Ingersoll Rand 47704439001 / 23708423 Air/Oil Separator Element

Where It Excels in Industrial Use

• Compressed-Air Oil Separation: The 23708423 is an air/oil separator element designed to separate entrained lubricant from compressed air before the air reaches the downstream cooling and distribution system.
• R45–R75 Compressor Platforms: The part is associated with compatible Ingersoll Rand R45, R55, and R75 compressor configurations, including selected high-dust versions and R55N applications.
• Oil Carryover Control: Effective separation helps return separated lubricant to the compressor sump while reducing oil carryover into the compressed-air stream.
• Heavy-Duty Compressor Service: Its large-format separator construction is suited to industrial rotary screw compressor systems where maintaining stable separation performance is essential for reliable operation.

Key Strengths at a Glance

• High-Efficiency Coalescing Separation: Fine coalescing media separates oil mist from compressed air and supports cleaner discharge air.
• Large Separator Format: The element has an approximately 240 mm outer diameter, 297 mm maximum diameter, and 278 mm overall height according to available product specifications.
• Lubricant Recovery: Proper separator operation allows separated oil to return to the compressor lubrication circuit instead of being carried downstream.
• Industrial OEM Replacement: The 23708423 is listed as an Ingersoll Rand air/oil separator element for compatible rotary screw compressor systems. 

Technical FAQs

1. What is the primary function of Ingersoll Rand 47704439001 / 23708423?

The 23708423 is an air/oil separator element that removes entrained oil mist from compressed air. Separated lubricant is returned to the compressor system while cleaner compressed air continues downstream.

2. Which compressor models are associated with 23708423?

Available application information associates the element with selected Ingersoll Rand R45, R55, and R75 configurations, including R55N and certain high-dust versions. Exact fitment should be confirmed using the compressor serial number and parts documentation.

3. How does an air/oil separator work in an oil-flooded screw compressor?

The separator uses coalescing media to capture fine oil droplets carried with the compressed-air stream. The droplets combine into larger quantities of oil that can drain back toward the separator sump.

4. Why is oil carryover an important maintenance concern?

Excessive oil carryover can increase lubricant consumption and introduce oil contamination into downstream air-treatment equipment and the plant compressed-air network.

5. What can happen when the separator becomes restricted?

As the separator loads or deteriorates, pressure differential across the element can increase. Excessive restriction may affect compressor efficiency and operating conditions, making separator condition an important part of routine maintenance.

6. What symptoms can indicate a deteriorating air/oil separator?

Potential signs include increased oil carryover, abnormal separator pressure differential, higher lubricant consumption, or changes in compressor operating behavior. These symptoms can also have other causes, so the complete lubrication and separation system should be inspected.

7. Is 23708423 an oil filter?

No. The 23708423 is an air/oil separator element installed in the separator tank. It should not be confused with the separate compressor oil filter, which filters lubricant circulating through the lubrication system.

8. What are the approximate dimensions of 23708423?

Available specifications give an outer diameter of approximately 240 mm, a maximum diameter of approximately 297 mm, and an overall height of approximately 278 mm.

9. What is the approximate weight of the separator?

A current product listing gives a net weight of approximately 4.9 kg. Packaging and aftermarket equivalent weights can differ, so the physical product should be checked when shipping weight is critical.

10. What should be verified before ordering 47704439001 / 23708423?

Verify the compressor model, serial number, separator-tank configuration, existing separator part number, dimensions, and applicable maintenance documentation. This is particularly important because R-series compressors can use different separator configurations.