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- Ingersoll Rand
- 47588444001 24900342
- Air Oil Separator
- USA
- 302 × 45 × 136 mm
- 0.91 kg
- Xiamen, China
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Product Overview
The Ingersoll Rand 47588444001 24900342 Air Oil Separator is a replacement separator element used in compatible oil-injected rotary screw air compressors. Its purpose is to separate lubricating oil from compressed air before the air leaves the compressor, allowing recovered oil to return to the lubrication circuit while reducing oil carryover into downstream equipment.
During compression, the air and oil mixture passes through the compressor’s separation system. Although the bulk of the oil is removed during the initial separation stage, fine oil droplets remain suspended in the compressed air. The separator element captures these droplets and coalesces them into larger droplets that can drain back into the oil circuit.
Part number 24900342 is associated with Ingersoll Rand RS30 and RS37 compressor configurations, including specified RS30i, RS30n, RS37i, and RS37n models. It is used in the separator arrangement of compatible machines and is distinct from the air filter and oil filter installed elsewhere in the compressor.
Separator condition directly affects compressed-air quality and the pressure drop across the separation stage. As the filter medium ages or becomes contaminated, its resistance to airflow may increase. Deteriorated separation performance can also allow more oil to pass into the discharge stream, increasing oil consumption and contaminating downstream air-treatment equipment.
The 24900342 element is available in spin-on separator configurations. Its sealing interface and mounting arrangement must match the applicable assembly. The part number is associated with more than one separator design in some replacement-parts listings, so the physical construction of the installed element is relevant when identifying the correct version.
For maintenance planning, the separator should be assessed alongside the oil filter, compressor lubricant, and oil-return circuit. Replacing the element at the prescribed service interval helps maintain the intended separation performance and reduces the risk of excessive oil carryover or rising differential pressure.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Ingersoll Rand |
| Model Reference | 47588444001 |
| Part Number | 24900342 |
| Product Name | Air Oil Separator |
| Product Type | Spin-On Air/Oil Separator Element |
| Product Category | Rotary Screw Air Compressor Spare Part |
| Primary Function | Separates entrained oil from compressed air |
| Separation Method | Coalescing filtration |
| Installation Location | Compressor oil separation system |
| Filter Configuration | Spin-on cartridge |
| Compatible Equipment | Selected Ingersoll Rand RS30 and RS37 compressor configurations |
| Associated Models | RS30i, RS30n, RS37i, RS37n |
| Dimensions | 302 × 45 × 136 mm |
| Weight | 0.91 kg |
Product Features
- Air/oil separation: Captures fine oil droplets carried in compressed air.
- Coalescing filtration: Combines smaller oil droplets into larger droplets that can drain back into the oil circuit.
- Spin-on configuration: Supports replacement through the designated separator mounting interface.
- Dedicated part reference: Uses 24900342 for service documentation and spare-parts inventory.
- RS30 and RS37 applications: Associated with compatible Ingersoll Rand compressor configurations.
- Oil carryover control: Helps limit the amount of lubricant leaving the compressor with the discharged air.
- Differential pressure management: Supports normal airflow through the separation stage when the element remains within its service limits.
- Downstream equipment protection: Helps reduce oil contamination reaching air dryers, filters, pneumatic tools, and production equipment.
- Oil recovery support: Allows separated oil to return through the designated recovery path.
- Scheduled maintenance integration: Can be included in planned separator and oil-filter replacement procedures.
Working Principle
The 24900342 Air Oil Separator uses coalescing filtration to remove fine oil droplets from the compressed air produced by an oil-injected rotary screw compressor.
Rotary Screw Air End → Oil and Air Mixture → Separator Element → Compressed Air Outlet
During compression, lubricant is introduced into the air end to provide sealing, lubrication, and heat transfer. The resulting air-oil mixture enters the separation system, where bulk oil is removed before the remaining compressed air passes through the separator element.
Inside the element, fine oil droplets contact the filtration medium and combine into larger droplets. These droplets collect and drain toward the designated oil recovery passage, while the separated air continues toward the compressor discharge and downstream treatment equipment.
The separator must balance effective oil removal with acceptable airflow resistance. As contaminants accumulate or the element deteriorates, the pressure drop across the separator can increase. A damaged element or a problem with its sealing arrangement may also permit excessive oil carryover.
The oil-return path is an important part of this process. Even when the separator medium is functioning correctly, a restricted or malfunctioning oil-return arrangement can interfere with oil recovery and contribute to abnormal oil consumption.
Replacing the element alone may not resolve every separation problem. If excessive oil appears downstream of a new separator, the investigation should include the oil-return circuit, lubricant level, operating conditions, and the separator’s mounting and sealing interfaces.
Role in an Ingersoll Rand Compressor System
The 24900342 Air Oil Separator sits within the compressor’s oil separation stage, downstream of the air end and upstream of the compressed-air outlet. It removes residual oil droplets from the air stream while allowing recovered lubricant to return to the oil circuit.
Air Intake → Compressor Air End → Initial Oil Separation → 24900342 Separator → Aftercooler → Downstream Air System
| System Component | Function |
|---|---|
| Ingersoll Rand 24900342 Air Oil Separator | Removes fine oil droplets from compressed air |
| Rotary Screw Air End | Compresses incoming air and produces an air-oil mixture |
| Oil Separator Vessel | Houses the separation arrangement and supports internal pressure |
| Oil Return Circuit | Returns recovered oil to the compressor lubrication system |
| Ingersoll Rand 24900433 Oil Filter | Removes particulate contaminants from circulating lubricant |
| Ingersoll Rand 48958201 Air Filter | Filters incoming air before compression |
| Ingersoll Rand 49007941 Pre-Filter Pad | Provides preliminary filtration in compatible intake assemblies |
| Aftercooler | Reduces compressed-air temperature after the compression stage |
| Air Dryer | Removes moisture from compressed air where fitted |
| Differential Pressure Monitoring | Helps identify increased resistance across the separator where monitored |
Industrial Applications
| Application | Typical Use |
|---|---|
| Industrial Manufacturing | Reducing oil carryover from compressors supplying production machinery |
| Automotive Production | Supporting compressed-air quality in pneumatic production systems |
| Metalworking Facilities | Maintaining oil separation in compressors supplying machine tools |
| Packaging Lines | Limiting lubricant contamination in compressed air used by automated equipment |
| Process Manufacturing | Maintaining separator performance in industrial utility systems |
| Central Compressor Rooms | Servicing oil separation components in shared compressed-air installations |
| Continuous-Operation Facilities | Including separator replacement in scheduled compressor maintenance |
| Industrial Air Treatment Systems | Reducing oil loading on downstream filters and dryers |
| RS30 Compressor Installations | Maintaining oil separation in compatible 30 kW compressor configurations |
| RS37 Compressor Installations | Maintaining oil separation in compatible 37 kW compressor configurations |
Installation and Maintenance
- Verify the part reference: Identify the required separator as Ingersoll Rand 24900342 and establish the correct mounting configuration.
- Isolate the compressor: Stop the machine, disconnect the electrical supply, and follow the site’s lockout and tagout procedure.
- Depressurize the system: Allow the compressor and separator vessel to reach the safe pressure condition specified in the service procedure before opening the system.
- Allow components to cool: Avoid servicing the separator while the lubricant or surrounding components remain at unsafe temperatures.
- Access the separator assembly: Open the appropriate service enclosure and locate the installed element.
- Remove the used element: Use the appropriate removal method and collect any released lubricant.
- Inspect the mounting interface: Check the sealing surface and threaded connection for contamination, damage, or remnants of the old seal.
- Prepare the replacement element: Confirm that the mounting arrangement and sealing interface match the installed assembly.
- Install the separator: Fit the replacement element according to the applicable service instructions.
- Inspect the oil-return arrangement: Check accessible oil-return passages and associated connections for contamination or obstruction.
- Check operation after restart: Observe available pressure indications and inspect the separator connection for leakage or abnormal operating behavior.
- Record the maintenance: Document the replacement part number, operating hours, separator condition, and any oil carryover or pressure-drop observations.
Related Components
| Component | Function |
|---|---|
| Ingersoll Rand 24900342 Air Oil Separator | Separates residual oil from compressed air |
| Ingersoll Rand 24900433 Oil Filter | Filters circulating compressor lubricant |
| Ingersoll Rand 48958201 Air Filter | Removes airborne particles from intake air |
| Ingersoll Rand 49007941 Pre-Filter Pad | Provides preliminary intake filtration in compatible assemblies |
| Oil Separator Vessel | Houses the separator and supports pressure separation |
| Oil Return Line | Returns recovered lubricant to the compressor oil circuit |
| Compressor Lubricant | Provides lubrication, sealing, and heat transfer |
| Aftercooler | Reduces compressed-air temperature |
| Air Dryer | Removes moisture from compressed air where installed |
| Differential Pressure Monitoring Device | Indicates separator restriction where fitted |
Recommended Related Models
| Model / Product Family | Product Type | Typical Application |
|---|---|---|
| Ingersoll Rand 24900342 | Air Oil Separator Element | Oil separation in compatible RS30 and RS37 compressors |
| Ingersoll Rand RS30i | Rotary Screw Air Compressor | Industrial compressed-air generation |
| Ingersoll Rand RS30n | Rotary Screw Air Compressor | Industrial compressed-air generation |
| Ingersoll Rand RS37i | Rotary Screw Air Compressor | Industrial compressed-air generation |
| Ingersoll Rand RS37n | Rotary Screw Air Compressor | Industrial compressed-air generation |
| Ingersoll Rand 24900433 | Oil Filter Element | Filtration of circulating compressor lubricant |
| Ingersoll Rand 48958193 | Air Filter Element | Intake filtration in specified RS30 and RS37 configurations |
| Ingersoll Rand 38459582 | Compressor Coolant | Lubrication and heat transfer in compatible compressor systems |
Key Advantages
- Removes residual oil droplets from compressed air through coalescing filtration.
- Helps limit oil carryover into downstream air-treatment equipment.
- Supports oil recovery within compatible compressor separation systems.
- Provides a dedicated replacement reference for scheduled maintenance.
- Helps maintain separator performance when installed and serviced correctly.
Technical FAQs
What is the difference between the 24900342 separator and the 24900433 oil filter?
The 24900342 separator removes oil droplets from compressed air, while the 24900433 oil filter removes particulate contaminants from the circulating lubricant. They operate in different parts of the compressor system and are not interchangeable.
Which Ingersoll Rand compressors use the 24900342 separator?
The part is associated with selected RS30i, RS30n, RS37i, and RS37n compressor configurations. These models use the separator in their oil separation system, subject to the specific installed assembly.
How can a restricted separator affect compressor operation?
A loaded separator can increase pressure drop across the separation stage, potentially increasing the energy required to deliver compressed air. Deteriorated separation performance can also contribute to higher oil carryover.
Why is the oil-return circuit checked when replacing the separator?
The oil-return circuit carries recovered lubricant back to the compressor’s oil system. A restriction or malfunction can interfere with oil recovery and contribute to abnormal oil consumption, even when the separator element itself is new.