Ingersoll Rand ATS11057 Air Filter Element | ATS Centrifugal Compressor OEM Part

Product Overview

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

As an original component of the Ingersoll Rand CC (Centrifugal Compressor) product line, P266 product group, the ATS11057 is built to Ingersoll Rand global technical standards. Its three core advantages — low initial pressure drop, high dust-holding capacity, and extended service life — help operators reduce energy consumption and minimize downtime for maintenance.

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 flow, final resistance)
• Beta ratio: β₂.₀ ≥ 3333

The micro-fiberglass media captures 99.97% of particles 2.0 μm and larger — significantly outperforming standard rotary-screw compressor air filters (F5 class, 98% @ 5 μm) — meeting the stringent intake cleanliness demands 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 / final resistance: alarm at 750 Pa; final resistance 1000 Pa (must replace)
• Pressure drop vs. energy: every 100 Pa increase in inlet pressure loss raises compressor shaft power by approx. 0.35%

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

Dimensions and Installation

• Dimensions: approx. φ350 × φ180 × 320 mm (outer dia. × inner dia. × height)
• Effective filtration area: approx. 8–10 m² (pleated cartridge, unfolded)
• Pleats: approx. 150–180 pleats, pitch approx. 6–8 mm
• Mounting: flange / end-cap groove interface, 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: galvanized metal inner support mesh + outer protective mesh to prevent 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 differential
• Key features: low initial pressure drop, high dust-holding capacity, long replacement interval, zero-leak seal

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

Compliance Standards

• ISO 5011: intake filter performance testing for engines and compressors (efficiency and dust capacity)
• ISO 16889: determination of filter beta ratio for hydraulic transmission filters
• ISO 29463 / EN 1822: classification and testing of high-efficiency air filters (HEPA and ULPA)
• GB/T 14295: air filters
• GB/T 6165: air filter performance test methods (efficiency and resistance)

Maintenance and Installation

Replacement Interval

• 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
• Replace immediately when differential pressure alarm triggers (≥750 Pa)

Installation Steps

1. Shut down and lock out: switch off the main power, 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 top cover.
3. Remove the old element: pull the old ATS11057 element straight up; check whether the gasket remains in the housing groove.
4. Clean the housing interior: wipe the inner walls and sealing surfaces with a clean cloth — no dust, oil, or foreign matter.
5. Inspect the new element: verify 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. Refit the housing: reinstall the top 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 normal (initial drop should be 120–180 Pa).

Frequently Asked Questions

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 power class. If you are unsure about your model, provide the compressor serial number and we will confirm the exact match.

Q2: How is the ATS11057 different from a standard rotary-screw compressor air 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), while standard screw compressor filters are only F5 class (98% @ 5 μm). Using a standard filter can cause dust buildup on centrifugal impellers, disrupt dynamic balance, and even lead to impeller wear and scrapping.

Q3: How do I know when the air filter element needs replacing?
A: Replace in any of three cases: (1) operating differential 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 original part?
A: The ATS11057 is a genuine Ingersoll Rand original part, produced to Ingersoll Rand global technical standards and designed to fit Ingersoll Rand original intake filter housings.

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. Plan your procurement in advance to avoid disrupting compressor operation.

Related Part Numbers

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

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