated alumina impregnated with potassium permanganate (KMnO4). This chemical agent oxidizes target gases like Hydrogen Sulfide (H2S), turning them into harmless solids. Unlike carbon, it will not “off-gas” or release contaminants back into the air once trapped
3. Which gases are effectively removed by Sorb 18?
The Sorb 18 is highly effective against a broad spectrum of acidic and corrosive gases, including:
- Hydrogen Sulfide (H2S)
- Sulfur Dioxide (SO2)
- Nitric Oxide (NO)
- Formaldehyde
Lower Molecular Weight Mercaptans
4. Does the Sorb 18 meet ISA Standard 71.04-2013?
Yes. The Sorb 18 is a critical component for facilities aiming to maintain G1 (Mild) environmental conditions as defined by ISA Standard 71.04-2013. By removing corrosive gases, it prevents the “creeping corrosion” on silver and copper components that leads to electronic equipment failure.
5. How do I know when to replace the Sorb 18 Cassette?
The media inside the Sorb 18 undergoes a visual color change as it works. New media is a bright purple; as the potassium permanganate is consumed through oxidation, it turns brown, and finally charcoal black when exhausted. We recommend a Media Life Analysis (MLA) every 6 months to track remaining capacity accurately.
6. Can the Sorb 18 be used in humid environments?
Yes, the activated alumina substrate is designed to maintain structural integrity in high-humidity industrial settings. However, for optimal chemical efficiency, it is best used in environments where relative humidity is between 40% and 70%.
7. Is the Sorb 18 compatible with Purafil®* Side Access (PSA) systems?
Absolutely. The Sorb 18 is a direct-fit equivalent for the Purafil®* standard PPA/PSA cassettes. It can be installed into existing housing units without any modifications to the tracks or seals.
*Brand name is using only for reference only.
