Ingersoll Rand ATS11057 Air Filter Element | Genuine ATS Centrifugal Compressor Intake Filter

Product Overview

ATS11057 is a genuine Ingersoll Rand intake air filter element engineered specifically for ATS series oil-free centrifugal compressors. Built with micro-fiberglass media rated at 99.97% filtration efficiency at 2.0 μm, it blocks dust and particulate from entering the core compression chamber, protecting precision impellers and diffusers from erosion and maintaining ISO 8573-1 Class 0 oil-free air quality.

As an OEM part within the Ingersoll Rand CC (Centrifugal Compressor) product line, P266 product group, the ATS11057 is manufactured to Ingersoll Rand global technical standards. Its three core advantages — low initial pressure drop, high dust-holding capacity, and extended service life — help operators cut energy consumption and reduce unplanned downtime.

Basic Specifications

• Part Number: ATS11057
• Brand: Ingersoll Rand
• Part Type: Air Filter Element
• Product Line: CC (Centrifugal Compressor)
• Product Group: P266
• Compatible Machines: ATS series oil-free centrifugal compressors (110 kW class)
• Unit of Measure: EA (each)
• Supply Status: Normally supplied (long-lead-time order item)

Technical Specifications

Filtration Performance

• Filtration Rating: 2.0 μm
• Filtration Efficiency: 99.97% @ 2.0 μm
• Filter Class: H11 (sub-HEPA, per EN 1822 / ISO 29463)
• Dust-Holding Capacity: Approx. 2.2 kg (at rated airflow and terminal resistance)
• Beta Ratio β: β₂.₀ ≥ 3333

With micro-fiberglass media, the ATS11057 achieves 99.97% efficiency on particles 2.0 μm and above — well beyond standard screw compressor intake filters (F5 class, 98% @ 5 μm) — meeting the stringent intake cleanliness demands of centrifugal compressors.

Flow and Pressure Drop

• Rated Airflow: Approx. 17–32 Nm³/min (for 110 kW class centrifugal units)
• Initial Pressure Drop: Approx. 120–180 Pa (clean, at rated airflow)
• Operating Differential Range: 180–600 Pa
• Alarm / Terminal Resistance: Alarm at 750 Pa; terminal at 1000 Pa (replace immediately)
• Pressure Drop vs. Energy: Every 100 Pa increase in intake pressure loss raises compressor shaft power by approx. 0.35%

Ingersoll Rand data indicates this intake filter series runs at a clean pressure drop 40% lower and dust-holding capacity 89% higher than comparable alternatives, reducing energy consumption and extending replacement intervals.

Dimensions and Mounting

• Dimensions: Approx. φ350 × φ180 × 320 mm (OD × ID × height)
• Effective Filter Area: Approx. 8–10 m² (pleated cartridge unfolded area)
• Pleats / Pleat Spacing: Approx. 150–180 pleats, spacing approx. 6–8 mm
• Mounting Interface: Flange or end-cap slot type, mates with intake filter housing
• Sealing: Polyurethane (PU) foam gasket integrated into the media end frame for seamless, zero-leak fit

Material Construction

• Media: Micro-fiberglass
• Media Weight: Approx. 120–150 g/m²
• Support Structure: Galvanized metal inner support mesh plus outer protective mesh to prevent media collapse
• End Caps: Polystyrene frame — lightweight, corrosion-resistant, incinerable
• Gasket: One-piece polyurethane (PU) foam gasket, high-elasticity, seamless fit
• Bonding: Polyurethane adhesive bonds end caps to media; heat-resistant, no debonding

Operating Conditions

• Operating Temperature: Continuous -20°C to 80°C; max 93°C (200°F)
• Relative Humidity: ≤95% RH, no condensation
• Collapse Pressure Resistance: ≥3.0 kPa overall
• Key Features: Low initial pressure drop, high dust-holding capacity, extended replacement interval, zero-leak sealing

Service Life and Storage

• Service Life: Approx. 8,000 hours under standard conditions (about 1 year); 4,000–6,000 hours in high-dust environments
• Shelf Life: 36 months in original sealed packaging, dry, ambient-temperature storage

Applicable 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 — multi-pass method for evaluating filtration performance (beta ratio)
• ISO 29463 / EN 1822: High-efficiency air filters (HEPA and ULPA) — classification and testing
• GB/T 14295: Air filters
• GB/T 6165: Test methods for air filter performance (efficiency and resistance)

Maintenance and Installation

Replacement Intervals

• Standard conditions: every 8,000 hours or 12 months, whichever comes first
• High-dust conditions (mining, building materials, foundry, etc.): every 4,000–6,000 hours
• Immediately upon differential pressure alarm (≥750 Pa)

Installation Steps

1. Shut down and isolate power: Turn off the main compressor power supply, apply lockout/tagout (LOTO), and confirm the unit has fully stopped.
2. Open the intake filter housing: Release the housing clamps or bolts and remove the cover.
3. Remove the old element: Pull the old ATS11057 element straight up and check whether the gasket remains in the housing groove.
4. Clean the housing interior: Wipe the housing inner wall and sealing surface with a clean cloth — no dust, oil, or debris.
5. Inspect the new element: Verify the part number ATS11057 and check for media damage or gasket deformation.
6. Install the new element: Place it vertically into the housing center, ensuring the gasket seats evenly on the sealing surface without skewing.
7. Reassemble the housing: Refit the cover and tighten bolts or clamps 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 normally (initial pressure drop should be 120–180 Pa).

Frequently Asked Questions

Q1: Which Ingersoll Rand compressors does the ATS11057 fit?

A: The ATS11057 is designed specifically for Ingersoll Rand ATS series oil-free centrifugal compressors in the 110 kW class. If you are unsure whether it fits your machine, provide the compressor serial number and we will match it precisely.

Q2: How is the ATS11057 different from a standard screw compressor intake filter?

A: Centrifugal compressors demand far higher intake cleanliness than screw compressors. The ATS11057 uses H11-class micro-fiberglass media (99.97% @ 2.0 μm), whereas standard screw compressor intake filters are typically F5 class (98% @ 5 μm). Using a standard filter can cause impeller fouling, dynamic balance loss, and even impeller wear requiring replacement.

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

A: Replace in any of three cases: (1) operating differential pressure reaches the 750 Pa alarm value; (2) the 8,000-hour or 12-month interval is reached; (3) visual inspection reveals media damage or a hardened, deformed gasket.

Q4: Is the ATS11057 a genuine OEM part?

A: Yes. The ATS11057 is a genuine Ingersoll Rand part, manufactured to Ingersoll Rand global technical standards and designed to fit the original intake filter housing.

Q5: What is the lead time for the ATS11057?

A: The ATS11057 is a long-lead-time order item with a standard lead time of approximately 110 days. We recommend planning purchases in advance to avoid disruption to compressor operation.

Related Parts

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• A29504406 — Air filter element, oil-free screw compressor main filter (H11 class)
• A11516974 — Air filter element, medium centrifugal compressor (panel type)
• A13368674 — Air filter element, large centrifugal compressor (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, provide the complete compressor serial number and we will check the OEM parts diagram and confirm the latest supply information.