Product
Ingersoll Rand ATN72018 Air Filter Element | 720kW Centrifugal Compressor OEM Part
Genuine Ingersoll Rand ATN72018 air filter element for ATN-series 720kW oil-free centrifugal compressors. Micro-fiberglass media, 99.9% filtration efficiency at 3.0 μm, high dust-holding capacity and low pressure drop to protect precision impellers and diffusers.
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Ingersoll Rand ATN72018 Air Filter Element — Product Details
The ATN72018 air filter element is a genuine Ingersoll Rand intake filter element engineered for ATN-series 720kW oil-free centrifugal compressors. Using micro-fiberglass media, it delivers over 99.9% filtration efficiency at 3.0 μm, blocking dust and particulate matter from the compression chamber to protect high-speed precision impellers and diffusers, and supporting stable ISO 8573-1 Class 0 oil-free air quality.
As a core spare part in the Ingersoll Rand centrifugal compressor intake filtration system, ATN72018 is built to Ingersoll Rand global technical standards, offering high flow with low resistance, high dust-holding capacity, and long service life — helping large centrifugal compressor stations reduce energy consumption and unplanned downtime.
Basic Specifications
| Item | Specification |
|---|---|
| Part Number | ATN72018 |
| Brand | Ingersoll Rand |
| Part Name | Air Filter Element |
| Product Line | CC (Centrifugal Compressor) |
| Compatible Models | ATN Series oil-free centrifugal compressors (720kW class) |
| Unit of Measure | EA |
| Status | Normally supplied |
Technical Parameters
Filtration Performance
| Parameter | Value |
|---|---|
| Filtration Rating | 3.0 μm |
| Filtration Efficiency | 99.9% @ 3.0 μm |
| Filtration Class | F8 (medium-high efficiency, per EN 779 / ISO 16890) |
| Dust-Holding Capacity | Approx. 7.2 kg (at rated flow, final resistance) |
| Beta Ratio β | β₃.₀ ≥ 1000 |
ATN72018 uses micro-fiberglass media with 99.9% efficiency at 3.0 μm and above — well above standard screw compressor air filters (F5, 98% @ 5 μm) — meeting the high intake cleanliness demands of large centrifugal compressors and protecting 720kW class impellers and diffusers.
Flow and Pressure Drop
| Parameter | Value |
|---|---|
| Rated Air Flow | Approx. 50–80 Nm³/min (per element, for 720kW class centrifugal units) |
| Initial Pressure Drop | Approx. 250–350 Pa (clean, at rated flow) |
| Operating Pressure Differential | 350–600 Pa |
| Alarm / Final Resistance | Alarm: 700 Pa; final: 800 Pa (must replace) |
| Pressure Drop vs. Energy | Every 100 Pa increase in inlet pressure loss raises compressor shaft power by approx. 0.35% |
The micro-fiberglass media design delivers about 40% lower clean pressure drop and approximately 89% higher dust-holding capacity than comparable alternatives, reducing energy consumption and extending replacement intervals under high-flow conditions.
Dimensions and Installation
| Parameter | Value |
|---|---|
| Dimensions | Approx. φ600 × φ310 × 600 mm (OD × ID × height) |
| Effective Filtration Area | Approx. 25–30 m² (pleated cartridge) |
| Pleats / Pleat Spacing | Approx. 300–350 pleats, spacing approx. 6–7 mm |
| Installation Interface | Flange / end-cap groove type, mates with large intake filter housing |
| Sealing | Polyurethane (PU) foam gasket integrated into the end frame, seamless zero-leak fit |
Materials of Construction
| Parameter | Value |
|---|---|
| Media | Micro-fiberglass |
| Media Weight | Approx. 120–150 g/m² |
| Support | Inner galvanized metal support mesh + outer protective mesh to prevent media collapse |
| End Caps | Polystyrene frame — lightweight, corrosion-resistant, incinerable |
| Seal | Polyurethane (PU) one-piece foam gasket, high elasticity, seamless fit |
| Adhesive | Polyurethane bonding of end caps and media, high-temperature resistant, no debonding |
Operating Conditions
| Parameter | Value |
|---|---|
| Operating Temperature | Continuous: -20°C to 80°C; max. 93°C (200°F) |
| Relative Humidity | ≤95% RH, no condensation |
| Collapse Pressure Resistance | Overall differential pressure ≥ 2.8 kPa |
| Features | High flow with low resistance, high dust-holding capacity, long replacement interval, zero-leak seal |
Service Life and Maintenance
| Parameter | Value |
|---|---|
| Service Life | Approx. 4,000–6,000 hours (approx. 8–10 months) under standard conditions; reduced to 3,000 hours in high-dust environments |
| Shelf Life | 36 months in original sealed packaging, at room temperature and dry conditions |
Compliance Standards
- ISO 5011 — Inlet air cleaning equipment for internal combustion engines and compressors: performance testing (efficiency and dust capacity)
- ISO 16889 — Hydraulic fluid power filters: determination of beta ratio
- ISO 16890 / EN 779 — General ventilation air filter classification
- ISO 29463 — High-efficiency air filters (HEPA and ULPA) performance testing
- GB/T 14295 — Air filters
- GB/T 6165 — Methods for performance testing of air filters (efficiency and resistance)
Standard Maintenance and Installation Steps
Replacement Intervals
- Standard conditions: every 4,000–6,000 hours or 8–10 months, whichever comes first
- High-dust conditions (mining, building materials, cement, steel, etc.): every 3,000 hours
- Replace immediately when the pressure differential alarm triggers (≥700 Pa)
Installation Steps
- Shut down and isolate power: switch off the main compressor power, apply lockout/tagout (LOTO), confirm the unit has fully stopped and is depressurized.
- Open the intake filter housing: release the latches or bolts on the large intake filter housing and remove the cover or access door.
- Remove the old element: pull the old ATN72018 element straight up; check whether the seal ring remains in the housing groove.
- Clean the housing interior: wipe the housing inner wall and sealing surface with a clean cloth — no dust, oil, or foreign matter.
- Inspect the new element: verify part number ATN72018; check media for damage, pleats for deformation, and seal for aging.
- Install the new element: place it vertically in the housing center, ensuring the seal contacts the sealing surface evenly — no tilt or twist.
- Reassemble the housing: refit the cover or access door and tighten bolts or latches evenly for a gap-free seal.
- Start up and leak-check: run the compressor, listen for air leaks at the intake filter, and confirm the pressure differential gauge returns to normal (initial drop should be 250–350 Pa).
Frequently Asked Questions
Q1: Which Ingersoll Rand compressors does ATN72018 fit?
A: ATN72018 is designed for Ingersoll Rand ATN-series 720kW high-power oil-free centrifugal compressors. If you are unsure whether it fits your model, provide the compressor serial number and we will match it precisely.
Q2: How is ATN72018 different from a standard screw compressor air filter?
A: Centrifugal compressors demand far higher intake cleanliness and airflow than screw compressors. ATN72018 uses micro-fiberglass high-efficiency media (99.9% @ 3.0 μm) with a single-element flow of 50–80 Nm³/min, whereas standard screw compressor filters are only F5 class (98% @ 5 μm) with a flow of a few to a few dozen Nm³/min. Using a standard filter can cause dust buildup on large centrifugal compressor impellers, upset dynamic balance, and even lead to costly impeller wear and scrapping.
Q3: How do I know when to replace the air filter element?
A: Replace in three cases: ① operating pressure differential reaches the 700 Pa alarm value; ② the 4,000–6,000 hour or 8–10 month interval is reached; ③ visual inspection reveals media damage or seal aging/deformation.
Q4: Is ATN72018 a genuine OEM part?
A: ATN72018 is a genuine Ingersoll Rand part, manufactured to Ingersoll Rand global technical standards and designed to fit Ingersoll Rand original intake filter housings.
Q5: Is one filter element enough?
A: 720kW large centrifugal compressor intake filters typically use multiple elements in parallel. The exact quantity depends on the intake filter assembly specification — provide the serial number to confirm the configuration quantity.
Related Parts
| Part Number | Name | Description |
|---|---|---|
| ATS11057 | Air Filter Element | ATS-series centrifugal compressor intake filter (110kW class) |
| ATN09504 | Air Filter Element | ATN-series centrifugal compressor intake filter (95kW class) |
| ATN10504 | Air Filter Element | ATN-series centrifugal compressor intake filter (105kW class) |
| ATN18504 | Air Filter Element | ATN-series centrifugal compressor intake filter (185kW class) |
| A29504376 | Air Filter Element | Oil-free screw compressor pre-filter element |
| A29504406 | Air Filter Element | Oil-free screw compressor main filter element (H11 class) |
| A11516974 | Air Filter Element | Medium centrifugal compressor filter element (panel type) |
| A13368674 | Air Filter Element | Large centrifugal compressor filter element (panel type) |
Note: The technical parameters above are based on Ingersoll Rand official centrifugal compressor filtration system specifications and industrial filtration standards. For 100% accurate matching, provide the complete compressor serial number so we can check the original parts diagram and confirm the latest supply information.