Ingersoll Rand ATS11057 Air Filter Element | ATS Series Centrifugal Compressor

Product Overview

The ATS11057 air filter element is a genuine Ingersoll Rand inlet filter element engineered specifically for ATS series oil-free centrifugal compressors. Its micro-fiberglass media delivers 99.97% filtration efficiency at 2.0 μm, blocking dust and particulate matter from entering the compression chamber. This protects precision impellers and diffusers from wear and helps maintain ISO 8573-1 Class 0 oil-free air quality.

As an original accessory in the Ingersoll Rand CC (Centrifugal Compressor) product line, P266 product group, the ATS11057 is built to Ingersoll Rand global technical standards. It combines low initial pressure drop, high dust holding capacity, and long service life to reduce operating energy costs and maintenance 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-high efficiency, per EN 1822 / ISO 29463)
• Dust Holding Capacity: approx. 2.2 kg (at rated flow, terminal resistance)
• Beta Ratio β: β₂.₀ ≥ 3333

The micro-fiberglass media provides 99.97% efficiency for particles 2.0 μm and above, exceeding the F5 grade (98% @ 5 μm) typical of standard screw compressor air filters. This meets the stringent inlet 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 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%

According to Ingersoll Rand data, this inlet filter series offers a clean pressure drop 40% lower and dust holding capacity 89% higher than comparable competitors, 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)
• Pleats / Pleat Pitch: approx. 150–180 pleats, pitch approx. 6–8 mm
• Installation Interface: Flange or end-cap slot type, mates with inlet filter housing
• Sealing: Polyurethane (PU) foam gasket integrated into the media 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 end caps to media, high-temperature resistant, no debonding

Operating Conditions

• Operating Temperature: Continuous: -20°C to 80°C; maximum: 93°C (200°F)
• Relative Humidity: ≤95% RH, no condensation
• Collapse Pressure Resistance: Overall ≥ 3.0 kPa
• Features: Low initial pressure drop, high dust holding capacity, long replacement interval, zero-leak seal

Service Life and Maintenance

• 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 temperature

Standards

• ISO 5011: Inlet air filter performance testing for internal combustion engines and compressors (efficiency and dust holding capacity)
• ISO 16889: Hydraulic filter beta ratio determination
• ISO 29463 / EN 1822: High-efficiency air filter (HEPA and ULPA) 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 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: Turn off main power to the compressor, apply lockout/tagout (LOTO), and confirm the unit has fully stopped.
2. Open the inlet 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 walls and sealing surfaces with a clean cloth; ensure no dust, oil, or foreign matter remains.
5. Inspect the new element: Verify the part number ATS11057 and check the media for damage and the gasket for deformation.
6. Install the new element: Place it vertically into the center of the housing, ensuring the gasket seats evenly on the sealing surface without tilting.
7. Reassemble the housing: Refit the cover and tighten bolts or clamps evenly to ensure a gap-free seal.
8. Start up and leak-check: Run the compressor and listen for air leaks at the inlet filter; check that the differential pressure gauge returns to normal (initial pressure 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, 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 require much higher inlet air cleanliness than screw compressors. The ATS11057 uses H11 micro-fiberglass media (99.97% @ 2.0 μm), whereas standard screw compressor filters are typically F5 grade (98% @ 5 μm). Using a standard filter can lead to impeller fouling, imbalance, and even 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 alarm value of 750 Pa; ② the 8,000-hour or 12-month interval is reached; ③ visual inspection reveals media damage or gasket aging/deformation.

Q4: Is the ATS11057 a genuine original part?

A: Yes, the ATS11057 is a genuine Ingersoll Rand original accessory manufactured to Ingersoll Rand global technical standards and fits original Ingersoll Rand inlet 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. We recommend planning purchases in advance to avoid impacting compressor operation.

Related Parts

• 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 screw compressors
• A29504406 — Main filter element for oil-free screw compressors (H11 grade)
• A11516974 — Filter element for medium centrifugal compressors (panel type)
• A13368674 — Filter element for large centrifugal compressors (panel type)

Note: The technical data above is based on 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 the latest supply information.