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- Ingersoll Rand
- 47667845001 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 47667845001 47638843001 Air Filter Safety Filter is a secondary air-filtration component used in compatible Ingersoll Rand compressor intake systems. It works behind the primary air filter to provide an additional barrier against airborne contamination entering the compressor.
In an industrial compressor room, the intake air can contain dust, fibers, dirt, and other suspended particles. The primary filter handles the main filtration load, while the safety filter provides additional protection for the compressor intake path, particularly during primary filter servicing or if the primary element becomes damaged.
The 47638843001 is normally installed inside the air filter housing as part of a multi-stage intake filtration arrangement. Its condition should be considered during routine compressor maintenance because contamination, damage, or incorrect installation can compromise the protection provided to the compression system.
This component is particularly relevant to oil-lubricated screw compressor packages where maintaining clean intake air helps protect the compression element and other internal components from airborne contamination.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Ingersoll Rand |
| Part Number | 47667845001 |
| Component Number | 47638843001 |
| Product Type | Air Filter Safety Filter |
| Primary Function | Secondary compressor intake-air filtration |
| System Role | Safety filtration component |
| Application | Industrial compressor systems |
| Installation | Compressor air filter housing |
| Dimensions | 330 × 120 × 120 mm |
| Weight | 1.2 kg |
Product Features
- Safety air filter for compatible Ingersoll Rand compressor systems
- Provides secondary filtration within the compressor intake assembly
- Adds protection against particulate contamination
- Works in conjunction with the primary air filter
- Suitable for industrial screw compressor applications
- Supports maintenance of a cleaner compressor intake path
- Useful during primary filter servicing and replacement
- Suitable for scheduled compressor filtration maintenance
Working Principle
The 47638843001 safety filter is positioned within the compressor air filter assembly downstream of the primary filtration stage. Ambient air first passes through the main air filter, while the safety element provides an additional filtration barrier before air reaches the compressor intake.
Under normal operating conditions, the primary air filter carries the principal filtration load. The safety filter acts as a secondary protective element, helping limit the passage of contaminants toward the compression element if contamination passes the primary stage or if the primary filter is disturbed during service.
A typical intake arrangement is:
Ambient Air → Main Air Filter → 47638843001 Safety Filter → Compressor Intake → Compression Element
The safety filter should remain correctly seated inside the filter housing so that incoming air is forced through the intended filtration path. Damaged sealing surfaces, incorrect installation, or a compromised filter element can allow unfiltered air to bypass the filtration media.
The safety filter should not be treated as a substitute for the primary air filter. Both elements serve different roles within the compressor intake protection system.
Role in Compressor Air Intake Architecture
The 47667845001 47638843001 Air Filter Safety Filter forms the secondary protection stage of the compressor intake system. Its location behind the main air filter gives the compression element an additional barrier against airborne contamination.
Ambient Air → Main Air Filter → Safety Filter → Compressor Intake → Compression Element
| System Element | Function |
|---|---|
| Ambient Air | Supplies air to the compressor intake |
| Main Air Filter | Performs primary removal of airborne contaminants |
| 47638843001 Safety Filter | Provides secondary intake-air filtration |
| Filter Housing | Holds and seals the filtration elements |
| Compressor Intake | Directs filtered air toward the compression element |
| Compression Element | Compresses the filtered incoming air |
| Air/Oil Separator | Separates oil from compressed air in applicable systems |
| Compressor Controller | Monitors and manages compressor operation |
The safety element becomes especially useful when the primary filter is removed during maintenance or when additional protection of the compressor intake is required by the equipment configuration.
Industrial Applications
| Application | Typical Use |
|---|---|
| Industrial Screw Compressors | Secondary intake-air protection |
| Manufacturing Plants | Additional filtration in dusty production areas |
| Process Air Systems | Protection of compressor intake components |
| Packaging Facilities | Secondary compressor intake filtration |
| Workshop Compressor Systems | Maintenance replacement of safety filter |
| Plant Utility Systems | Additional protection for compressed-air equipment |
| OEM Compressor Packages | Replacement safety filtration component |
| Compressor Service Operations | Preventive filtration maintenance |
Installation and Maintenance
- Confirm that the 47667845001 / 47638843001 safety filter is specified for the compressor model being serviced.
- Shut down and isolate the compressor according to the applicable maintenance procedure.
- Allow the intake system to reach a safe service condition before opening the filter housing.
- Clean the exterior of the filter housing before removing the existing filter element.
- Remove the safety filter carefully without allowing accumulated contamination to enter the compressor intake.
- Inspect the filter housing and sealing surfaces for dust, damage, or foreign material.
- Compare the replacement safety filter with the removed element before installation.
- Install the new safety filter in the correct position and ensure it is fully seated.
- Reinstall the primary air filter and housing components according to the applicable service procedure.
- Start the compressor under controlled conditions and check for abnormal intake noise or operating indications.
- If intake restriction or contamination remains, inspect the complete filter assembly and intake path rather than the safety filter alone.
- Record the safety-filter replacement as part of the compressor maintenance history and follow the applicable service schedule for future inspection.
Compatible System Components
| Component | Function |
|---|---|
| Main Air Filter | Performs primary compressor intake filtration |
| Air Filter Housing | Supports and seals the main and safety filter elements |
| Compressor Intake Duct | Transfers filtered air toward the compression element |
| Screw Compression Element | Compresses the incoming filtered air |
| Oil Filter | Filters contaminants from the compressor oil circuit |
| Air/Oil Separator | Separates oil from compressed air |
| Oil Cooler | Controls circulating compressor-oil temperature |
| Compressor Controller | Monitors and manages compressor operating conditions |
Recommended Related Models
| Model / Product Family | Product Type | Typical Application |
|---|---|---|
| Ingersoll Rand 47638843001 | Air Filter Safety Filter | Secondary intake-air filtration |
| Ingersoll Rand 47638842001 | Air Filter Main Core | Primary compressor intake filtration |
| Ingersoll Rand 476678 Series | Compressor Filter | Compressor filtration and maintenance |
| Ingersoll Rand Air Filters | Air Filter | Compressor intake filtration |
| Ingersoll Rand Oil Filters | Oil Filter | Compressor lubrication filtration |
| Ingersoll Rand Oil Separators | Oil Separator | Separation of oil from compressed air |
Key Advantages
- Adds a secondary filtration barrier to the compressor intake system
- Helps protect the compression element from airborne contamination
- Works together with the primary air filter
- Provides additional protection during primary filter servicing
- Suitable for industrial compressor environments with airborne particulate matter
- Supports the overall cleanliness of the compressor intake path
Technical FAQs
What is the purpose of the 47638843001 safety filter?
The safety filter provides a secondary filtration stage behind the primary air filter. Its purpose is to add protection against contaminants reaching the compressor intake and internal compression components.
Does the safety filter replace the main air filter?
No. The safety filter is an additional filtration element and does not replace the primary filter. The main filter performs the primary filtration duty, while the safety element provides additional protection.
When should the safety filter be inspected?
Inspection is normally performed during compressor air-filter servicing. The element should be checked for contamination, physical damage, incorrect seating, and deterioration of the associated sealing surfaces.
What could cause contamination to appear downstream of a new safety filter?
Possible causes include an incorrectly seated filter, damaged sealing surfaces, contamination inside the filter housing, a damaged primary filter, or an intake-path bypass. The complete filtration assembly should be inspected rather than assuming the new safety element is defective.