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- Ingersoll Rand
- 47572170001 23545841
- Air/Oil Separator
- USA
- 375 mm
- 7.5 kg
- Xiamen, China
- New & In Stock
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Product Overview
The Ingersoll Rand 47572170001 23545841 Air/Oil Separator is a replacement separator element for compatible Ingersoll Rand rotary screw air compressors, including selected RS-series machines. During compression, lubricant mixes with the air to seal the screw elements, reduce friction and carry away heat. The separator element removes most of this entrained oil from the compressed-air stream before the air continues toward the aftercooler and discharge system.
The element uses a coalescing filtration process. Fine oil droplets carried by the compressed air collect on the separation media, combine into larger droplets and drain back into the compressor’s oil recovery circuit. This helps limit oil carryover into downstream piping and equipment while allowing the recovered lubricant to be reused within the compressor.
Separator condition affects both compressed-air quality and compressor operating efficiency. A worn or damaged element may allow excess oil into the discharge air, while a loaded element can increase pressure drop across the separator vessel. Correct part identification and timely replacement are therefore important when servicing compatible compressor systems.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Ingersoll Rand |
| Part Number | 47572170001 |
| Reference Number | 23545841 |
| Product Type | Air/Oil Separator |
| Component Type | Separator Element |
| Equipment Category | Rotary Screw Air Compressor |
| Separation Method | Coalescing filtration |
| Primary Function | Separates entrained lubricant from compressed air |
| Installation Location | Compressor separator vessel |
| Oil Recovery Function | Returns separated oil to the compressor oil circuit |
| Compatible Compressor Family | Selected Ingersoll Rand RS-series compressors |
| Diameter | 375 mm |
| Weight | 7.5 kg |
Product Features
- Coalescing oil separation: Captures fine oil aerosols carried by compressed air and combines them into larger droplets for recovery.
- Reduced oil carryover: Helps limit lubricant reaching downstream compressed-air equipment when the element is operating correctly.
- Oil recovery support: Works with the separator vessel’s oil return arrangement to return recovered lubricant to the compressor.
- Pressure-drop management: A clean, correctly specified element helps maintain the intended flow resistance through the separation stage.
- Compressor-specific replacement: Provides a defined part reference for maintenance of compatible Ingersoll Rand compressor installations.
- Continuous-operation suitability: Supports separator maintenance in industrial compressor systems operating for extended periods.
- Downstream equipment protection: Helps reduce oil contamination in discharge piping, air treatment equipment and connected pneumatic systems.
- Service planning support: Allows maintenance teams to schedule replacement based on the compressor’s service requirements and operating conditions.
Working Principle
In an oil-injected rotary screw compressor, air and lubricant mix during the compression process. The resulting mixture enters the separator vessel, where the 23545841 element separates oil from the compressed air before the air leaves the vessel.
As the mixture passes through the coalescing media, fine oil droplets are captured and combine into larger droplets. The separated oil collects and drains through the designed recovery path, while the compressed air continues downstream. This process reduces the quantity of lubricant carried into the discharge system.
The element must maintain both effective separation and suitable airflow. If the media becomes restricted, pressure drop can rise and increase the energy required to deliver compressed air. If the element is damaged or incorrectly installed, oil carryover may increase. A suitable replacement must match the compressor’s separator vessel, sealing arrangement and required flow capacity.
After replacement, technicians should inspect the sealing surfaces, confirm that the element is seated correctly and verify the oil recovery connection. Operating checks should include monitoring separator differential pressure where available and checking the discharge system for abnormal oil carryover.
Role in an Ingersoll Rand Compressor Air/Oil Separation Architecture
The 23545841 separator element sits inside the compressor’s separator vessel. It separates entrained lubricant from compressed air and works with the vessel, oil recovery circuit and downstream cooling equipment to maintain the intended air and oil flow paths.
| System Component | Function | Relationship to the Air/Oil Separator |
|---|---|---|
| Compressor Airend | Compresses air and mixes it with injected lubricant | Supplies the air-oil mixture to the separator vessel |
| Separator Vessel | Receives the compressed air-oil mixture | Houses the separator element |
| 23545841 Air/Oil Separator | Removes entrained oil from compressed air | Performs the primary coalescing separation function |
| Oil Recovery Line | Returns separated lubricant to the compressor | Carries recovered oil from the separator assembly |
| Oil Scavenge Components | Help remove accumulated oil from the separator element’s recovery area | Support oil return where fitted |
| Minimum Pressure Check Valve | Maintains minimum internal pressure and limits reverse flow | Works within the compressor’s discharge and separation arrangement |
| Aftercooler | Reduces the temperature of compressed air | Receives air downstream of the separation stage |
| Oil Filter | Removes contaminants from circulating lubricant | Protects the oil circuit separately from the air/oil separator |
| Air Filter | Removes airborne particles from incoming air | Protects the intake side before compression |
| Differential Pressure Monitoring, where fitted | Indicates pressure difference across the separator | Helps identify increasing separator restriction |
Industrial Applications
| Application | Operating Requirement | Role of the 23545841 Separator |
|---|---|---|
| Manufacturing Plants | Supply compressed air with controlled lubricant carryover | Separates oil from the compressed-air stream |
| Automotive Production | Maintain suitable compressed-air quality for pneumatic equipment | Helps reduce oil contamination in the discharge system |
| Metalworking Facilities | Support reliable compressor operation for production machinery | Maintains the air/oil separation stage |
| Packaging Operations | Limit lubricant carryover into downstream compressed-air equipment | Supports separation before air distribution |
| Petrochemical Facilities | Maintain compressor performance in industrial utility systems | Provides the separator element for compatible compressor configurations |
| Textile and Paper Plants | Support continuous compressed-air supply | Helps maintain the intended separation and oil recovery process |
| Industrial Air Stations | Supply compressed air to multiple users | Reduces oil carryover before downstream air treatment |
| Compressor Maintenance Workshops | Restore separation performance during scheduled service | Provides a defined replacement reference for compatible equipment |
Installation and Maintenance
- Verify the part reference: Confirm that 23545841 matches the compressor model and installed separator vessel configuration.
- Shut down the compressor: Follow the approved lockout and isolation procedure before opening the separator assembly.
- Relieve internal pressure: Ensure that the separator vessel and associated circuits are fully depressurized according to the equipment service procedure.
- Allow the system to cool: Wait until the separator assembly and lubricant reach a safe temperature for maintenance.
- Inspect the separator vessel: Check the vessel, cover, mounting surfaces and connections for damage, corrosion or signs of leakage.
- Remove the used element carefully: Prevent accumulated oil and contamination from entering clean oil-return or compressed-air passages.
- Check the sealing surfaces: Inspect the cover and seating areas for residue, damage or conditions that could allow air or oil to bypass the element.
- Inspect the oil recovery path: Check the relevant scavenge line and fittings for blockage, damage or incorrect routing.
- Install the replacement element: Fit the correct separator element and seal arrangement according to the compressor’s service instructions.
- Reassemble the vessel: Secure the cover and connections using the specified tightening procedure and torque requirements.
- Verify operation after servicing: Restart the compressor according to the approved procedure and check for leaks, abnormal pressure drop and signs of excessive oil carryover.
- Record the maintenance: Document the replacement reference, operating hours, inspection findings and post-service operating checks.
Related Components
| Component | Function | Relationship to the Air/Oil Separator |
|---|---|---|
| Separator Vessel | Contains the compressed air-oil mixture and houses the element | Provides the installation location for the separator |
| Separator Cover Seal | Seals the vessel after maintenance | Helps prevent external leakage and internal bypass |
| Oil Recovery Line | Returns separated oil to the compressor | Supports recovery of lubricant collected by the element |
| Scavenge Tube and Fittings | Carry recovered oil from the separator assembly | Should be checked for restriction during servicing |
| Minimum Pressure Check Valve | Maintains required internal pressure and limits reverse flow | Operates within the same general discharge system |
| Ingersoll Rand Oil Filter | Filters contaminants from circulating lubricant | Protects the oil circuit independently of the separator element |
| Ingersoll Rand Air Filter | Filters incoming air | Reduces particulate entry before compression |
| Aftercooler | Cools compressed air after separation | Receives the separated air downstream |
| Pressure Differential Indicator, where fitted | Indicates separator restriction | Supports condition monitoring and replacement decisions |
Recommended Related Models
| Model | Product Type | Relationship | Selection Consideration |
|---|---|---|---|
| Ingersoll Rand 23545841 | Air/Oil Separator Element | Main replacement reference | Verify compatibility with the installed compressor model |
| Ingersoll Rand 23487457 | Air Filter | Related compressor filtration component | Filters incoming air rather than separating oil from compressed air |
| Ingersoll Rand 23424922 | Coolant Filter | Related compressor maintenance component | Used in a separate fluid filtration circuit |
| Ingersoll Rand 23523772 | Filter Pad | Related pre-filtration component | Serves a different filtration stage and is not a separator substitute |
| Ingersoll Rand 99289894 | Minimum Pressure Check Valve Repair Kit | Related pressure-control service component | Confirm the valve configuration and required repair-kit reference |
| Ingersoll Rand 23521297 | Minimum Pressure Valve | Related compressor pressure-control component | Verify the specific compressor application before selection |
Key Advantages
- Separates entrained lubricant from compressed air through coalescing filtration.
- Helps limit oil carryover into downstream compressed-air equipment.
- Supports oil recovery and reuse within the compressor’s lubrication circuit.
- Helps maintain suitable separator pressure drop when correctly specified and maintained.
- Provides a defined replacement reference for maintenance of compatible Ingersoll Rand compressors.
Technical FAQs
What symptoms can indicate that the 23545841 air/oil separator needs attention?
Potential signs include increased separator differential pressure, excess oil in the discharge air, abnormal lubricant consumption or contamination downstream. These symptoms can have other causes, so inspect the separator together with its oil recovery path and associated seals.
Why is the oil recovery line important when replacing the separator element?
The separator element collects oil removed from the compressed-air stream, and the recovery line returns that oil to the compressor. A blocked or incorrectly connected recovery path can impair oil return even when a new separator element has been installed.
How can a restricted separator element affect compressor operation?
A loaded element can increase pressure drop across the separator, making the compressor work harder to deliver air. The actual effect depends on the degree of restriction and the compressor’s operating conditions, so differential-pressure readings should be assessed against the applicable service limits.
Is the 23545841 separator compatible with every Ingersoll Rand rotary screw compressor?
No. It is listed for selected compressor models, including certain RS90–RS160 configurations. Confirm the exact compressor model, serial number and parts reference before installation; a similar-looking separator element is not necessarily interchangeable.