Ingersoll Rand ATN72018 Air Filter Element

ATN72018 is a genuine Ingersoll Rand air intake filter element engineered for ATN-series 720kW oil-free centrifugal compressors. The micro-fiberglass media captures 99.9% of particles at 3.0 μm, blocking dust and particulate from entering the compression chamber to protect high-speed impellers and diffusers. This supports stable delivery of ISO 8573-1 Class 0 oil-free air quality.

As a core consumable in the centrifugal compressor intake system, ATN72018 is manufactured to Ingersoll Rand global technical standards. Its high flow capacity, low resistance, and high dust-holding capacity help large centrifugal compressor stations reduce energy consumption and unplanned downtime.

Technical Specifications

Item	Specification
Part Number	ATN72018
Brand	Ingersoll Rand
Component	Air Filter Element
Product Line	CC (Centrifugal Compressor)
Compatible Models	ATN-series oil-free centrifugal compressors (720kW class)
Unit of Measure	EA
Availability	In stock

1. Filtration Performance

Parameter	Value
Filtration Rating	3.0 μm
Efficiency	99.9% @ 3.0 μm
Filter Class	F8 (medium-high efficiency, EN 779 / ISO 16890)
Dust Holding Capacity	Approx. 7.2 kg (at rated flow, final resistance)
Beta Ratio β	β₃.₀ ≥ 1000

The micro-fiberglass media achieves 99.9% efficiency at 3.0 μm, significantly higher than standard screw compressor air filters (F5, 98% @ 5μm), meeting the stringent intake cleanliness requirements of high-power centrifugal compressors and protecting the precision impellers and diffusers of 720kW units.

2. Flow and Pressure Drop

Parameter	Value
Rated Air Flow	Approx. 50–80 Nm³/min (per element, for 720kW centrifugal units)
Initial Pressure Drop	Approx. 250–350 Pa (clean, at rated flow)
Operating Differential	350–600 Pa
Alarm / Final Resistance	Alarm: 700 Pa; Final: 800 Pa (replace immediately)
Energy Impact	Every 100 Pa increase in intake pressure loss raises compressor shaft power by approx. 0.35%

The micro-fiberglass design delivers approximately 40% lower clean pressure drop and 89% higher dust holding capacity compared to competing elements, reducing energy consumption and extending service intervals in high-flow applications.

3. Dimensions and Installation

Parameter	Value
Dimensions	Approx. φ600 × φ310 × 600 mm (OD × ID × H)
Effective Filter Area	Approx. 25–30 m² (pleated media)
Pleats / Pitch	Approx. 300–350 pleats, pitch approx. 6–7 mm
Mounting	Flange or end-cap slot, mates with large intake filter housing
Sealing	Polyurethane (PU) foam gasket, integrated into end frame, zero-leak fit

4. Construction Materials

Parameter	Value
Media	Micro-fiberglass
Media Weight	Approx. 120–150 g/m²
Support	Galvanized metal inner and outer support mesh to prevent media collapse
End Caps	Polystyrene frame, lightweight, corrosion-resistant, incinerable
Gasket	Polyurethane (PU) foam, high elasticity, seamless fit
Adhesive	Polyurethane adhesive, heat-resistant, no debonding

5. 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	≥ 2.8 kPa
Features	High flow, low resistance, high dust holding, long service life, zero-leak seal

6. Service Life and Maintenance

Parameter	Value
Service Life	Approx. 4,000–6,000 hours (8–10 months) under standard conditions; reduced to 3,000 hours in high-dust environments
Shelf Life	36 months in sealed original packaging, dry, ambient temperature

7. Standards

• ISO 5011: Inlet air filters for internal combustion engines and compressors — performance testing
• ISO 16889: Hydraulic filter elements — beta ratio determination
• ISO 16890 / EN 779: General ventilation air filters — classification
• ISO 29463: High-efficiency air filters — performance testing
• GB/T 14295: Air filters
• GB/T 6165: Air filter performance test methods (efficiency and resistance)

Installation and Maintenance

Replacement Interval

• Standard conditions: every 4,000–6,000 hours or 8–10 months, whichever comes first
• High-dust conditions (mining, building materials, cement, steel): every 3,000 hours
• Replace immediately when differential pressure alarm triggers (≥700 Pa)

Installation Steps

1. Shut down and lock out: Turn off main power, apply LOTO, confirm the unit is fully stopped and depressurized.
2. Open intake filter housing: Release latches or bolts on the large intake filter housing and remove the cover or access door.
3. Remove old element: Pull the old ATN72018 element straight up; check for any gasket residue in the housing groove.
4. Clean housing interior: Wipe the inner walls and sealing surface with a clean cloth; ensure no dust, oil, or foreign matter remains.
5. Inspect new element: Verify part number ATN72018, check media for damage, pleat deformation, or gasket aging.
6. Install new element: Place vertically into the housing center, ensuring the gasket seats evenly on the sealing surface without skew or twist.
7. Reassemble housing: Refit cover or access door; tighten bolts or latches evenly for a gap-free seal.
8. Start up and leak-check: Run the compressor, listen for air leaks at the intake filter, and confirm differential pressure gauge reads 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 oil-free centrifugal compressors. If you are unsure about 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 require much higher intake cleanliness and flow than screw compressors. ATN72018 uses micro-fiberglass media (99.9% @ 3.0μm) and handles 50–80 Nm³/min per element, while standard screw filters are typically F5 (98% @ 5μm) with much lower flow. Using a standard filter can lead to impeller fouling, imbalance, and costly impeller damage.

Q3: How do I know when to replace the air filter?

A: Replace when: (1) differential pressure reaches the 700 Pa alarm; (2) the 4,000–6,000 hour or 8–10 month interval is reached; (3) visual inspection shows media damage or gasket deformation.

Q4: Is ATN72018 a genuine OEM part?

A: Yes, ATN72018 is a genuine Ingersoll Rand part manufactured to global technical standards and fits original Ingersoll Rand intake filter housings.

Q5: Is one filter element sufficient?

A: 720kW centrifugal compressors typically use multiple elements in parallel. The exact number depends on the intake filter assembly. Provide the serial number to confirm the configuration.

Related Parts

Part Number	Description	Notes
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
A29504406	Air Filter Element	Oil-free screw compressor main filter (H11 class)
A11516974	Air Filter Element	Medium centrifugal compressor filter (panel type)
A13368674	Air Filter Element	Large centrifugal compressor filter (panel type)

Note: Technical parameters are based on Ingersoll Rand centrifugal compressor filtration system specifications and industrial filter standards. For 100% accurate matching, please provide the complete compressor serial number so we can verify the original parts diagram and confirm the latest supply information.