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- Ingersoll Rand
- 47588444001 49007941
- Pre-Filter Pad
- USA
- 350 × 20 × 250 mm
- 0.25 kg
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Product Overview
The Ingersoll Rand 47588444001 49007941 Pre-Filter Pad is an intake filtration component used in compatible Ingersoll Rand rotary screw air compressors. Installed ahead of the main air filter in the compressor’s intake arrangement, it captures a portion of the airborne dust and larger particles before they reach the primary filtration element.
In industrial environments, compressor intake air can contain dust, fibers, and other suspended particles generated by manufacturing processes. These contaminants accumulate on filtration media as the compressor draws in air during operation. A pre-filter pad provides an additional filtration stage, reducing the particulate load reaching the main filter and helping maintain the condition of the intake system.
Part number 49007941 is associated with Ingersoll Rand RS30 and RS37 compressor configurations, including RS30i, RS30n, RS37i, and RS37n models. It is also used in compatible Total Air System configurations with integrated air treatment equipment. The pad is identified as a separate component of the intake assembly rather than a replacement for the main air filter.
The pre-filter works alongside the primary air filter, which performs the subsequent filtration stage before air enters the compressor. By capturing a portion of the incoming contamination, the pad can help reduce the rate at which the main filter becomes loaded. Its effectiveness depends on the surrounding air quality, the condition of the pad, and the airflow path through the intake enclosure.
During maintenance, the pad should be inspected for accumulated dust, damage, and deterioration. A heavily contaminated or damaged pad may restrict airflow or allow particles to reach the main filter more readily. Maintaining this preliminary filtration stage helps support the compressor’s intake air management and routine filter service program.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Ingersoll Rand |
| Model Reference | 47588444001 |
| Part Number | 49007941 |
| Product Name | Pre-Filter Pad |
| Product Type | Compressor Intake Pre-Filter |
| Product Category | Rotary Screw Air Compressor Spare Part |
| Filter Configuration | Panel Pad |
| Primary Function | Captures airborne particles before the main air filter |
| Installation Location | Compressor intake enclosure |
| Filtration Stage | Preliminary intake filtration |
| Compatible Compressor Models | RS30i, RS30n, RS37i, RS37n |
| Additional Applications | Compatible Total Air System configurations |
| Dimensions | 350 × 20 × 250 mm |
| Weight | 0.25 kg |
Product Features
- Preliminary intake filtration: Captures a portion of airborne particles before they reach the primary air filter.
- Panel-pad configuration: Fits the designated pre-filter position within compatible compressor intake assemblies.
- Dedicated part identification: Uses part number 49007941 for maintenance planning and spare-parts inventory.
- Main-filter support: Helps reduce the particulate load reaching the primary intake filter.
- RS30 and RS37 compatibility: Associated with specified Ingersoll Rand RS-Series compressor configurations.
- Total Air System applications: Used in compatible installations with integrated air treatment equipment.
- Intake contamination control: Helps limit the accumulation of airborne debris within the compressor’s intake system.
- Maintenance accessibility: Allows the pre-filter to be inspected and replaced as a separate service component.
- Airflow management: Supports the intended intake path when the pad is clean and correctly installed.
- Preventive maintenance integration: Can be included in scheduled inspection of the compressor’s complete filtration arrangement.
Working Principle
The 49007941 Pre-Filter Pad provides an initial barrier against airborne contamination. As ambient air enters the compressor enclosure, the pad captures a portion of the particles carried by the incoming airflow before the air reaches the main filter element.
Ambient Air → 49007941 Pre-Filter Pad → Main Air Filter → Intake Valve → Compressor Air End
During operation, the compressor draws air through the intake enclosure. The pre-filter intercepts part of the dust and larger airborne debris, while the primary air filter provides the next stage of filtration. This arrangement distributes the filtration load across separate components rather than relying exclusively on the main element.
As particles accumulate on the pad, its resistance to airflow may increase. A heavily loaded pad can reduce the amount of air passing through the intake system and may affect the operating conditions of the compressor. The rate of contamination depends on the installation environment and the amount of airborne particulate matter.
The pre-filter does not replace the main air filter. Fine particles that pass through the preliminary stage must still be captured by the primary element. Both components need to remain correctly positioned so that incoming air follows the intended filtration path instead of bypassing the filter media.
When the pad is replaced, the surrounding intake enclosure should also be checked for loose debris and damage. Correct positioning and a clear airflow path help preserve the function of the two-stage intake filtration arrangement.
Role in an Ingersoll Rand Compressor System
The 49007941 Pre-Filter Pad occupies the preliminary filtration position in compatible Ingersoll Rand compressor intake assemblies. It reduces the amount of airborne contamination reaching the primary filter, while the main filter provides the subsequent filtration stage.
Intake Enclosure → Pre-Filter Pad → Main Air Filter → Intake Valve → Rotary Screw Air End
| System Component | Function |
|---|---|
| Ingersoll Rand 49007941 Pre-Filter Pad | Captures a portion of airborne particles before primary filtration |
| Ingersoll Rand 48958201 Air Filter | Provides the main intake air filtration stage in compatible installations |
| Intake Enclosure | Directs incoming air through the filtration arrangement |
| Intake Grille | Allows air to enter while supporting the enclosure structure |
| Intake Valve | Controls air admission into the compressor |
| Rotary Screw Air End | Compresses the incoming air |
| Ingersoll Rand 24900433 Oil Filter | Removes particulate contaminants from circulating compressor lubricant |
| Ingersoll Rand 24900342 Air Oil Separator | Separates entrained oil from compressed air in compatible configurations |
| Aftercooler | Reduces compressed-air temperature after compression |
| Compressor Maintenance Schedule | Defines inspection and replacement tasks for filtration components |
Industrial Applications
| Application | Typical Use |
|---|---|
| Industrial Manufacturing | Providing preliminary intake filtration for compressors supplying production equipment |
| Automotive Production | Reducing dust entry into compressor intake systems |
| Metalworking Facilities | Capturing airborne workshop particles before they reach the main air filter |
| Packaging Plants | Reducing the intake contamination load in environments with airborne fibers and dust |
| Process Manufacturing | Supporting intake filtration in industrial compressed-air installations |
| Central Compressor Rooms | Maintaining preliminary filtration on compressors supplying plant-wide air networks |
| Continuous-Operation Facilities | Including pre-filter inspection in scheduled compressor maintenance |
| Industrial Utility Rooms | Servicing compatible RS-Series compressor intake assemblies |
| Total Air System Installations | Providing preliminary filtration in compatible compressors with integrated air treatment |
| RS30 and RS37 Compressor Installations | Maintaining the intake filtration arrangement on compatible compressor models |
Installation and Maintenance
- Verify the part number: Identify the required pre-filter pad as Ingersoll Rand 49007941 for the installed compressor configuration.
- Isolate the compressor: Stop the machine, disconnect the electrical supply, and follow the site’s lockout and tagout procedure.
- Access the intake enclosure: Open the designated intake panel according to the compressor maintenance procedure.
- Inspect the existing pad: Check for heavy dust accumulation, tears, deformation, or deterioration of the filter material.
- Remove the used pad: Handle the component carefully to avoid releasing accumulated debris into the clean side of the intake assembly.
- Clean the surrounding area: Remove loose dust from the enclosure without pushing contamination into the main air filter or intake passage.
- Inspect the mounting arrangement: Check the panel support, retaining features, and seating surfaces for damage or obstruction.
- Install the replacement pad: Position the 49007941 element in the designated preliminary filtration location.
- Check the main air filter: Inspect the primary filter for loading or damage, since the pre-filter and main filter operate as successive stages.
- Reassemble the enclosure: Confirm that the pad remains correctly positioned and that the access panel closes securely.
- Check operation after restart: Observe available intake restriction indications and investigate abnormal airflow behavior.
- Record the maintenance: Document the replacement part number, operating hours, pad condition, and any unusual contamination found.
Related Components
| Component | Function |
|---|---|
| Ingersoll Rand 49007941 Pre-Filter Pad | Captures airborne particles ahead of the primary intake filter |
| Ingersoll Rand 48958201 Air Filter | Filters incoming air before compression in compatible installations |
| Intake Enclosure | Directs ambient air through the filtration stages |
| Intake Grille | Provides the air entry opening for the compressor enclosure |
| Intake Valve Assembly | Regulates airflow into the compressor air end |
| Ingersoll Rand 24900433 Oil Filter | Filters circulating compressor lubricant |
| Ingersoll Rand 24900342 Air Oil Separator | Removes oil droplets from compressed air in compatible systems |
| Compressor Air End | Compresses incoming air |
| Aftercooler | Reduces the temperature of compressed air |
| Filter Maintenance Schedule | Establishes inspection and replacement requirements |
Recommended Related Models
| Model / Product Family | Product Type | Typical Application |
|---|---|---|
| Ingersoll Rand 49007941 | Pre-Filter Pad | Preliminary intake filtration in compatible RS-Series compressors |
| Ingersoll Rand 48958201 | Air Filter Element | Primary intake filtration in compatible RS30 and RS37 configurations |
| 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 24900342 | Air Oil Separator | Oil separation in compatible compressor configurations |
Key Advantages
- Captures a portion of airborne contamination before it reaches the main air filter.
- Helps reduce the particulate loading on the primary intake filter.
- Supports preliminary filtration in compatible RS30 and RS37 compressor installations.
- Provides a separately serviceable component within the intake enclosure.
- Helps maintain the intended intake airflow when clean and correctly installed.
Technical FAQs
What is the difference between the 49007941 Pre-Filter Pad and the 48958201 Air Filter?
The 49007941 pad provides preliminary intake filtration, while the 48958201 element performs the main air filtration stage in compatible configurations. The two components serve different positions in the intake system and are not interchangeable.
Which Ingersoll Rand compressors use the 49007941 Pre-Filter Pad?
The part is associated with RS30i, RS30n, RS37i, and RS37n compressors, including compatible Total Air System versions. It is used in the designated intake arrangement for these configurations.
How does a loaded pre-filter affect the compressor?
Accumulated dust can increase resistance to incoming airflow. If the pad becomes excessively loaded, the intake system may experience greater restriction, so the pad and primary air filter should be assessed together during maintenance.
Why should the intake enclosure be cleaned when replacing the pad?
Loose dust left in the enclosure can enter the main filter area during reassembly or subsequent operation. Cleaning the surrounding area helps prevent accumulated debris from undermining the filtration stages.