Ingersoll Rand ATN72018 Air Filter Element

Product Overview

ATN72018 is a genuine Ingersoll Rand air filter element engineered for the intake filtration system of 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 matter from entering 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 for large centrifugal compressor intake systems, ATN72018 is manufactured to Ingersoll Rand global technical standards. It combines high flow capacity, low resistance, high dust holding capacity, and long service life—helping large compressor stations reduce energy consumption and unplanned downtime.

Technical Specifications

Filtration Performance

• 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 and final resistance)
• Beta ratio: β₃.₀ ≥ 1000

Flow & Pressure Drop

• Rated flow capacity: 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 pressure: 350–600 Pa
• Alarm / final resistance: Alarm at 700 Pa; final resistance 800 Pa (replace immediately)
• Energy impact: Every 100 Pa increase in intake pressure loss raises compressor shaft power by approx. 0.35%

Dimensions & Installation

• Dimensions: approx. φ600 × φ310 × 600 mm (outer diameter × inner diameter × height)
• Effective filtration area: approx. 25–30 m² (pleated media)
• Pleats: approx. 300–350 pleats, pitch approx. 6–7 mm
• Mounting interface: Flange or end-cap groove connection to large intake 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 support mesh + outer protective mesh
• End caps: Polystyrene frame (lightweight, corrosion-resistant, incinerable)
• Seal: One-piece polyurethane (PU) foam gasket
• Adhesive: Polyurethane bonding for high-temperature resistance

Operating Conditions

• Operating temperature: -20°C to 80°C continuous; 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 interval, zero-leak seal

Service Life & Storage

• 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 original sealed packaging, dry, ambient conditions

Standards

• ISO 5011 — Inlet air cleaning equipment for internal combustion engines and compressors: performance testing
• 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 air filters: performance testing
• GB/T 14295 — Air filters
• GB/T 6165 — Test methods for air filter performance (efficiency and resistance)

Maintenance & 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, etc.): every 3,000 hours
• Replace immediately when differential pressure alarm triggers (≥700 Pa)

Installation Steps

1. Shut down and lock out: Disconnect main power, apply LOTO, confirm the unit has fully stopped and depressurized.
2. Open the intake filter housing: Release latches or bolts and remove the cover or access door.
3. Remove the old element: Pull the old ATN72018 element straight up; check for any gasket residue in the housing groove.
4. Clean the housing interior: Wipe the inner walls and sealing surfaces with a clean cloth—no dust, oil, or debris.
5. Inspect the new element: Verify part number ATN72018, check media for damage, pleat deformation, and gasket condition.
6. Install the new element: Place vertically into the housing center, ensuring the gasket seats evenly without distortion.
7. Reassemble the housing: Refit the cover or access door and 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 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 require much higher intake air cleanliness and flow capacity than screw compressors. ATN72018 uses micro-fiberglass high-efficiency media (99.9% @ 3.0 μm) with a flow capacity of 50–80 Nm³/min per element, whereas standard screw compressor filters are typically F5 class (98% @ 5 μm) with much lower flow. Using an inferior filter can cause impeller fouling, imbalance, and costly impeller damage.

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

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

Q4: Is ATN72018 a genuine OEM part?

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

Q5: Is one filter element enough?

A: Large 720kW centrifugal compressor intake filters typically use multiple elements in parallel. The exact quantity depends on the intake filter assembly specification—please provide the serial number to confirm the configuration.

Related Parts

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

Note: Technical parameters are based on 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.