Product Overview

The Ingersoll Rand 47642703001 39911631 Oil Filter is a filtration component used in the oil circulation system of oil-injected screw compressors. It removes contaminants from circulating compressor oil before the oil returns to critical components such as the compression element.

Compressor oil performs several functions at the same time, including lubrication, cooling, sealing, and removal of heat from the compression process. Keeping the circulating oil clean helps protect internal surfaces and maintain the intended condition of the oil circuit.

The 47642703001 oil filter is suited to compressor maintenance and replacement work. It can be used during scheduled service or when oil contamination, increased differential pressure, or other filter-related operating conditions indicate that replacement is required.

Technical Specifications

Product Features

• Compressor Oil Filtration: Removes particulate contamination from circulating compressor oil.
• Oil Circuit Protection: Helps limit contaminants reaching the compression and lubrication system.
• Lubrication Support: Maintains cleaner oil for compressor lubrication and sealing functions.
• Cooling Circuit Support: Clean circulating oil can continue to transfer heat away from the compression process.
• Screw Compressor Application: Intended for oil-injected screw compressor maintenance.
• Scheduled Replacement: Suitable for routine oil-filter service based on operating hours and maintenance requirements.
• Contamination Control: Helps prevent accumulated particles from circulating through the oil system.
• Service Replacement Component: Suitable for corrective maintenance when filter restriction or contamination becomes excessive.

Working Principle

Compressor oil circulates through the lubrication and cooling circuit after being collected from the compressor system. Before returning to critical components, the oil passes through the 47642703001 39911631 Oil Filter.

The filter media retains suspended particles and other contaminants while allowing the filtered oil to continue through the oil circuit. This reduces the amount of contamination reaching components exposed to continuous oil circulation.

As contaminants accumulate in the filter media, pressure differential across the filter can increase. Monitoring oil pressure, differential pressure where available, oil condition, and compressor operating behavior helps determine when filter service is required.

Oil Circuit → 39911631 Oil Filter → Filtered Oil → Oil Cooler / Lubrication Circuit → Compression Element

Role in an Oil-Injected Screw Compressor Control Architecture

Industrial Applications

Installation and Maintenance

1. Verify the Part Number: Confirm 47642703001 and 39911631 against the applicable compressor documentation before installation.
2. Shut Down the Compressor: Stop the compressor and isolate it from the compressed-air system before beginning oil-filter service.
3. Depressurize the System: Ensure the compressor oil circuit and associated pressure-containing sections are at a safe service condition.
4. Allow the Oil to Cool: Wait until compressor oil and surrounding components have reached a safe maintenance temperature.
5. Inspect the Existing Filter: Check for contamination, leakage, deformation, or signs of excessive pressure differential.
6. Prepare the Filter Housing: Clean the mounting area and prevent dirt from entering the oil circuit.
7. Inspect Sealing Surfaces: Check the filter mounting interface and applicable sealing components for damage.
8. Install the Replacement Filter: Fit the replacement filter correctly according to the compressor service procedure.
9. Check Oil Connections: Confirm that oil lines, fittings, and related components are properly secured.
10. Verify Oil Level: Check the compressor oil level and replenish oil if required by the maintenance procedure.
11. Monitor Oil Pressure and Temperature: Observe oil-system parameters during startup and normal operation after replacement.
12. Record Maintenance: Document the filter replacement, oil condition, and operating observations for future service planning.

Related Components

Recommended Related Models

Key Advantages

• Helps remove contaminants from circulating compressor oil.
• Supports cleaner oil delivery to critical compressor components.
• Helps maintain lubrication and cooling functions.
• Supports protection of the oil-injected compression system.
• Suitable for scheduled compressor oil-filter replacement.
• Helps maintain the condition of the compressor oil circulation circuit.

Technical FAQs

What is the function of the 39911631 oil filter?

It filters contaminants from circulating compressor oil before the oil returns to critical components in the oil-injected screw compressor system.

How can a restricted oil filter affect compressor operation?

A heavily loaded filter can increase pressure differential in the oil circuit and may affect oil flow. Monitoring oil pressure and differential pressure, where available, can help identify excessive filter restriction.

Should the compressor oil be changed when replacing the oil filter?

Not necessarily. Filter replacement and oil replacement are separate maintenance operations, but the oil condition should be inspected at the same service interval and replaced when required by the applicable maintenance schedule.

What should be inspected during 39911631 oil filter replacement?

The filter mounting area, sealing surfaces, oil lines, oil level, oil condition, and related pressure and temperature indications should be checked to ensure that the oil circuit is operating correctly after service.