Ingersoll Rand ATS11057 Air Filter Element | ATS 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% @ 2.0 μm, it blocks dust and particulate matter from entering the core compression chamber, protecting the precision impeller and diffuser from erosion and safeguarding 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 cut running energy costs and reduce unplanned downtime.

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Basic Specifications

Item	Specification
Part Number	ATS11057
Brand	Ingersoll Rand
Part Name	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
Status	Normally supplied (long lead-time order item)

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Technical Specifications

1. Filtration Performance

Parameter	Value
Filtration Rating	2.0 μm
Filtration Efficiency	99.97% @ 2.0 μm
Filter Class	H11 (sub-high efficiency, per EN 1822 / ISO 29463)
Dust Holding Capacity	Approx. 2.2 kg (at rated flow, terminal resistance)
Filtration Ratio β	β₂.₀ ≥ 3333

The ATS11057 uses micro-fiberglass media achieving 99.97% efficiency on particles 2.0 μm and above — well above standard screw compressor air filters (F5 class, 98% @ 5 μm) and matched to the strict intake cleanliness demands of centrifugal compressors.

2. Flow and Pressure Drop

Parameter	Value
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: 750 Pa; terminal: 1000 Pa (mandatory replacement)
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 runs at a clean pressure drop 40% lower than comparable competitors, with 89% higher dust holding capacity — cutting compressor energy consumption and extending replacement intervals.

3. Dimensions and Installation

Parameter	Value
Dimensions	Approx. φ350 × φ180 × 320 mm (OD × ID × height)
Effective Filter Area	Approx. 8–10 m² (pleated cartridge, unfolded)
Pleats / Pleat Pitch	Approx. 150–180 pleats, pitch approx. 6–8 mm
Mounting Interface	Flange / end-cap groove type, mates to intake filter housing
Sealing	Polyurethane (PU) foam gasket integrated into the media end frame; seamless, zero-leak fit

4. Construction Materials

Parameter	Value
Media	Micro-fiberglass
Media Weight	Approx. 120–150 g/m²
Inner / Outer Support	Inner galvanized metal support mesh + 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 delamination

5. Operating Conditions

Parameter	Value
Operating Temperature	Continuous: -20°C to 80°C; max. 93°C (200°F)
Relative Humidity	≤95% RH, no condensation
Collapse / Burst Resistance	Overall collapse differential ≥ 3.0 kPa
Key Features	Low initial pressure drop, high dust holding capacity, long replacement interval, zero-leak seal

6. Service Life and Storage

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

7. Applicable Standards

• ISO 5011 — Inlet air cleaning equipment for internal combustion engines and compressors (efficiency and dust capacity)
• ISO 16889 — Hydraulic fluid power filters, determination of filtration ratio β
• 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)

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Maintenance and Installation

Replacement Intervals

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

Installation Steps

1. Shut down and isolate power — switch off the compressor 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; check whether the gasket remains in the housing groove.
4. Clean the housing interior — wipe the inner walls and sealing face with a clean cloth; ensure no dust, oil, or foreign matter remains.
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 tilting.
7. Refit the housing — replace 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 read 120–180 Pa).

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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), while standard screw compressor filters are only F5 class (98% @ 5 μm). Using a standard filter can cause dust buildup on the impeller, disrupt dynamic balance, and even lead to impeller wear and scrapping.

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

A: Replace in 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 damaged media or a hardened, deformed gasket.

Q4: Is the ATS11057 a genuine OEM part?

A: The ATS11057 is a genuine Ingersoll Rand part manufactured to Ingersoll Rand global technical standards and fits 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. Plan procurement in advance to avoid disruption to compressor operation.

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Related Parts

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