Ingersoll Rand ATN72018 Air Filter Element

ATN72018 is a genuine Ingersoll Rand air filter element engineered for the ATN series 720kW oil-free centrifugal compressor intake system. Built with micro-fiberglass media, it captures 99.9% of particles at 3.0 μm, shielding high-speed impellers and diffusers from dust and debris while supporting stable ISO 8573-1 Class 0 oil-free air delivery.

As a core consumable in the centrifugal compressor intake filtration system, ATN72018 is manufactured to Ingersoll Rand global technical standards. It combines high flow capacity, low resistance, and long service life to help large compressor stations cut energy use and avoid unplanned downtime.

Key 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	Normally in supply

Technical Data

Filtration Performance

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

With micro-fiberglass media, ATN72018 delivers 99.9% efficiency at 3.0 μm—well above standard screw compressor air filters (F5, 98% @ 5 μm)—meeting the stringent intake cleanliness demands of 720kW centrifugal machines and protecting their precision 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 Differential	350–600 Pa
Alarm / Final Resistance	Alarm: 700 Pa; Final: 800 Pa (replace immediately)
Pressure Drop vs. Energy	Every 100 Pa increase in intake 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 than comparable alternatives, reducing energy consumption and extending change-out intervals in high-flow duty.

Dimensions and Installation

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

Materials of Construction

Component	Material
Media	Micro-fiberglass
Media Weight	Approx. 120–150 g/m²
Support	Inner galvanized metal mesh + outer protective mesh
End Caps	Polystyrene frame, lightweight, corrosion-resistant, incinerable
Gasket	Polyurethane (PU) integrally foamed, high elasticity, seamless fit
Adhesive	Polyurethane bonding end caps to media, high-temperature resistant

Operating Conditions

Parameter	Value
Operating Temperature	Continuous: -20°C to 80°C; Max: 93°C (200°F)
Relative Humidity	≤95% RH, non-condensing
Collapse Pressure	≥ 2.8 kPa
Features	High flow, low resistance, high dust capacity, long service life, zero-leak seal

Service Life and Storage

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

Standards

• ISO 5011 — Inlet air cleaning equipment for internal combustion engines and compressors (efficiency and dust capacity)
• ISO 16889 — Hydraulic fluid power filters — multi-pass method for evaluating filtration performance
• ISO 16890 / EN 779 — Air filters for general ventilation classification
• ISO 29463 — High-efficiency filters for removing particles from air
• GB/T 14295 — Air filters
• GB/T 6165 — Test method for performance of air filters (efficiency and resistance)

Maintenance and Installation

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): 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 has fully stopped and pressure is released.
2. Open intake filter housing: Release latches or bolts, remove cover or access door.
3. Remove old element: Pull the old ATN72018 straight up; check for gasket residue in the housing groove.
4. Clean housing interior: Wipe inner walls and sealing surfaces with a clean cloth—no dust, oil, or foreign matter.
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 without skew or twist.
7. Reassemble housing: Refit cover or door, tighten bolts or latches evenly to ensure a gap-free seal.
8. Start up and leak-check: Run the compressor, listen for air leaks at the intake filter, and confirm the differential pressure gauge reads normal (initial drop should be 250–350 Pa).

FAQ

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 demand far higher intake cleanliness and flow than screw machines. ATN72018 uses micro-fiberglass high-efficiency media (99.9% @ 3.0 μm) with a single-element flow of 50–80 Nm³/min, while typical screw compressor filters are F5 class (98% @ 5 μm) with only a few to tens of Nm³/min. Using a standard filter on a large centrifugal compressor 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 operating differential pressure reaches the 700 Pa alarm; ② the 4,000–6,000 hour or 8–10 month interval is reached; ③ visual inspection reveals media damage or gasket aging/deformation.

Q4: Is ATN72018 a genuine original part?

A: ATN72018 is a genuine Ingersoll Rand original part, manufactured to Ingersoll Rand global technical standards and designed to fit the original intake filter housing.

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.

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 (coarse)
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: The technical parameters above are compiled from Ingersoll Rand centrifugal compressor filtration system specifications and industrial filtration standards. For 100% accurate matching, please provide the complete compressor serial number so we can check the original parts diagram and confirm current supply.