Product
Ingersoll Rand 47722477001 Air Filter Element | MSG TURBO-AIR Centac OEM Part
Ingersoll Rand 47722477001 intake air filter element for MSG TURBO-AIR and MSG Centac centrifugal compressors. 5–10 μm filtration, ≥98% efficiency, cellulose media, −10 to +80 °C. OEM/ODM supply with export packing.
- Export packaging & documentation support
- OEM / ODM customization available
- Sample and bulk order workflow
Product Overview
47722477001 is the intake air filter element for Ingersoll Rand centrifugal air compressors. It is installed inside the intake filter assembly, upstream of the centrifugal impeller inlet. During operation, ambient air is drawn in and dust, grit and fibers are captured by the filter media before reaching the impeller and intercooler.
This part belongs to the Ingersoll Rand centrifugal product line (CC), with piece-level model code P675 and unit group designation C675. Centrifugal units are designed as 100% oil-free (ISO 8573-1 Class 0); the compression chamber has no lubricating oil to carry away contaminants, so particles deposit on the impeller and cooler surfaces. Intake filtration requirements are therefore higher than for oil-flooded screw compressors.
Core Specifications
| Item | Value |
|---|---|
| Part Number | 47722477001 |
| Name | Air Filter Element |
| Brand | Ingersoll Rand |
| Application | Ingersoll Rand centrifugal compressors (MSG TURBO-AIR / MSG Centac series) and packaged systems |
| Piece-Level Model Code | P675 |
| Unit Group Designation | C675 |
| Product Line | Centrifugal (CC) |
| Filtration Rating | 5–10 μm |
| Filtration Efficiency | ≥98% (for particles ≥5 μm) |
| Recommended Replacement | 2000 hours or 3 months |
Technical Parameters
1. Filtration Performance
| Parameter | Value / Note |
|---|---|
| Filtration Rating | 5–10 μm |
| Filtration Efficiency | ≥98% (for particles ≥5 μm) |
| Filter Class | Characterized per ISO 5011 by efficiency, resistance and dust holding capacity; HVAC classifications (G4/F7 etc.) do not apply |
| Dust Holding Capacity | — |
2. Flow and Pressure Drop
| Parameter | Value / Note |
|---|---|
| Rated Air Flow | Must exceed unit rated intake volume; select based on discharge volume corrected for intake temperature and altitude |
| Initial Pressure Drop | Approx. 0.3–0.5 kPa (clean element) |
| Operating Differential Range | Rises with dust loading; typical operating range approx. 0.5–1.5 kPa |
| Alarm / Final Resistance | Typical replacement threshold approx. 1.5–2.5 kPa; for centrifugal units the intake depression gauge reading is the final criterion |
| Pressure Drop vs. Energy | Each 1 kPa increase in intake resistance raises compression ratio by approx. 1%, increasing unit energy consumption by approx. 1.0% |
Pressure drop / energy relationship (theoretical, at 0.85 MPa discharge gauge pressure)
| Intake Resistance | Compression Ratio | Energy Increase |
|---|---|---|
| 0 kPa (new element) | 9.39 | Baseline |
| 0.5 kPa | 9.44 | +0.5% |
| 1.0 kPa | 9.49 | +1.0% |
| 1.5 kPa | 9.53 | +1.5% |
| 2.0 kPa | 9.58 | +2.0% |
| 2.5 kPa | 9.63 | +2.5% |
From installation to replacement threshold, intake resistance rises by more than 2 kPa, increasing unit energy consumption by approx. 2%. Centrifugal units are high-power and often run continuously, so this energy difference typically exceeds the filter price. Operating by resistance rather than calendar is more economical.
3. Construction and Installation
| Parameter | Value / Note |
|---|---|
| Dimensions | — (verify by measuring the old element) |
| Effective Filter Area | — (verify by measuring the old element) |
| Pleat Count / Pitch | — (verify by measuring the old element) |
| Mounting Interface | Matches intake filter assembly; compare with old element |
| Seal Type | Face seal or radial seal; compare with old element |
Recommended measurements before ordering a replacement:
| Measurement | Note |
|---|---|
| Outer Diameter | Outer edge of filter media |
| Inner Diameter | Center passage diameter |
| Overall Height | Including end caps |
| Seal Position and Type | Face / radial, and seal cross-section shape |
| Mounting Interface | Clamp, bolt hole or quick-fit configuration and dimensions |
Length, diameter and seal type directly affect fit and bypass risk. Measuring the old element is recommended over relying on unit model alone.
4. Materials
| Parameter | Value / Note |
|---|---|
| Filter Media | Cellulose fiber paper, pleated construction |
| Media Weight | Approx. 130 g/m² |
| Inner/Outer Support | Galvanized steel perforated cage, dual-sided support |
| End Caps | Metal or polyurethane, bonded to media |
| Seal | Polyurethane or nitrile rubber, integral or separate from end cap |
| Adhesive | Polyurethane, for media-to-cap and cage bonding |
5. Operating Conditions
| Parameter | Value / Note |
|---|---|
| Operating Temperature | −10 °C to +80 °C |
| Relative Humidity | ≤90% RH (non-condensing) |
| Burst / Collapse Pressure | Designed to withstand ≥5 kPa differential pressure without deformation |
| Special Function | Intake-stage filtration for oil-free centrifugal units, working with downstream clean filtration to maintain air quality |
6. Service Life and Maintenance
| Parameter | Value / Note |
|---|---|
| Service Life | 2000 hours or 3 months, whichever comes first |
| High-Dust Environment | Reduce hours accordingly (e.g. approx. 1500 hours) and bring the time limit forward |
| Shelf Life | Use within 24 months; store in a dry, ventilated, dark place, avoid moisture and compression deformation |
| Replacement Criteria | Intake depression gauge reading exceeds limit, or media damage, debonding, or seal face compression |
7. Standards
| Standard | Note |
|---|---|
| ISO 5011 | Intake filter efficiency and dust holding capacity test method; basis for performance characterization of this air filter type |
| ISO 8573-1 | Compressed air quality classes; this unit type is Class 0 (100% oil-free) |
| Note | ISO 2941 / 2942 / 2943 / 3723 / 3724 series are hydraulic filter standards for pressure, burst and filtration characteristics; they do not apply to air filters and should not be used as performance basis for air filters |
Installation and Maintenance Steps
Step 1: Confirm unit status and spare part
Check unit nameplate model and group designation; confirm the new filter matches the old part number. Prepare the new element, clean cloth and necessary tools.
Step 2: Shut down, depressurize, lock out
Follow shutdown procedure and wait for complete depressurization (centrifugal units have rotational inertia; wait for zero-speed confirmation). Disconnect main power and apply lockout/tagout. This step is mandatory.
Step 3: Verify old element before removal
Before opening the intake filter assembly, read the stamped part number on the old element end cap and note its installation position. Confirm it matches the new part. Intake-stage and clean-stage elements have different part numbers; this step is critical for error prevention.
Step 4: Remove and inspect old element
Lift out the old element vertically and observe dust distribution and media condition. Criteria: replace immediately if media is damaged, perforated, end cap debonded or seal face compressed, even if service interval has not been reached. Black oily sludge on the surface indicates abnormal oil mist in intake air; investigate upstream conditions (especially important for oil-free units).
Step 5: Clean assembly interior
Wipe the inner walls and bottom with a lint-free cloth. Do not blow compressed air directly into the assembly (it will drive dust into the intake duct). Criteria: no loose dust on inner walls, seal face flat and free of debris.
Step 6: Install new element
Install in the same orientation and position as the old element, observing seal face direction and compression method. Criteria: element seated without movement, seal face evenly compressed around circumference.
Step 7: Reassemble and confirm seal
Replace cover or clamp and tighten evenly per unit requirements. Check that the intake depression gauge impulse line is clear; a blocked line gives a false clean reading and is a common source of misjudgment.
Step 8: Reset, test run, record
Reset maintenance timer, start unit at no load, observe intake depression gauge reading and operating sound. Criteria: gauge stable within unit limits, no abnormal whistling (often indicates seal bypass). Record unit running hours at replacement as the starting point for the next interval.
FAQ
Q1: Which units use 47722477001?
It is used on Ingersoll Rand centrifugal air compressors (MSG TURBO-AIR and MSG Centac series and packaged systems; piece-level model code P675, unit group designation C675). Centrifugal units are 100% oil-free. For a specific unit, always verify against the unit nameplate and old part number.
Q2: Can it be used on an oil-flooded screw compressor?
Not recommended. This element belongs to the centrifugal product line; dimensions and interface are designed for centrifugal intake assemblies. Oil-flooded screw compressors use a different part number system, and cross-use cannot guarantee sealing or filtration performance.
Q3: What is the replacement interval?
Standard interval is 2000 hours or 3 months, whichever comes first. In high-dust environments (cement, quarry, mining, metalworking), reduce hours to approx. 1500. Final criterion is the intake depression gauge reading; replace when it exceeds the limit regardless of running hours.
Q4: Why do centrifugal compressors require higher intake filtration than screw compressors?
Centrifugal units are oil-free; there is no lubricating oil in the compression chamber to carry away contaminants, so particles deposit on the high-speed impeller and intercooler surfaces. Impeller fouling causes dynamic imbalance and requires shutdown for rotor correction. Screw compressors have an oil film that can partially carry away contaminants, giving more tolerance for intake filtration.
Q5: Why are dimensions not listed?
Centrifugal units are supplied as packaged projects; intake assemblies vary in size across groups and package scopes within the same series. Listing a single dimension would be misleading. We recommend measuring the old element's outer diameter, inner diameter, overall height and seal type, or providing photos of the old element and unit nameplate. We can cross-reference by part number before confirming.
Q6: What are the consequences of increased intake resistance?
First, energy consumption rises: each 1 kPa increase in intake resistance raises compression ratio by approx. 1% and unit energy consumption by approx. 1%. Second, intake volume drops, reducing discharge volume. Continuing to use beyond the replacement threshold saves less on the filter than the extra electricity cost.
Q7: Can alternative parts be used?
Yes, but verify three items: filtration rating, end cap seal type, and dimensions. If an alternative does not match the original seal configuration, bypass occurs. For oil-free centrifugal units, bypass means particles enter the impeller directly, a higher risk than for oil-flooded units. When purchasing alternatives, provide photos of the old element and this part number.
Q8: What if abnormal whistling occurs after installation?
Whistling usually indicates seal bypass: element not fully seated, seal face deformed, or seal missing. Stop the unit immediately and check: element seating, seal face compression or inversion. Also check whether the intake depression gauge impulse line is blocked to avoid misjudgment.
Q9: What are the storage requirements for spare parts?
Store in a dry, ventilated, dark place; avoid moisture, rain and heavy compression. Moisture reduces media strength; compression deformation damages seal fit. Use within 24 months.
Q10: Which other filters in the same series are easily confused?
In the Ingersoll Rand centrifugal product line, the same unit often has both intake-stage and downstream clean-stage filter elements with different part numbers and installation positions. Before ordering, confirm whether it is intake stage or clean stage; the two differ in filtration rating, material and seal type.
Compatible Models
This part is suitable for Ingersoll Rand centrifugal air compressors as follows:
| Item | Content |
|---|---|
| Unit Type | Centrifugal air compressor |
| Product Line | Ingersoll Rand centrifugal product line (CC) |
| Series | MSG TURBO-AIR / MSG Centac |
| Piece-Level Model Code | P675 |
| Unit Group Designation | C675 |
| Air Quality Class | 100% oil-free, ISO 8573-1 Class 0 |
| Typical Applications | Continuous, clean, oil-free air supply (food & beverage, pharmaceutical, electronics, textile, pneumatic conveying, etc.) |
Representative model range for the centrifugal series (family-level reference; individual fit must be verified by serial number):
| Series | Representative Models |
|---|---|
| MSG TURBO-AIR | TA / NX series packaged units |
| MSG Centac Standard Pressure | C series (C400, C700, C800, C1000, C3000, etc.) |
| MSG Centac High Pressure | C750, C1050, 2CII, 3C, 4C and other high-pressure units |
| Packaged Systems | Refrigerated dryers, filters, air receivers and other downstream equipment for the above units |
Why verify by part number rather than unit model
Centrifugal units are supplied as packaged projects: the same unit may have different intake assembly configurations, downstream scope and interface dimensions across projects. The same unit also has intake-stage and downstream clean-stage elements with different part numbers. Therefore, selection should be based first on the old element part number, second on the unit nameplate, and third on installation position.
Three-step verification
- Read the stamped part number on the old element end cap or cage and compare with the ordered part number;
- Read the unit nameplate model and group designation and compare with the unit parts manual;
- Confirm the old element installation position (intake stage / clean stage); the two are not interchangeable.
If verification is still uncertain, provide photos of the unit nameplate, the old element (including stamped part number) and installation position description. We will cross-reference by part number before confirming.
Cross-series note: Centrifugal unit filter elements and oil-flooded screw compressor filter elements belong to different part number systems and cannot be cross-applied. Screw compressor air filters are designed for external intake assemblies; direct substitution will cause seal failure.
Related Components
In the Ingersoll Rand centrifugal product line intake and air circuit, components maintained on the same cycle or in the same stage include:
| Component | Part Number | Function | Inspection Points |
|---|---|---|---|
| Sterile Filter Element | 47722478001 | Downstream sterile-grade filtration, further removes microorganisms and particles from compressed air for higher cleanliness requirements | Different filtration stage from intake element; part numbers not interchangeable; confirm installation position when replacing |
| Air Filter Assembly (Housing) | — | Housing assembly that holds and secures the intake element | Check clamps, seal faces and outlet end for deformation or corrosion |
| Intake Depression Gauge / Differential Gauge | — | Displays intake resistance; final criterion for replacement interval | Regularly check impulse line for blockage; blockage gives false clean readings |
| Seals | — | Prevent bypass between element and assembly | Inspect together with element; replace if compressed, hardened or missing |
| Unit Lubricating Oil and Oil Filter | — | For gearbox and bearing lubrication system (not compression chamber oil) | Replace per unit parts manual intervals; inspect together with intake element |
Recommended replacement pairing: Inspect intake element, downstream clean element and seals together, but decide replacement individually based on their respective criteria. Intake and downstream clean elements have different replacement intervals (downstream is typically judged by cleanliness requirements rather than dust loading) and need not be replaced together.
For specific part numbers: Items marked "—" should be confirmed against the unit-specific parts manual. Centrifugal units are packaged by project; part numbers listed in the manual correspond to the serial number of the applied unit and should not be cross-applied between projects.