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

Product Overview

ATS11057 is a genuine Ingersoll Rand air 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 precision impellers and diffusers from wear and supporting ISO 8573-1 Class 0 oil-free air quality.

As an original part within the Ingersoll Rand CC (Centrifugal Compressor) product line, P266 product group, 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 maintenance downtime.

Key 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
• Supply status: Normally supplied (long-lead-time order item)

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 final resistance
• Beta ratio: β₂.₀ ≥ 3333

Micro-fiberglass media captures 99.97% of particles 2.0 μm and above — well beyond standard screw compressor intake filters (F5 class, 98% @ 5 μm) — meeting the strict intake cleanliness requirements of centrifugal compressors.

Flow and Pressure Drop

• Rated airflow: approx. 17–32 Nm³/min (110 kW class centrifugal units)
• Initial pressure drop: approx. 120–180 Pa (clean, rated airflow)
• Operating differential range: 180–600 Pa
• Alarm / final resistance: alarm at 750 Pa; final resistance 1000 Pa (replacement required)
• Pressure drop vs. energy: every 100 Pa increase in inlet pressure loss raises compressor shaft power by approx. 0.35%

Construction and Installation

• Dimensions: approx. φ350 × φ180 × 320 mm (outer dia. × inner dia. × height)
• Effective filtration area: approx. 8–10 m² (pleated cartridge)
• Pleats: approx. 150–180 pleats, pitch approx. 6–8 mm
• Mounting interface: flange / end-cap groove type, mates with intake filter housing
• Sealing: polyurethane (PU) foam gasket integrated into the end frame for seamless, leak-free fit
• Media: micro-fiberglass, approx. 120–150 g/m²
• Support: inner galvanized metal support mesh plus outer protective mesh to prevent media collapse
• End caps: polystyrene frame — lightweight, corrosion-resistant, incinerable

Operating Conditions and Service Life

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

Standards Referenced

• ISO 5011 — intake filter performance testing (efficiency and dust capacity)
• ISO 16889 — determination of filter beta ratio
• ISO 29463 / EN 1822 — high-efficiency air filter classification and testing
• GB/T 14295 — air filters
• GB/T 6165 — air filter performance test methods (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): every 4000–6000 hours
• Replace immediately when the differential pressure alarm triggers (≥750 Pa)

Installation steps

1. Shut down and isolate: 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 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 inner wall and sealing face with a clean cloth — no dust, oil or foreign matter.
5. Inspect the new element: verify part number ATS11057 and check media for damage and gasket for deformation.
6. Install the new element: seat it vertically in the housing center so the gasket contacts the sealing face evenly, without skewing.
7. Refit the housing: replace the cover and tighten bolts or clamps evenly for a gap-free seal.
8. Start up and leak-check: run the unit, 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 ATS11057 fit?
A: ATS11057 is designed for Ingersoll Rand ATS series oil-free centrifugal compressors in the 110 kW class. If you are unsure, provide the compressor serial number and we will confirm the match.

Q2: How does ATS11057 differ from a standard screw compressor intake filter?
A: Centrifugal compressors demand much higher intake cleanliness. ATS11057 uses H11 micro-fiberglass media (99.97% @ 2.0 μm), while standard screw compressor filters are typically F5 class (98% @ 5 μm). Using the wrong filter can lead to impeller fouling, loss of dynamic balance and even impeller scrapping.

Q3: How do I know when to replace the element?
A: Replace when (1) operating differential pressure reaches the 750 Pa alarm value; (2) the 8000-hour or 12-month interval is reached; or (3) visual inspection shows media damage or a hardened, deformed gasket.

Q4: Is ATS11057 a genuine original part?
A: ATS11057 is a genuine Ingersoll Rand original part manufactured to Ingersoll Rand global technical standards and designed to fit the original intake filter housing.

Q5: What is the lead time?
A: ATS11057 is a long-lead-time order item with a standard lead time of approximately 110 days. Plan procurement in advance to avoid unplanned downtime.

Related Parts

• ATN09504 — intake filter element, ATN series centrifugal compressors (95 kW class)
• ATN10504 — intake filter element, ATN series centrifugal compressors (105 kW class)
• ATN18504 — intake filter element, ATN series centrifugal compressors (185 kW class)
• ATN72018 — intake filter element, large ATN series centrifugal compressors (720 kW class)
• A29504376 — pre-filter element for oil-free screw compressors
• A29504406 — main filter element for oil-free screw compressors (H11 class)
• A11516974 — panel-type element for medium centrifugal compressors
• A13368674 — panel-type element for large centrifugal compressors

Note: Specifications above are compiled from Ingersoll Rand centrifugal compressor filtration system technical data and industrial filtration standards. For 100% accurate matching, provide the complete compressor serial number so we can check the original parts diagram and confirm current supply information.