Ingersoll Rand ATS11057 Air Filter Element | Centrifugal Compressor OEM Part

Product Overview

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

As an OEM part under 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 long service life — help operators reduce energy consumption and cut unplanned downtime.

Key Specifications

• Part Number: ATS11057
• Brand: Ingersoll Rand
• Component: 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
• Availability: Normally supplied (long-lead-time order item)

Technical Data

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 flow, terminal resistance)
• Beta Ratio: β₂.₀ ≥ 3333

The micro-fiberglass media delivers 99.97% efficiency at 2.0 μm and above — well beyond standard screw compressor elements (F5 class, 98% @ 5 μm) — meeting the strict intake cleanliness requirements of centrifugal compressors.

Flow and Pressure Drop

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

According to Ingersoll Rand data, this intake filter series offers a clean pressure drop 40% lower and dust holding capacity 89% higher than comparable competitor elements, reducing energy consumption and extending replacement intervals.

Dimensions and Installation

• Dimensions: approx. φ350 × φ180 × 320 mm (OD × ID × height)
• Effective Filtration Area: approx. 8–10 m² (pleated cartridge, unfolded)
• Pleats / Pleat Pitch: approx. 150–180 pleats, pitch approx. 6–8 mm
• Installation Interface: Flange or end-cap slot type, mating with the intake filter housing
• Sealing: Polyurethane (PU) foam gasket integrated into the media end frame, seamless fit, zero leakage

Materials of Construction

• Media: Micro-fiberglass
• Media Weight: approx. 120–150 g/m²
• Inner / Outer Support: Galvanized metal support mesh inside, protective mesh outside, prevents media collapse
• End Caps: Polystyrene frame — lightweight, corrosion-resistant, incinerable
• Seal: 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
• Special Features: Low initial pressure drop, high dust holding capacity, long replacement interval, zero-leak seal

Service Life and Storage

• Service Life: approx. 8000 hours under standard conditions (approx. 1 year); 4000–6000 hours in high-dust environments
• Shelf Life: 36 months in original sealed packaging, ambient dry conditions

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: determination of 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 8000 hours or 12 months, whichever comes first
• High-dust conditions (mining, building materials, foundry, etc.): every 4000–6000 hours
• Replace immediately when the differential pressure alarm triggers (≥750 Pa)

Installation Steps

1. Shut down and lock out: Switch off the main compressor power, apply lockout/tagout (LOTO), and confirm the unit is 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 seal remains in the housing groove.
4. Clean the housing interior: Wipe the inner wall and sealing surface with a clean cloth; ensure no dust, oil, or foreign matter.
5. Inspect the new element: Verify part number ATS11057 and check for media damage or seal deformation.
6. Install the new element: Place it vertically into the housing center, ensuring the seal contacts the sealing surface evenly without skewing.
7. Refit the housing: Reinstall the cover and tighten bolts or clamps 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 returns to normal (initial drop should be 120–180 Pa).

FAQ

Q1: Which Ingersoll Rand compressors does the ATS11057 fit?

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

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

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

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

A: Replace in any of three cases: ① operating differential pressure reaches the 750 Pa alarm value; ② the 8000-hour or 12-month interval is reached; ③ visual inspection reveals media damage or a hardened, deformed seal.

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 procurement in advance to avoid affecting compressor operation.

Related Parts

• ATN09504 — Air filter element, ATN series centrifugal compressors (95 kW class)
• ATN10504 — Air filter element, ATN series centrifugal compressors (105 kW class)
• ATN18504 — Air filter element, ATN series centrifugal compressors (185 kW class)
• ATN72018 — Air filter element, ATN series large centrifugal compressors (720 kW 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 compressors (panel type)
• A13368674 — Air filter element, large centrifugal compressors (panel type)

Note: The technical data above is 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 drawing and confirm the latest supply information.