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

Product Overview

ATS11057 is a genuine Ingersoll Rand air intake filter element engineered specifically for ATS series oil-free centrifugal compressors in the 110 kW power range. Built with H11-grade micro-fiberglass media, it delivers 99.97% filtration efficiency at 2.0 μm, blocking dust and particulate matter before it reaches the precision impeller and diffuser. This protection helps maintain ISO 8573-1 Class 0 oil-free air quality and extends the service life of critical compression components.

As an OEM part under the Ingersoll Rand CC (Centrifugal Compressor) product line, group P266, 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 minimize unplanned downtime.

Key Specifications

• Part Number: ATS11057
• Brand: Ingersoll Rand
• Component Type: Air Filter Element
• Product Line: CC (Centrifugal Compressor)
• Product Group: P266
• Compatible Models: ATS series oil-free centrifugal compressors (110 kW class)
• Unit of Measure: EA
• Supply Status: 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 airflow, terminal resistance)
• Beta Ratio (β): β₂.₀ ≥ 3333

The micro-fiberglass media captures 99.97% of particles at 2.0 μm and above — significantly outperforming standard rotary-screw compressor filters (F5 class, 98% @ 5 μm) — meeting the stringent intake air 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 condition, rated flow)
• Operating Differential Pressure 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 inlet pressure loss raises compressor shaft power by approx. 0.35%

Ingersoll Rand data indicates this intake filter series achieves up to 40% lower clean pressure drop and 89% higher dust holding capacity compared with comparable aftermarket filters, 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 area)
• Pleat Count / Pitch: Approx. 150–180 pleats, pitch approx. 6–8 mm
• Mounting Interface: Flange or end-cap groove type, mates with intake filter housing
• Sealing: Polyurethane (PU) foam gasket integrated into the end frame for seamless, zero-leak fit

Construction Materials

• Media: Micro-fiberglass
• Media Weight: Approx. 120–150 g/m²
• Support: Inner galvanized metal support mesh + outer protective mesh to prevent media collapse
• End Caps: Polystyrene frame — lightweight, corrosion-resistant, incinerable
• Seal: Polyurethane (PU) integrally foamed gasket, high elasticity, seamless fit
• Adhesive: Polyurethane bonding of end caps to media, high-temperature resistant, no delamination

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 differential
• 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 (approx. 1 year); 4,000–6,000 hours in high-dust environments
• Shelf Life: 36 months in original sealed packaging, stored in a dry environment at room temperature

Standards

• ISO 5011 — Inlet air filters for internal combustion engines and compressors: efficiency and dust holding capacity testing
• 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 8,000 hours or 12 months, whichever comes first
• High-dust conditions (mining, building materials, foundries): every 4,000–6,000 hours
• Replace immediately when differential pressure alarm triggers (≥750 Pa)

Installation Steps

1. Shut down and lock out: Turn off main power, apply lockout/tagout (LOTO), confirm the unit has fully stopped.
2. Open the intake filter housing: Release housing clamps or bolts and remove the cover.
3. Remove the old element: Pull the old ATS11057 element straight up; check for any gasket residue left in the housing groove.
4. Clean the housing interior: Wipe the inner walls and sealing surface with a clean cloth — no dust, oil, or foreign matter.
5. Inspect the new element: Verify part number ATS11057; check media for damage and gasket for deformation.
6. Install the new element: Insert vertically into the housing center, ensuring the gasket seats evenly on the sealing surface without tilting.
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 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 power range. 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 rotary-screw compressor air filter?
A: Centrifugal compressors require far higher intake air cleanliness than rotary-screw units. The ATS11057 uses H11-grade micro-fiberglass media (99.97% @ 2.0 μm), while standard screw compressor filters are typically F5 class (98% @ 5 μm). Using a standard filter can cause dust buildup on the impeller, disrupt dynamic balance, and potentially lead to impeller wear and scrapping.

Q3: How do I know when to replace the air filter element?
A: Replace when any of these occur: (1) operating differential pressure reaches the 750 Pa alarm value; (2) 8,000 hours or 12 months of service is reached; (3) visual inspection reveals media damage or gasket aging/deformation.

Q4: Is the ATS11057 a genuine OEM part?
A: Yes. The ATS11057 is a genuine Ingersoll Rand OEM part manufactured to Ingersoll Rand global technical standards, 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 your procurement in advance to avoid disruption to compressor operation.

Related Part Numbers

• ATN09504 — Air filter element for ATN series centrifugal compressors (95 kW class)
• ATN10504 — Air filter element for ATN series centrifugal compressors (105 kW class)
• ATN18504 — Air filter element for ATN series centrifugal compressors (185 kW class)
• ATN72018 — Air filter element for large ATN series centrifugal compressors (720 kW class)
• A29504376 — Pre-filter element for oil-free rotary-screw compressors
• A29504406 — Main filter element for oil-free rotary-screw compressors (H11 class)
• A11516974 — Panel-type filter element for medium centrifugal compressors
• A13368674 — Panel-type filter element for large centrifugal compressors

Note: The technical parameters above are 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 verify the original parts diagram and confirm current supply availability.