Alternative Air Compressor Oil Gas Separation Filter ZS1087415

Technical Parameters

Item	Specification
Product Name	Air Compressor Oil Separator Filter Element
Filter Type	Oil Separator / Oil Mist Separator
Application	Screw Air Compressor System
Filtration Object	Oil Mist, Dust, and Impurities
Filtration Accuracy	0.1μm – 3μm
Filtration Efficiency	99.9%
Residual Oil Content	≤3ppm
Filter Media	High Efficiency Fiberglass
Support Layer	Carbon Steel Perforated Plate / Stainless Steel Mesh
End Cap Material	Galvanized Steel
Seal Material	NBR / Fluororubber
Working Pressure	0.6 – 1.6 MPa
Operating Temperature	-10°C to +120°C
Initial Pressure Drop	≤0.02 MPa
Service Life	3000–6000 Hours
Structure Type	Pleated Cylindrical Structure
Installation Method	Flange Type
Compressor Type	Rotary Screw Air Compressor
OEM Service	Available
Customization	Size, Material, and Efficiency Customizable

 

Product Structure

 The oil separator filter element is constructed with multi-layer fiberglass media, reinforced metal support structure, conductive anti-static components, and high-quality sealing materials to ensure efficient oil-air separation, low pressure loss, and long-term stable operation in industrial air compressor systems.




 

Product Features

 

1. ►  High Filtration Efficiency

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• Advanced fiberglass media effectively separates oil mist and contaminants from compressed air.
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1. ►  Low Oil Carryover

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• Residual oil content can be controlled at a very low level to ensure cleaner compressed air output.
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1. ►  Durable Structure

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• Reinforced support mesh and high-strength metal end caps provide excellent pressure resistance and operational stability.
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1. ►  Energy Saving Design

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• Low-pressure drop design helps reduce energy consumption and improve compressor efficiency.
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1. ►  Reinforced Inner Support Core

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• The inner perforated metal core enhances structural strength and prevents collapse under high-pressure operation.
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1. ►   Protective Outer Mesh

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• The external protective layer improves pressure resistance and protects the filter media from mechanical damage.
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1. ►   High-Strength Metal End Caps

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• Durable galvanized steel end caps ensure stable assembly and long service life.
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1. ►  High Quality Sealing Gasket

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• NBR or Viton sealing materials provide excellent airtight performance and prevent leakage.
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1. ►  Conductive Copper Strip Design

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• Integrated conductive strips help eliminate static electricity and improve operational safety.
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1. ►  Long Service Life

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• Large dirt holding capacity extends maintenance intervals and reduces replacement frequency.
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1. ►  OEM & Custom Service

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• Custom dimensions, filtration accuracy, and structure are available according to customer requirements.

If you have any needs, please send us the part number or size.

Working Principle

Working Principle of Air Compressor Oil Separator Filter

The oil separator filter is designed to separate oil mist from compressed air in screw air compressors.

The compressed air mixed with lubricating oil enters the separator tank first, where large oil droplets are removed by gravity. The remaining fine oil mist then passes through the glass fiber filter media inside the oil separator element.

Through interception, diffusion, and coalescence, tiny oil particles combine into larger droplets, which flow back to the lubrication system through the oil return line. Finally, clean compressed air with low residual oil content is discharged from the compressor system.

Main functions:

• ♦ Oil mist separation
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• ♦ Oil recovery
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• ♦ Air purification
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• ♦ Reducing oil consumption
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• ♦ Protecting downstream equipment

Advantages

01

We are certified under ISO 9001 and hold CE markings, spanning a massive 26,000 square metres, demonstrating substantial industrial capacity and a robust operational foundation. Our facility gives us the power to handle large orders, meet tight deadlines, and deliver at scale – without compromising on quality.

02

We reflect our adherence to internationally recognised quality management systems and advanced manufacturing technologies. We don’t just follow standards – we lead with them. Our advanced technology ensures your products are built right, from start to finish.

03

With more than 20 years of export experience, we have developed deep expertise in global logistics, cross-border compliance, and serving diverse international markets. That means smoother logistics, fewer surprises, and a partner who truly understands your market.

04

A fully established quality inspection system is in place throughout the production process, ensuring consistent, reliable product quality with every shipment. Our complete in-house quality inspection system catches issues before they reach you. Every product is checked, tested, and verified to ensure you receive nothing but the best.

Our factory

 

Henan Top E.P Equipment Co., Ltd. is an integrated manufacturer specializing in R&D, production, and sales of high-quality filter cartridges and filtration solutions. With a 26,000-square-meter production facility and over 20 years of industry experience, we have established ourselves as a reliable leader in the filtration industry.

We have participated in numerous international exhibitions and built long-term export experience, serving clients worldwide. Our commitment to excellence is backed by multiple patents, CE certification, and ISO 9001 accreditation, ensuring that our products meet stringent global standards.

Our robust production system, combined with advanced manufacturing equipment, enables us to deliver consistent quality and on-time performance. From responsive service to full process support, every detail is well implemented – making us the trusted partner you deserve in the filtration industry.

Brief Quality Inspection Process
 

Here's a brief version of the quality inspection process for air compressor oil separator filter elements.
 

1. 1. Visual & Dimensional Inspection

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  • Visual check – no cracks, rust, deformation, or contamination.

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  • Dimension measurement – verify diameter, height, sealing surface, and interface sizes.
  
  
  

1. 2. Basic Performance Tests

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  → Initial pressure drop – measured at rated flow (typical pass ≤0.02 MPa).

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  → Flow characteristics – confirms flow capacity without excessive resistance.
  
  
  

1. 3. Filtration & Separation Performance

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  ► Filtration efficiency – particle counting upstream/downstream (target ≥99% for certain particle sizes).

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  ► Oil mist separation rate / residual oil content – key for air quality, usually ≤5–6 ppm.

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  ► Dirt holding capacity – indicates service life; measured by adding contaminants until terminal pressure drop.
  
  
  

1. 4. Structural & Durability Tests

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  ♦ Sealing integrity – air pressure decay or bubble test to detect leaks.

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  ♦ Burst/pressure resistance – confirms mechanical strength.

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  ♦ Material compatibility – submerged in hot lubricant to check swelling, softening, or degradation.

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  ♦ Fatigue life – simulated pressure cycling and vibration to validate long-term reliability.
  
  

FAQ

 

Q1: Can I clean and reuse a filter element?

A1:For air intake filters: Limited cleaning is permissible under certain conditions. If the element is not damaged, you may tap the end faces against a flat surface to dislodge heavy dry dust, then blow compressed air (at less than 0.28 MPa / 40 psi) from the inside outward, keeping the nozzle at least 25 mm (1 inch) from the filter paper. However, a filter element should be cleaned no more than twice and should never be used beyond one year in total. High-pressure air guns (>40 psi) will damage the delicate filter media and cause filtration failure.

For oil filters and oil-air separators: Never attempt to clean or reuse these elements. Oil filters trap fine solid particles within a depth medium that cannot be cleared by any field method. Oil-air separators rely on precise fiber structure for coalescence; cleaning will destroy that structure. Both must be replaced with new elements.

Q2: How do I know when an oil filter or oil-air separator is clogged?

A2:Most compressors are equipped with differential pressure (DP) indicators or gauges.
Typical warning thresholds:
 

• ♦ Oil filter: When DP exceeds the specified limit (often around 1.5–2 bar / 22–29 psi), the indicator triggers a service alert

• ♦ Oil-air separator: Normal initial DP is typically 0.17–0.3 bar (2.5–4.4 psi). If DP exceeds 1 bar (14.5 psi), the separator must be replaced immediately. Many systems automatically shut down when separator DP reaches 15 psi (approx. 1 bar)

⚠️ Critical note: Do not rely solely on DP indicators. A torn filter element may show no increase in DP at all, yet contaminants are freely passing through. Always follow the manufacturer's time-based replacement schedule as the primary maintenance trigger.

Q3: What causes high differential pressure (clogging) in an oil-air separator?

A3:Premature separator clogging typically results from:

• ► Inefficient air intake filter — allowing excessive dust to enter the compressor → that dust ends up in the oil and loads the separator.
  
  

• ►  Degraded or unsuitable lubricating oil — oil that has oxidized, formed varnish, or picked up contaminants
  
  

• ►  Water contamination — indicated by rust deposits in the separator tank
  
  

• ►  Excessively high operating temperatures — causing oil to thermally degrade and form solid deposits (>100–110°C is problematic)

Workshop Show

Application field

Machining

Provides a clean air supply for CNC machine tools, laser cutters, and pneumatic fixtures, preventing impurities from clogging precision nozzles or damaging spindles.

Petrochemicals

It supplies oil-free and dust-free air to pneumatic control valves and instrumentation systems in refining and fertilizer production, thereby preventing control system failures. Additionally, it is utilized for gas conveyance within process workflows.

Energy and Power

Filter elements ensure the stable operation of critical equipment—such as gas turbines and pneumatic instrumentation—in harsh environments, with a primary focus on protecting pneumatic devices and guaranteeing process quality.

Pharmaceutical

Pneumatic actuators for sterile filling lines, purified air for fermentation processes, and systems for tablet conveying and blister packaging often require the installation of multi-stage precision filtration—or even activated carbon filter elements.

Food and beverages

Used for bottle blowing (PET bottle molding), material conveying (such as flour and powdered sugar), packaging and sealing, and oxygen supply to fermentation tanks. The filter elements must be capable of removing bacteria and oil to prevent product contamination and off-odors.