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The Ingersoll Rand 47667844001 47638843001 Air Filter Safety Filter is a secondary filtration component used in compatible Ingersoll Rand compressor intake systems. It works behind the primary air filter to provide an additional barrier against dust and particulate contamination entering the compressor.
In a typical compressor air intake arrangement, the main filter handles the incoming ambient air while the safety filter remains inside the filter housing as a secondary protective element. This arrangement is particularly useful during primary filter servicing because it helps limit contamination from reaching the compressor intake.
The safety filter is relevant to industrial compressor installations operating in environments where airborne dust, dirt, or other particulate matter may be present. Maintaining the secondary filter helps preserve the cleanliness of the intake path and supports protection of downstream compressor components.
When replacing the safety filter, the compressor model and existing filter assembly should be checked against the 47667844001 and 47638843001 identifiers. Proper seating of the filter inside the housing is also important to maintain the intended filtration path.
| Parameter | Specification |
|---|---|
| Model | 47667844001 |
| Part Number | 47638843001 |
| Product Family | Ingersoll Rand |
| Product Type | Air Filter Safety Filter |
| Primary Function | Secondary intake air filtration |
| System Role | Compressor intake protection component |
| Typical Application | Industrial air compressors |
| Filtration Application | Secondary protection against airborne particulate contamination |
| Dimensions | 330 × 120 × 120 mm |
| Weight | 1.2 kg |
Ambient air first enters the compressor intake filter housing and passes through the primary filtration stage. The 47638843001 Safety Filter acts as a secondary barrier, capturing residual particulate matter that may pass through or around the primary filtration stage.
The filtered air then continues toward the compressor intake. By adding a second filtration stage, the safety filter helps reduce the risk of contaminants entering the compressor when the primary filter is being serviced or when fine particulate matter remains in the intake air.
Ambient Air → Main Air Filter → Safety Filter → Compressor Intake → Compressor Air End
The safety filter should remain correctly installed inside the filter housing. Damage, incorrect seating, or contamination around the sealing area can compromise the intended filtration path.
The safety filter is a mechanical component rather than an electronic control device, but its condition contributes to the overall operating condition of the compressor intake system.
Ambient Air → Main Filter → Safety Filter → Compressor → Air/Oil Separation → Compressed Air System
| System Element | Function |
|---|---|
| Ambient Air | Source of compressor intake air |
| Main Air Filter | Primary removal of airborne contaminants |
| Safety Filter | Secondary filtration and intake protection |
| Compressor Intake | Receives filtered air |
| Compressor Air End | Compresses the incoming air |
| Compressor Controller | Monitors and manages compressor operation |
| Compressed Air System | Receives the compressed-air output |
| Application | Typical Use |
|---|---|
| Industrial Air Compressors | Secondary intake air filtration |
| Manufacturing Plants | Protection of compressor intake systems |
| Process Industries | Additional particulate protection |
| Factory Utilities | Compressor intake protection |
| Pneumatic Production Systems | Maintaining cleaner compressor intake air |
| Machinery Workshops | Compressor filtration maintenance |
| Continuous-Duty Compressors | Secondary intake protection |
| Dusty Industrial Environments | Additional barrier against airborne contaminants |
| Component | Function |
|---|---|
| Main Air Filter | Primary intake air filtration |
| Air Filter Housing | Holds the main and safety filtration elements |
| Compressor Intake System | Directs filtered air to the compressor |
| Intake Valve | Controls or regulates compressor air intake where applicable |
| Compressor Air End | Compresses the filtered intake air |
| Air/Oil Separator | Separates oil from compressed air where applicable |
| Compressor Controller | Monitors compressor operating conditions |
| Intake Ducting | Connects the air source to the compressor intake |
| Differential Pressure Monitoring | Indicates increasing intake restriction where provided |
| Model / Product Family | Product Type | Typical Application |
|---|---|---|
| 47667844001 | Air Filter Safety Filter | Secondary compressor intake filtration |
| 47638843001 | Air Filter Safety Filter | Replacement safety filtration element |
| 47667844001 47638842001 | Air Filter Main Core | Primary compressor intake filtration |
| Ingersoll Rand Air Filter Components | Compressor Filters | Intake air filtration |
| Ingersoll Rand Compressor Intake Filters | Air Filters | Compressor protection |
| Ingersoll Rand Compressor Service Parts | Replacement Components | Compressor maintenance |
| Ingersoll Rand Intake System Components | Compressor Components | Compressor air intake |
| Ingersoll Rand Compressor Maintenance Parts | Service Components | Routine compressor maintenance |
The main air filter serves as the primary filtration stage, while the safety filter provides an additional barrier inside the intake filter assembly. The safety filter helps protect the compressor from residual contamination and provides additional protection during primary filter servicing.
Not necessarily. Replacement intervals depend on the compressor maintenance requirements and the condition of the safety filter. During main filter service, the safety filter should be inspected for contamination, damage, and proper seating.
Incorrect installation can affect the intended airflow and filtration path. Poor seating or sealing may also allow contaminated air to bypass the filter, reducing the protection available to the compressor intake.
Dust and debris accumulated inside the housing can enter the compressor intake during maintenance. Cleaning and inspecting the housing before installing the replacement filter helps prevent secondary contamination and ensures that the filtration elements are correctly seated.