53C0945 Fuel Filter Water Separator

I. Core Summary

• Brand: Xuman

• Model:53C0945

• Primary Application:Compressed Air Post-Treatment Systems, used in applications requiring high air quality.

• Core Function: As a high-efficiency oil removal filter, it removes oil vapor and odors from compressed air.

• Common Names:Activated Carbon Filter; Oil Vapor Filter.

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II. Detailed Function Introduction and Working Principle

53C0945 filter element belongs to the adsorption filter category. Its working principle is entirely different from previous mechanical coalescence:

1. Physical Adsorption: The filter element is filled with a large amount of activated carbon granules. Activated carbon possesses an extremely high specific surface area and abundant microporous structure.

2. Chemical Adsorption: When compressed air passes through the filter element, oil vapor in the air (which exists as gas molecules and cannot be removed by ordinary coalescing filters) and hydrocarbon odors are firmly adsorbed onto the surfaces of the countless micropores of the activated carbon through intermolecular forces.

3. Final Output: After passing through this filter element, the oil vapor content in the compressed air is reduced to an extremely low level, resulting in truly oil-free, odorless pure air.

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III. Key Features and Parameters

• Filtration Target: Primarily removes oil vapor and odors. It typically does not have or has very weak ability to coalesce liquid oil and filter particles. Therefore, it must be installed after a pre-filter.

• Filtration Efficiency: The removal efficiency for oil vapor is typically measured by  0.003 mg/m³, meaning it can control the oil content in the outlet air to below 0.003 milligrams per cubic meter, meeting air quality standards.

• Pressure Difference (Pressure Drop): Initial pressure drop is very low.

• Life Indicator: Cannot determine lifespan by pressure drop. Because activated carbon works by relying on its adsorption surface area, it becomes ineffective once all micropores are filled with oil molecules, at which point the pressure drop may show almost no change. Its lifespan is usually determined by operating time and upstream oil load.

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IV. Main Application Scenarios (Installed at the very end of the filtration chain)

53C0945 filter element is a final barrier in the compressed air purification process, used in industries with extreme air quality requirements:

1. Food and Beverage Industry: Prevents oil vapor contamination when compressed air contacts products (e.g., bottle blowing, mixing, packaging).

2. Pharmaceutical and Medical Device Manufacturing: Complies with GMP regulations, ensuring a pure production environment and preventing product contamination.

3. Chemical and Electronics Industry: Protects精密 chemical reaction processes or semiconductor manufacturing equipment, avoiding product defects caused by extremely trace amounts of oil.

4. Breathing Air Systems: Provides safe, clean air for personnel who need to breathe compressed air (e.g., firefighters, divers, factory maintenance personnel), where removing harmful oil vapor is crucial.

Position in the Filtration System

Correct installation sequence is key to its effectiveness. A standard three-stage filtration system sequence is as follows:

1. First Stage (Coarse Filtration):P-class filter (e.g., 53C0945) - Coalescing filter, removes most liquid water, oil, and larger particles.(Protects the dryer and downstream filters)

2. Second Stage (Drying):Adsorption Dryer - Removes water vapor.

3. Third Stage (Fine Filtration):D-class filter (dust filter, e.g., 53C0945) - Removes desiccant dust.(Sometimes this stage is combined with the first stage or omitted)

4. Fourth Stage (Final Filtration):A-class filter (activated carbon filter, e.g., P584980) - Removes oil vapor and odors.(Must be installed after pre-filters)

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V. Replacement Cycle and Precautions

• Replacement Cycle: This is a lifetime-type filter element, cannot be judged by pressure drop. The replacement cycle depends on:

  • Oil content in the upstream air: The better the performance of the pre-filter, the longer its lifespan.

  • Air flow rate and operating time.

  • Manufacturers usually recommend a fixed time (e.g., 4000 hours or 1 year), but a more scientific method is to regularly test the downstream air quality (e.g., using detection tubes or instruments).

• Replacement Signals:

  • Oil odor is detected at downstream usage points or oil content exceeds standards.

  • Predetermined operating time is reached.

• Precautions:

  • Absolutely prohibit replacement under pressure; the system must be completely depressurized.

  • Exercise extreme caution during installation to avoid leakage of activated carbon granules into the downstream piping.

  • Used filter elements are hazardous waste because they have adsorbed a large amount of oil and must be professionally disposed of in accordance with local environmental regulations.