The Domnick Hunter K330AA is a precision filter cartridge model from the British brand Domnick Hunter (now part of Parker Hannifin). This cartridge belongs to their classic OIL-X Evolution or similar series and is primarily used in compressed air systems to remove oil mist, water mist, and solid particles.
The following is key information about this model:
1. Filtration Grade and Performance
Filtration Accuracy: 0.01 microns (μm).
Filtration Grade: AA (High-efficiency oil removal/coagulation filtration).
According to industry standards, AA-grade filters are typically used to remove liquid oil mist, water mist, and solid particles larger than 0.01 microns in diameter from compressed air.
Residual oil content is typically controlled below 0.01 mg/m³ (i.e., 0.01 ppm).
Main Function: Coagulation filtration. Using a special oleophobic and hydrophobic fiber medium, tiny oil and water droplets are condensed into larger droplets, thus separating them from the airflow.
2. Technical Parameters and Features
Applicable Medium: Compressed air.
Operating Pressure: Typically 1.0 MPa (approximately 10 bar), refer to the rated pressure of the casing for specific pressure.
Operating Temperature: Generally between 0-80℃.
Material Structure: Utilizes borosilicate glass nanofiber material, possessing high porosity (approximately 96%) and high dirt-holding capacity.
Possesses oleophobic and hydrophobic properties, preventing liquid adhesion to the fibers and reducing pressure drop.
An internal sponge layer is typically included to prevent secondary carryover, ensuring smooth drainage of condensed liquid. 3. Application Scenarios
K330AA filter cartridges are typically installed at the end of compressed air preparation systems as high-precision protective filters. They are suitable for industries with high air quality requirements, such as:
Food and Beverage Processing
Pharmaceuticals and Biotechnology
Precision Instruments and Electronics Manufacturing
Painting and Coating Processes