Product
Ingersoll Rand 47722477001 Air Filter Element | Centac MSG TURBO-AIR
Replacement air filter element for Ingersoll Rand centrifugal compressors (MSG TURBO-AIR / MSG Centac series), part number 47722477001, piece-level model code P675 (group C675). 5–10 μm filtration, ≥98% efficiency, cellulose pleated media, −10 to +80 °C. Supports part-number verification before purchase.
- 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 compressor 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 element is the first barrier in the air path of a centrifugal compressor. The downstream impeller is a high-speed rotating component, and dust accumulation can shift its dynamic balance, so intake filtration condition directly affects rotor stability and maintenance cost.
This part number belongs to the Ingersoll Rand centrifugal product line (line code CC), with piece-level model code P675 and group identifier C675. Centrifugal machines are designed as 100% oil-free (ISO 8573-1 Class 0); there is no lubricating oil in the compression chamber 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 |
| Product line | Centrifugal (CC) |
| Filtration rating | 5–10 μm |
| Filtration efficiency | ≥98% (for particles ≥5 μm) |
| Recommended replacement interval | 2,000 hours or 3 months |
Basic Parameters
| Parameter | Details |
|---|---|
| Part number | 47722477001 |
| Brand | Ingersoll Rand |
| Product name | Air Filter Element |
| Category | Intake filtration (air filter) |
| Product line | Centrifugal (CC) |
| Application | Ingersoll Rand centrifugal compressors (MSG TURBO-AIR / MSG Centac series) |
| Installation position | Inside the intake filter assembly, upstream of the centrifugal impeller inlet |
| Air quality class | 100% oil-free, ISO 8573-1 Class 0 |
| Replacement interval | 2,000 hours or 3 months |
Fitment verification
Centrifugal machines typically use two filter stages on the same unit: intake filtration and downstream clean filtration, with different part numbers. Before ordering, verify: (1) the part number stamped on the old element end cap or frame matches the ordered number; (2) the model and group identifier on the machine nameplate; (3) the installation position of the old element (intake stage or clean stage). Ordering by machine model alone often results in the wrong part, especially for centrifugal units.
Technical Specifications
1. Filtration Performance (Core Indicators)
| Parameter | Value / Notes |
|---|---|
| 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 classification systems (G4/F7 etc.) do not apply |
| Dust holding capacity | — |
2. Flow and Resistance Parameters
| Parameter | Value / Notes |
|---|---|
| Rated air flow | Must exceed the machine's rated intake flow; select by matching machine discharge volume with corrections for intake temperature and altitude |
| Initial pressure drop | Approx. 0.3–0.5 kPa for a clean new element |
| Operating differential pressure range | Rises gradually 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 machines the intake depression gauge reading is the final criterion |
| Pressure drop vs. energy | Each 1 kPa increase in intake resistance raises the compression ratio by approx. 1%, increasing machine energy consumption by approx. 1.0% |
Pressure drop vs. energy consumption (theoretical calculation based on compression ratio, 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 the replacement threshold, intake resistance rises by more than 2 kPa, with machine energy consumption increasing by roughly 2%. Centrifugal machines are high-power and often run continuously, so this energy cost typically exceeds the price of the element itself. Operating by resistance rather than by calendar is therefore not economical.
3. Dimensions and Installation Parameters
| Parameter | Value / Notes |
|---|---|
| Overall dimensions | — (confirm by measuring the old part) |
| Effective filtration area | — (confirm by measuring the old part) |
| Pleat count / pitch | — (confirm by measuring the old part) |
| Mounting interface | Matches the intake filter assembly interface; compare with the old part |
| Sealing type | Face seal or radial seal; compare with the old part |
Measurement checklist (recommended before ordering a replacement part, to verify supply)
| Measurement | Notes |
|---|---|
| Outer diameter | Outer edge diameter of the filter media |
| Inner diameter | Center passage diameter |
| Overall height | Total height including end caps |
| Seal face position and type | Face / radial, and the cross-section shape of the seal |
| Mounting interface | Type and dimensions of clamp, bolt holes or quick-fit structure |
Length, diameter and sealing type directly affect whether the element fits and whether bypass occurs. Replacing measurement with machine model is not recommended.
4. Material Construction
| Parameter | Value / Notes |
|---|---|
| Filter media | Cellulose fiber filter paper, pleated structure |
| Media weight | Approx. 130 g/m² |
| Inner / outer support | Galvanized steel perforated support on both sides of the media |
| End caps | Metal or polyurethane end caps, bonded to the media |
| Seals | Polyurethane or NBR seal body, integral with or separate from the end caps |
| Bonding layer | Polyurethane adhesive for fixing and edge-sealing the media to end caps and support |
5. Operating Condition Tolerance
| Parameter | Value / Notes |
|---|---|
| Operating temperature | −10 °C to +80 °C |
| Relative humidity | ≤90% RH (non-condensing) |
| Burst / collapse resistance | Standard design withstands a differential pressure across the media of at least 5 kPa without deformation |
| Special function | Intake-stage filtration for oil-free centrifugal machines, working with the downstream clean filter element to maintain air quality |
6. Service Life and Maintenance Parameters
| Parameter | Value / Notes |
|---|---|
| Service life | 2,000 hours or 3 months, whichever comes first |
| High-dust environment | Reduce hours accordingly (e.g. approx. 1,500 hours), and bring the time limit forward |
| Storage shelf life | Use within 24 months recommended; store in a dry, ventilated, dark place, protected from moisture and crushing |
| Replacement criteria | Intake depression gauge reading exceeds limit, or media shows damage, debonding, or a compressed seal face |
7. Applicable Standards
| Standard | Notes |
|---|---|
| ISO 5011 | Test method for intake filter efficiency and dust holding capacity — the performance basis for this type of air filter element |
| ISO 8573-1 | Compressed air quality classes; this machine type is Class 0 (100% oil-free) |
| Note | The ISO 2941 / 2942 / 2943 / 3723 / 3724 series commonly cited in replacement-part literature are hydraulic filter standards for pressure, burst and filtration characteristics. They do not apply to air filter elements and should not be used as performance evidence for air filters. |
Standard Maintenance and Installation Steps
Step 1: Confirm machine status and spare parts
Check the machine nameplate model and group identifier, and confirm the ordered element matches the old part number. Have the new element, clean cloths and necessary tools ready.
Step 2: Shut down, depressurize, disconnect power
Follow the shutdown procedure and wait for full depressurization (centrifugal machines have rotational inertia; wait for the controller to confirm zero speed). Switch off the main power and apply lockout/tagout. This is mandatory and must not be skipped.
Step 3: Verify the old part before starting work
Before opening the intake filter assembly, read the part number stamped on the old element end cap and note its installation position, confirming it matches the ordered part. Intake-stage and clean-stage elements on centrifugal machines have different part numbers; this step is the key error-prevention check.
Step 4: Remove the old element and assess it
Remove the old element vertically and observe dust distribution and media condition. Criteria: if the media is damaged, punctured, debonded from the end cap, or the seal face is compressed, replace immediately even if the interval has not been reached. If the outer surface carries black oily sludge, intake oil mist is abnormal and the upstream environment should be investigated (this is a priority check on oil-free machines).
Step 5: Clean the assembly interior
Wipe the inner walls and bottom of the assembly with a lint-free cloth. Do not blow compressed air forcefully into the assembly interior (this drives dust into the intake path). Criteria: no loose dust on inner walls, seal face flat and free of debris.
Step 6: Install the new element
Install the new element in the same orientation and position as the old one, noting seal face direction and clamping method. Criteria: no movement after seating, seal face evenly compressed around the circumference.
Step 7: Reassemble and confirm sealing
Refit the cover or clamp and tighten evenly as specified. Check that the intake depression gauge impulse line is clear — a blocked impulse line gives a false "clean" reading and is a common source of misjudgment.
Step 8: Reset, test run, record
Reset the maintenance timer, start the machine at no load, and observe the intake depression gauge reading and operating sound. Criteria: gauge stable within the machine's allowable range, no abnormal whistling (whistling often indicates seal bypass). Record the machine running hours at this replacement as the starting point for the next interval.
Frequently Asked Questions
Q1: Which machines use 47722477001?
It is used on Ingersoll Rand centrifugal air compressors — MSG TURBO-AIR and MSG Centac series and their packaged systems (piece-level model code P675, group identifier C675). Centrifugal machines are 100% oil-free by design. For a specific machine, confirm against the nameplate and the old part number.
Q2: Can it be used on an oil-flooded screw compressor?
Not recommended. This element belongs to the centrifugal product line, and its dimensions and interface are designed for centrifugal machine intake assemblies. Oil-flooded screw compressors use a different part number system; mixing them cannot ensure sealing or filtration performance.
Q3: What is the replacement interval?
The standard interval is 2,000 hours or 3 months, whichever comes first. In high-dust environments (cement, quarrying, mining, metalworking), reduce hours to approximately 1,500. The final criterion is the machine's intake depression gauge reading — replace when the reading exceeds the limit, regardless of running hours.
Q4: Why are intake filtration requirements higher for centrifugal machines than screw machines?
Centrifugal machines are oil-free by design; 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 dust accumulation shifts dynamic balance and requires shutdown and rotor correction. Screw machines have an oil film that can carry away some contaminants, giving greater tolerance in intake filtration.
Q5: Why are dimensions not listed?
Centrifugal machines are supplied as project-specific packages. Intake assembly dimensions differ between groups and package scopes within the same series, so listing a single dimension would be misleading. We recommend measuring the old part's outer diameter, inner diameter, overall height and sealing type, or providing photos of the old part and the machine nameplate so we can cross-check by part number.
Q6: What are the consequences of increased intake resistance?
First, energy consumption rises: each 1 kPa increase in intake resistance raises the compression ratio by about 1% and machine energy consumption by about 1%. Second, intake volume drops, reducing machine discharge. Continuing to use an element past the replacement threshold saves less than the additional electricity cost.
Q7: Can alternative parts be used?
Yes, but three items must be verified: filtration rating, end cap sealing type, and dimensions. If an alternative's sealing type does not match the original structure, bypass occurs — for oil-free centrifugal machines, bypass means particles enter the impeller directly, a higher risk than on oil-flooded machines. When sourcing alternatives, provide photos of the old part and this part number.
Q8: What should be done if abnormal whistling occurs after installation?
Whistling usually indicates seal bypass — the element is not fully seated, the seal face is deformed, or the seal is missing. Stop the machine immediately and recheck: whether the element is seated, and whether the seal face is compressed or turned. 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, protected from moisture, rain and heavy loads. Moisture reduces media strength, and compression deformation damages the seal fit. Use within 24 months recommended.
Q10: Which other filters in the same series are easily confused?
In the Ingersoll Rand centrifugal product line, the same machine often has both an intake-stage filter and a downstream clean-stage filter, with different part numbers and installation positions. Before ordering, confirm whether the part is intake-stage or clean-stage — the filtration rating, materials and sealing type differ between the two.
Compatible Machine Models
This part applies to Ingersoll Rand centrifugal air compressors, as follows:
| Item | Details |
|---|---|
| Machine type | Centrifugal air compressor |
| Product line | Ingersoll Rand centrifugal product line (CC) |
| Series | MSG TURBO-AIR / MSG Centac |
| Piece-level model code | P675 |
| Group identifier | C675 |
| Air quality class | 100% oil-free, ISO 8573-1 Class 0 |
| Typical applications | Continuous, clean, oil-free air supply (food and beverage, pharmaceutical, electronics, textile, pneumatic conveying, etc.) |
Representative model range of the centrifugal series (family-level reference; individual fitment 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 part-number verification is required instead of selecting by machine model
Centrifugal machines are supplied as project-specific packages: the intake assembly configuration, downstream scope and interface dimensions can differ between projects for the same machine. The same machine also has two filter stages — intake and downstream clean filtration — with different part numbers. Selection should therefore be based first on the part number on the old element itself, second on the machine nameplate, and third on the installation position.
Three-step verification method
- Read the part number stamped on the old element end cap or frame and compare it with the ordered number;
- Read the model and group identifier on the machine nameplate and compare with the machine parts manual;
- Confirm the old element's installation position (intake stage / clean stage); the two stages are not interchangeable.
If these three steps do not confirm fitment, provide a photo of the machine nameplate, a photo of the old element (including the stamped part number) and a description of the installation position; we will cross-check by part number before confirming.
Cross-series note: filter elements for centrifugal machines and oil-flooded screw machines belong to different part number systems and are not interchangeable. Screw compressor air filters are dimensioned and interfaced for external intake assemblies; direct substitution will cause seal failure.
Related Components
In the intake and air path system of the Ingersoll Rand centrifugal product line, components maintained on the same cycle or in the same stage as this part include:
| Component | Part number | Function | Inspection points |
|---|---|---|---|
| Sterile filter element | 47722478001 | Downstream sterile-grade filter element that further removes microorganisms and particles from compressed air; used where higher air quality is required | Belongs to a different filtration stage from the intake element; part numbers are not interchangeable. Confirm installation position when replacing. |
| Air filter assembly (housing) | — | Housing assembly that holds and secures the intake filter element | Check clamps, seal faces and outlet end for deformation and corrosion |
| Intake depression gauge / differential pressure gauge | — | Displays intake resistance; the final criterion for replacement intervals | Periodically check the impulse line for blockage — blockage gives a false "clean" reading |
| Seals | — | Prevent bypass between the element and the assembly | Inspect together with the element; replace if compressed, hardened or missing |
| Machine lubricating oil and oil filter | — | For the gearbox and bearing lubrication system of centrifugal machines (not compression chamber oil) | Replace at intervals specified in the machine parts manual; inspect together with the intake filter element |
Recommended replacement practice: inspect the intake filter element, downstream clean filter element and seals together, and decide replacement for each according to its own criteria. The intake element and downstream clean element have different replacement intervals (the downstream part is usually judged by cleanliness requirements rather than dust loading), so they need not be replaced together.
For specific part numbers: items marked "—" above should be confirmed against the machine's accompanying parts manual — centrifugal machines are packaged per project, and the companion part numbers listed in the manual correspond to the serial number of the applied machine; they should not be applied across projects.