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- Ingersoll Rand
- 47661942001 47638843001
- Air Filter Safety Filter
- USA
- 330 × 120 × 120 mm
- 1.2 kg
- Xiamen, China
- New & In Stock
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Product Overview
The Ingersoll Rand 47661942001 / 47638843001 Air Filter Safety Filter is a secondary filtration component used in compatible Ingersoll Rand compressor air-intake systems. It works behind the main intake filter and adds another level of protection for the compressor when the primary filter is being serviced or when fine contamination needs to be kept away from the intake path.
In a typical compressor installation, ambient air first passes through the main air filter. The safety filter is positioned inside the filter assembly as an additional barrier. Its function becomes particularly useful when the main filter is removed during maintenance or when a damaged or improperly seated primary filter could otherwise allow contaminants toward the compressor.
For compressors operating in workshops, manufacturing plants, metalworking areas, and other environments where airborne dust is present, the safety filter forms part of the overall intake protection arrangement. It is not a substitute for the main filter; both elements should be maintained according to the applicable compressor service procedure.
The 47661942001 and 47638843001 part numbers should be checked against the compressor model and existing filter assembly before replacement. This is especially important during service work on older equipment where different filter configurations may be encountered.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Ingersoll Rand |
| Model / Part Number | 47661942001 / 47638843001 |
| Product Type | Air Filter Safety Filter |
| Application | Air Compressor |
| System Position | Compressor Air Intake |
| Primary Function | Secondary Intake Air Filtration |
| Dimensions | 330 × 120 × 120 mm |
| Weight | 1.2 kg |
Product Features
- Ingersoll Rand Air Filter Safety Filter
- Part numbers 47661942001 / 47638843001
- Used as a secondary filter in the compressor intake system
- Adds filtration protection behind the main intake filter
- Suitable for compatible Ingersoll Rand compressor systems
- Useful during main-filter service and replacement work
- Helps limit particulate entry into the compressor intake
- Suitable for industrial compressor maintenance
- Forms part of a multi-stage intake filtration arrangement
- Useful for replacement of a service-worn safety filter
Working Principle
The safety filter is installed downstream of the primary air filter within the compressor intake assembly.
Ambient Air → Main Air Filter → Safety Filter → Compressor Intake → Compression System
Under normal operation, the main filter handles the majority of incoming airborne contamination. The safety filter acts as a secondary barrier for material that passes beyond the primary filtration stage.
The safety element also has a practical maintenance function. If the main filter is removed for inspection or replacement, the safety filter helps protect the compressor intake from contamination that could otherwise enter the system during service.
The filter should remain correctly positioned inside its housing. A damaged seal, incorrectly installed element, or contaminated filter housing can affect the intended filtration path.
Role in an Ingersoll Rand Compressor System
The 47661942001 / 47638843001 safety filter belongs to the intake protection section of the compressor.
Ambient Air → Main Filter → Safety Filter → Compressor Airend → Compressed Air System
| System Element | Function |
|---|---|
| Main Air Filter | Removes the majority of airborne particulate contamination |
| Safety Filter | Provides secondary protection for the compressor intake |
| Air Filter Housing | Holds the filtration elements and controls the intake path |
| Compressor Intake Assembly | Directs filtered air toward the compressor |
| Compressor Airend | Compresses incoming air |
| Compressor Motor | Drives the compression element |
| Air/Oil Separator | Separates oil from compressed air in applicable oil-injected systems |
| Oil Filter | Filters compressor lubricant |
| Aftercooler | Reduces compressed-air temperature where applicable |
Industrial Applications
| Application | Typical Use |
|---|---|
| Manufacturing Plants | Secondary intake protection for industrial compressors |
| Machine Shops | Additional filtration where airborne workshop particles are present |
| Metalworking | Protecting compressor intake systems in dusty production environments |
| Automotive Production | Maintaining multi-stage compressor intake filtration |
| Process Plants | Replacement of safety filter elements during compressor service |
| Packaging Facilities | Supporting compressor intake protection |
| Utility Air Systems | Maintenance of industrial compressor filtration assemblies |
| Compressor Service Operations | Replacement of contaminated or worn safety filters |
Installation and Maintenance
- Verify the complete 47661942001 / 47638843001 part number before ordering.
- Confirm compatibility with the specific Ingersoll Rand compressor and filter assembly.
- Shut down the compressor according to the approved maintenance procedure.
- Isolate applicable electrical and compressed-air energy sources.
- Allow the equipment to reach a safe maintenance condition.
- Open the air filter housing according to the compressor service procedure.
- Remove the main filter carefully if access to the safety filter is required.
- Inspect the safety filter for contamination, damage, or deformation.
- Check the filter housing and sealing surfaces.
- Remove the existing safety filter without allowing accumulated contamination to enter the intake passage.
- Install the replacement filter in the correct position.
- Confirm that the filter is properly seated.
- Reinstall the main filter and close the housing correctly.
- Restart the compressor and check the intake system for abnormal conditions.
- Record the filter service in the compressor maintenance history.
The safety filter should not be cleaned or reused unless the applicable compressor maintenance instructions specifically permit that procedure. Filter condition, housing cleanliness, and sealing should be checked together during service.
Compatible System Components
| Component | Function |
|---|---|
| 47661942001 / 47638843001 Air Filter Safety Filter | Provides secondary intake filtration |
| Air Filter Main Core | Performs primary filtration of incoming air |
| Air Filter Housing | Contains and seals the filter elements |
| Air Intake Assembly | Directs filtered air into the compressor |
| Compressor Airend | Performs air compression |
| Compressor Motor | Drives the compressor airend |
| Air/Oil Separator | Separates oil from compressed air in applicable systems |
| Oil Filter | Filters compressor lubricant |
| Compressor Controller | Monitors and controls compressor operation |
| Aftercooler | Cools compressed air after compression where applicable |
Recommended Related Models
| Model / Product Family | Product Type | Typical Application |
|---|---|---|
| 47661942001 / 47638843001 | Air Filter Safety Filter | Secondary compressor intake filtration |
| 47661942001 / 47638842001 | Air Filter Main Core | Primary compressor intake filtration |
| Ingersoll Rand Air Filter Assemblies | Compressor Air Intake Assembly | Complete intake filtration arrangement |
| Ingersoll Rand Air Filter Elements | Replacement Filter Element | Compressor intake maintenance |
| Ingersoll Rand Oil Filters | Compressor Oil Filter | Lubrication-system maintenance |
| Ingersoll Rand Air/Oil Separators | Separator Element | Oil-injected compressor service |
Key Advantages
- Provides a secondary filtration barrier on the compressor intake side.
- Helps protect the intake path behind the main air filter.
- Suitable for compatible Ingersoll Rand compressor systems.
- Useful during main-filter maintenance.
- Supports multi-stage compressor intake filtration.
- Suitable for replacement and preventive maintenance work.
- Available under the 47661942001 / 47638843001 part-number identification.
Technical FAQs
What is the purpose of a safety filter in an air compressor?
The safety filter acts as a secondary filtration barrier behind the main intake filter. It helps prevent particulate contamination from reaching the compressor intake if material passes through or around the primary filtration stage.
Can the 47638843001 replace the main air filter?
The 47638843001 is identified for this product as an Air Filter Safety Filter, so it should not automatically be treated as the main filter element. The main filter and safety filter perform different positions within the intake assembly.
When should the safety filter be inspected?
The safety filter should be inspected whenever the intake filter assembly is serviced, particularly when the main filter has been heavily contaminated or damaged. The surrounding housing and sealing surfaces should also be checked at the same time.
Why does the safety filter matter during compressor maintenance?
When the primary filter is removed during service, the safety filter remains as an additional barrier between the open filter housing and the compressor intake. Keeping this element in good condition reduces the chance of contamination entering the intake system during normal operation and maintenance.