Introduction
The Ingersoll Rand 47588564001 / 23708423 Air/Oil Separator Maintenance Kit combines a scheduled air-cooled preventive-maintenance reference with a dedicated separator-tank element.
47588564001 is documented as an 8,000-hour preventive maintenance kit for air-cooled compressors. It belongs to an Ingersoll Rand maintenance-parts family that also includes shorter preventive-maintenance intervals and separate water-cooled maintenance references.
The independently documented 23708423 is identified as “ELEMENT, SEPARATOR TANK.” An Ingersoll Rand R55/R75 parts manual places the element inside the separator tank assembly, confirming that it is a dedicated separator component rather than a general-purpose filter.
In an oil-injected rotary screw compressor, lubricant is introduced into the compression process to provide lubrication, cooling, and sealing. As a result, the compressed-air stream leaving the airend contains a quantity of entrained oil that must be removed before the air is delivered to the plant system.
The separator element performs this separation function. Fine oil droplets are captured by the coalescing media, allowing the separated lubricant to collect and return through the oil-recovery system while cleaner compressed air continues toward the discharge outlet.
Maintaining separator performance is important for controlling oil carryover. Excessive oil carryover can increase lubricant consumption and may introduce unwanted oil into downstream dryers, filters, receivers, pneumatic equipment, or production processes.
Available parts information associates 23708423 with R55I, R55N, R75I, and R75N compressors. For R55I and R75I machines, some documentation specifies an application limit up to serial number UCV1004333, demonstrating why serial-number verification is important when selecting a replacement separator.
The separator should not be confused with the compressor's oil filter. For example, R55/R75 consumables documentation identifies 23424922 as the replacement oil-filter element and 54672530 as the standard air-filter element, while 23708423 is separately identified as the separator element.
Available technical listings report approximately 240 mm outside diameter, 278 mm total height, and 297 mm maximum outside diameter for 23708423. Another supplier identifies the element at approximately 4.9 kg net weight.
These dimensional values are useful for technical identification, but the applicable compressor parts manual should remain the final reference because separator configurations can differ between compressor generations and serial-number ranges.
When replacing the separator, the technician should inspect the separator-vessel sealing interface and oil-return arrangement. A new separator cannot compensate for damaged sealing surfaces, restricted oil-return piping, incorrect assembly, or other system faults.
The separator differential pressure should also be considered during maintenance. Increasing restriction can affect compressor efficiency and operating conditions, while abnormal oil carryover may indicate separator deterioration or a separate problem elsewhere in the oil circuit.
The supplied pair is treated as one product listing as requested. Public records independently establish 47588564001 as the 8,000-hour air-cooled preventive-maintenance kit and 23708423 as the separator-tank element. The available documentation does not independently establish that 23708423 is the complete bill of materials contained in 47588564001.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Ingersoll Rand |
| Primary Part Number | 47588564001 |
| Associated Part Number | 23708423 |
| Product Type | 8,000-Hour Preventive Maintenance Kit / Separator Element |
| Maintenance Kit Type | 8,000-Hour Preventive Maintenance Kit, Air-Cooled |
| Component Description | Element, Separator Tank |
| Filter Type | Air/Oil Separator Element |
| Primary Function | Separation of Oil Aerosols from Compressed Air |
| Documented Applications | R55I, R55N, R75I, R75N and compatible configurations |
| Outside Diameter | Approx. 240 mm |
| Maximum Outside Diameter | Approx. 297 mm |
| Total Height | Approx. 278 mm |
| Reported Net Weight | Approx. 4.9 kg |
| Separator Media | Coalescing media; exact OEM construction not independently verified |
| Filtration Efficiency | Not reliably verified as an OEM specification |
| Recommended Service Interval | Configuration and operating-condition dependent |
| Complete Maintenance Kit Dimensions | Not reliably verified |
| Complete Maintenance Kit Weight | Not reliably verified |
| Maintenance Reference | 8,000 hours for 47588564001 |
| Compatibility | Model-, serial-number-, and separator-vessel dependent |
The dimensional and weight figures above are based on independent component specifications; they should be confirmed against the applicable Ingersoll Rand parts documentation before final procurement.
Recommended Companion Models
| Model | Product Name |
|---|---|
| 23424922 | Ingersoll Rand Replacement Oil Filter Element |
| 54672530 | Ingersoll Rand Standard Air Filter Element |
| 23561319 | Ingersoll Rand Pre-Filter Pad |
| 23592017 | Ingersoll Rand Panel Air Filter, High-Dust |
These components are documented within R55/R75 maintenance and consumables information and support different stages of compressor filtration. They are companion maintenance items rather than direct replacements for 23708423.
Frequently Selected Alternatives
| Model | Product Name |
|---|---|
| 23675010 | Ingersoll Rand Air/Oil Separator Element |
| 23545841 | Ingersoll Rand Air/Oil Separator Element |
| 23566938 | Ingersoll Rand Air/Oil Separator Element |
| 24121212 | Ingersoll Rand Air/Oil Separator Element |
