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The Ingersoll Rand 47629376001 49101645 Air Filter is a replacement air intake filter element for compatible Ingersoll Rand rotary screw compressors. Part number 49101645 is associated with the RS30ie and RS37ie compressor models, where the filter helps prevent airborne dust and solid contaminants from entering the compressor’s internal air path.
During compressor operation, ambient air is drawn through the intake system before reaching the airend. Dust and other abrasive particles carried by the incoming air can damage internal surfaces, contaminate the lubrication system, and contribute to premature wear. The air filter captures these contaminants before they enter the compression process, helping preserve the condition of the rotors and other internal components.
The 49101645 is a replaceable filter element rather than a complete intake housing assembly. Its filtration performance depends on the filter media, sealing interface, and correct fit within the designated housing. A properly seated element prevents unfiltered air from bypassing the media and entering the compressor.
Filter condition also affects operating efficiency. As dust accumulates, airflow resistance can increase, potentially contributing to reduced intake performance and higher energy consumption. Routine inspection and timely replacement help maintain the intended airflow through the compressor.
For maintenance teams, the key selection requirement is to match the complete part number to the installed compressor configuration. Similar-looking filter elements may have different media arrangements or sealing interfaces, making visual comparison alone insufficient for replacement selection.
| Parameter | Specification |
|---|---|
| Manufacturer | Ingersoll Rand |
| Model / Part Number | 47629376001 / 49101645 |
| Product Type | Air Filter |
| Component Category | Air Intake Filter Element |
| Compatible Compressor Models | RS30ie, RS37ie |
| Filtration Method | Mechanical particle filtration |
| Primary Function | Removes airborne dust and solid contaminants from incoming air |
| Installation Type | Replaceable filter element |
| Application | Compatible Ingersoll Rand rotary screw compressors |
| Dimensions | 396.9 × 187.5 × 104.65 mm |
| Weight | 0.4 kg |
The 49101645 air filter operates through mechanical filtration. Ambient air passes through the filter media, which captures airborne particles while allowing air to continue toward the compressor inlet.
The basic airflow path is:
Ambient Air → 49101645 Air Filter → Inlet System → Compressor Airend
As air passes through the media, dust and other solid contaminants are retained within the filter structure. The cleaned air then travels through the intake system to the airend, where the compression process begins.
The effectiveness of the filtration stage depends on the condition of the media and the integrity of the seal between the element and its housing. If the media becomes damaged or the element is incorrectly seated, contaminants may bypass the intended filtration path. This is particularly undesirable in rotary screw compressors because abrasive particles can contribute to wear on closely fitted internal surfaces.
As the filter accumulates dust, the resistance to airflow may rise. The resulting pressure drop depends on the amount and type of contamination, the condition of the media, and the compressor’s airflow demand. Inspection and replacement should therefore take account of operating hours, site conditions, and any installed intake restriction indicator.
The air filter does not remove every type of contaminant from compressed air. It primarily protects the intake and compression system against airborne particles. Oil aerosols, liquid water, and other downstream air-quality concerns require the appropriate separation, filtration, or drying equipment.
The 49101645 filter forms the initial filtration stage before air enters the compressor’s compression mechanism. It works with the intake housing and downstream inlet components to keep airborne contamination from reaching sensitive internal surfaces.
Ambient Air → Air Filter Element → Intake Passage → Inlet Valve → Compressor Airend
| System Component | Function |
|---|---|
| 49101645 Air Filter | Captures airborne particles from incoming air |
| Air Filter Housing | Holds the filter element in the intended position |
| Intake Seal | Limits unfiltered air bypass around the element |
| Intake Passage | Directs filtered air toward the compressor inlet |
| Inlet Valve | Controls airflow into the compression system |
| Compressor Airend | Compresses incoming air |
| Intake Restriction Indicator, Where Fitted | Indicates increasing resistance in the intake path |
| Compressor Controller | Monitors supported operating conditions and alarms |
| Application | Typical Use |
|---|---|
| Ingersoll Rand RS30ie Compressors | Replacing the intake filter during scheduled maintenance |
| Ingersoll Rand RS37ie Compressors | Maintaining the intake filtration stage |
| Industrial Rotary Screw Compressors | Reducing airborne particle entry into the airend |
| Manufacturing Facilities | Protecting compressor intake systems in production environments |
| Automotive Plants | Supporting compressed-air equipment used in manufacturing operations |
| Metalworking Workshops | Limiting dust entry into compressor intake passages |
| Packaging Facilities | Maintaining intake filtration for production air systems |
| Central Compressor Rooms | Supporting routine filtration maintenance across industrial installations |
| Preventive Maintenance Programs | Scheduling inspection and replacement according to operating conditions |
| Compressor Overhauls | Renewing the intake filter while servicing associated components |
| Component | Function |
|---|---|
| Compatible Ingersoll Rand Compressor | Provides the installation for the specified air filter |
| Air Filter Housing | Supports and retains the replaceable element |
| Intake Seal | Prevents unfiltered air from bypassing the filter |
| Intake Passage | Carries filtered air toward the inlet valve |
| Inlet Valve | Regulates air admission into the compressor |
| Intake Restriction Indicator | Indicates filter restriction where fitted |
| Compressor Controller | Displays supported operating conditions and maintenance alarms |
| Oil Separator Element | Separates oil from compressed air in the downstream system |
| Compressor Lubricant | Supports lubrication and cooling in compatible oil-injected designs |
| Model / Part Number | Product Type | Main Application |
|---|---|---|
| Ingersoll Rand 49101645 | Air Filter Element | Replacement intake filter for compatible RS-series compressors |
| Ingersoll Rand 47708886001 | Air Filter Housing Assembly | Associated intake housing for specified RM30–45ie configurations |
| Ingersoll Rand 47765362001 | Oil Separator Element | Oil separation in compatible RM30–45ie compressor systems |
| Ingersoll Rand 47760278001 | Inlet Valve | Controls air admission in the associated compressor platform |
| Ingersoll Rand 35300615 | Vacuum Indicator | Indicates intake restriction where fitted |
| Ingersoll Rand 38459582 | Ultra Coolant | Compressor lubricant for specified compatible equipment |
The 49101645 filter element is associated with Ingersoll Rand RS30ie and RS37ie compressors. Compatibility should be established from the installed equipment’s parts identification, particularly when dealing with related RS or RM model designations.
The intake air filter removes airborne particles before air enters the compressor airend. An oil separator performs a different function downstream by separating oil from compressed air in an oil-injected compressor. The two components are not interchangeable.
Inspect the intake passage, housing, sealing interface, and any restriction indicator for blockage, damage, or incorrect assembly. Also check whether the operating environment is causing unusually rapid contamination. A new filter cannot correct an obstruction elsewhere in the intake system.
Replacement is the preferred approach when the element is loaded, damaged, or reaches its specified service limit. Cleaning methods that are unsuitable for the media can damage the filter or compromise its sealing performance. Follow the maintenance instructions applicable to the installed compressor.