Ingersoll Rand ATN72018 Air Filter Element | 720kW Centrifugal Compressor OEM Part

Product Overview

The ATN72018 air filter element is a genuine Ingersoll Rand inlet filter designed for ATN series 720kW oil-free centrifugal compressors. Built with micro-fiberglass media, it captures 99.9% of particles at 3.0 μm, preventing dust and particulate ingress into the compression chamber. This protects high-speed precision impellers and diffusers from erosion and maintains stable ISO 8573-1 Class 0 oil-free air quality.

As a core consumable in the centrifugal compressor inlet filtration system, the ATN72018 is manufactured to Ingersoll Rand global technical standards. It delivers high flow capacity, low resistance, high dust-holding capacity, and long service life — helping large centrifugal compressor stations reduce energy consumption and unplanned downtime.

Specifications

Filter Performance

• Part Number: ATN72018
• Brand: Ingersoll Rand
• Component: Air Filter Element
• Product Line: CC (Centrifugal Compressor)
• Compatible Models: ATN series oil-free centrifugal compressors (720kW range)
• Unit of Measure: EA
• Filtration Rating: 3.0 μm
• Filtration 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, terminal pressure drop)
• Beta Ratio: β₃.₀ ≥ 1000

Compared with standard screw compressor air filters (F5 grade, 98% @ 5μm), the ATN72018 delivers significantly higher efficiency, meeting the stringent inlet cleanliness demands of high-power centrifugal compressors.

Flow & Pressure Drop

• 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 / Terminal Pressure Drop: Alarm at 700 Pa; terminal at 800 Pa (replace immediately)
• Energy Impact: Every 100 Pa increase in inlet pressure loss raises compressor shaft power by approx. 0.35%

The micro-fiberglass construction provides approximately 40% lower clean pressure drop and 89% higher dust holding capacity versus comparable competitors, reducing energy costs and extending replacement intervals in high-flow applications.

Dimensions & Installation

• Dimensions: Approx. φ600 × φ310 × 600 mm (OD × ID × H)
• Effective Filtration Area: Approx. 25–30 m² (pleated cartridge)
• Pleats: Approx. 300–350 pleats, 6–7 mm pitch
• Mounting: Flange or end-cap groove interface, mates with large inlet filter housing
• Sealing: Polyurethane (PU) foam gasket integrated into the end frame for zero-leak fit

Materials of Construction

• Media: Micro-fiberglass
• Media Weight: Approx. 120–150 g/m²
• Support: Inner galvanized metal mesh + outer protective mesh to prevent media collapse
• End Caps: Polystyrene frame — lightweight, corrosion-resistant, incinerable
• Gasket: One-piece polyurethane (PU) foam seal, high elasticity, seamless fit
• Adhesive: Polyurethane bonding for end caps and media, heat-resistant, no delamination

Operating Conditions

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

Service Life & Storage

• 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 filters for internal combustion engines and compressors: efficiency and dust capacity
• ISO 16889 — Hydraulic fluid power filters: 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)

Maintenance & Installation

Replacement Intervals

• Standard conditions: every 4,000–6,000 hours or 8–10 months, whichever comes first
• High-dust environments (mining, construction materials, cement, steel): every 3,000 hours
• Replace immediately when pressure drop 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 the inlet filter housing: Release latches or bolts, remove the cover or access door.
3. Remove old element: Pull the old ATN72018 straight up; check for any gasket residue in the housing groove.
4. Clean housing interior: Wipe the inner walls and sealing surfaces with a clean cloth — free of dust, oil, and debris.
5. Inspect new element: Verify part number ATN72018; check media integrity, pleat shape, and gasket condition.
6. Install new element: Place vertically in the center of the housing; ensure the gasket seats evenly without distortion.
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, and confirm the pressure differential gauge returns to normal (initial drop should be 250–350 Pa).

FAQ

Q1: Which Ingersoll Rand compressors does the ATN72018 fit?
A: It is designed for ATN series 720kW high-power oil-free centrifugal compressors. If unsure, provide your compressor serial number and we will confirm exact compatibility.

Q2: How is the ATN72018 different from standard screw compressor air filters?
A: Centrifugal compressors demand much higher inlet cleanliness and flow. The ATN72018 uses micro-fiberglass media (99.9% @ 3.0μm) with 50–80 Nm³/min per element, while typical screw compressor filters are F5 grade (98% @ 5μm) with much lower flow. Using a standard filter can lead to impeller fouling, imbalance, and costly damage.

Q3: How do I know when to replace the filter?
A: Replace when: (1) operating pressure drop reaches the alarm value of 700 Pa; (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 the ATN72018 a genuine OEM part?
A: Yes, it is a genuine Ingersoll Rand part manufactured to global technical standards and fits original Ingersoll Rand inlet filter housings.

Q5: Is one filter element sufficient?
A: 720kW centrifugal compressors typically use multiple elements in parallel. The exact quantity depends on the inlet filter assembly. Provide your serial number to confirm the configuration.

Related Parts

• ATS11057 — Air filter element for ATS series centrifugal compressors (110kW range)
• ATN09504 — Air filter element for ATN series centrifugal compressors (95kW range)
• ATN10504 — Air filter element for ATN series centrifugal compressors (105kW range)
• ATN18504 — Air filter element for ATN series centrifugal compressors (185kW range)
• A29504376 — Pre-filter element for oil-free screw compressors
• A29504406 — Main filter element for oil-free screw compressors (H11 grade)
• A11516974 — Panel filter element for medium centrifugal compressors
• A13368674 — Panel filter element for large centrifugal compressors

Note: Technical parameters 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 verify the original parts diagram and confirm current availability.