Precision Compressed Air Filter for Air Compressor Purification

Product Introduction

Our precision compressed air filter is designed for compressed air purification and cooling treatment. Matched with Dust Collector Filter, Air compressor filter and other supporting filter elements, it forms a complete compressed air purification system. This series of precision filters can intercept solid particles, water droplets, oil mist and other aerosol impurities in compressed air through physical separation. It includes carbon steel blue casing type and stainless steel sanitary type, with rich specifications covering flow from 17.7 Nm³/min to 252 Nm³/min. Multiple filtration grades including C, T, A, F, H are optional, meeting different requirements for water removal, oil removal and deodorization in pneumatic systems, spraying, food and pharmaceutical industries. It is widely used as pre-filter and main line filter of air compressor post-treatment equipment.

Working Principle

When compressed air carrying solid and liquid impurities enters the precision filter, the internal filter cartridge will intercept the particles. The intercepted liquid and impurities will condense on the inner and outer surface of the filter element. Under the action of gravity, liquid droplets and contaminants sink to the bottom of the filter housing, then discharged automatically via auto drain valve or manual drainage. In the standard compressed air purification sequence: Air compressor → after-cooler → air storage tank → C grade water-oil separator → refrigerated dryer → T grade main line filter → A grade oil mist filter → H grade activated carbon deodorizing filter. Step-by-step filtration guarantees the cleanliness of final compressed air.

Grade Performance & Application

Technical Specification Table

Core Advantages

Multi-stage graded filtration design, C/T/A/F/H five grades optional, can match different air cleanliness requirements.

Optional carbon steel coating and stainless steel sanitary housing, suitable for general industrial and food & pharmaceutical sanitary working conditions.

Large flow design, compact structure, easy installation and maintenance, supporting quick replacement of filter cartridges.

Equipped with automatic drain port, efficiently discharge condensed water and oil liquid, reduce manual maintenance work.

Compatible with standard air compressor post-treatment system, can be combined with Dust Collector Filter and Air compressor filter to build complete air purification solution.

Application Scope

Air compressor post-treatment system, matched with refrigerated dryer and adsorption dryer

Pneumatic tools, pneumatic actuators, automatic control production line air supply

Automotive, furniture spraying workshop, painting air supply

Food, beverage, pharmaceutical fermentation, sterile breathing gas preparation

Electronic semiconductor manufacturing, nitrogen generator supporting purification

Laser cutting, precision instrument industry clean compressed air supply

Installation Guidance

Follow the standard installation sequence: Air compressor → after-cooler → air storage tank → C grade filter → refrigerated dryer → T grade filter → A grade filter → H grade filter. Install according to airflow direction mark on the housing. Do not reverse installation. Regularly check pressure drop and drain status. Replace filter cartridges timely when pressure drop exceeds the rated value.

FAQs

Q1: What is the difference between A grade and F grade precision filter?

A: A grade filter is for conventional oil removal, suitable for painting and general pneumatic system. F grade ultra-high efficiency filter can capture ultra-fine particles down to 0.01μm, used for high-standard oil-free air supply for electronic process.

Q2: Does H grade activated carbon filter remove water?

A: H grade mainly removes oil mist, hydrocarbon residues and odor. It should be installed after water removal filters and dryers, not for water removal.

Q3: Can stainless steel precision filter be used in food industry?

A: Yes, stainless steel sanitary precision filter meets sanitary requirements for food and pharmaceutical production.

Q4: How to judge when to replace the filter element?

A: Monitor the pressure difference before and after the filter. When the pressure drop rises to the specified value, the filter cartridge needs to be replaced.

Q5: Can multiple grades of precision filters be used in series?

A: Yes, series installation of C-T-A-H is the most common configuration for high cleanliness compressed air system.

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