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

Product Overview

ATS11057 is a genuine Ingersoll Rand air filter element for the intake filtration system of ATS series oil-free centrifugal compressors. Built with H11-grade micro-fiberglass media, it delivers 99.97% filtration efficiency at 2.0 μm, blocking dust and particulate matter from entering the core compression chamber to protect precision impellers and diffusers from wear and to support ISO 8573-1 Class 0 oil-free air quality.

As an OEM part of the Ingersoll Rand CC (Centrifugal Compressor) product line, P266 product group, ATS11057 is manufactured to Ingersoll Rand global technical standards. It combines low initial pressure drop, high dust holding capacity and long service life — helping operators reduce energy consumption and unplanned downtime.

Key Specifications

• Part Number: ATS11057
• Brand: Ingersoll Rand
• Component: Air filter element
• Product Line: CC (Centrifugal Compressor), P266 product group
• Compatible Machines: ATS series oil-free centrifugal compressors, 110 kW class
• Unit of Measure: EA
• Availability: Normally supplied, long-lead-time order item

Filtration Performance

• Filtration rating: 2.0 μm
• 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 and terminal resistance
• Beta ratio: β₂.₀ ≥ 3333

The micro-fiberglass media performs well above standard rotary-screw compressor intake filters (F5 class, 98% @ 5 μm), meeting the stricter intake cleanliness requirements of centrifugal compressors.

Flow, Pressure Drop and Dimensions

• Rated air flow: approx. 17–32 Nm³/min (110 kW class centrifugal units)
• Initial pressure drop: approx. 120–180 Pa at rated flow, clean condition
• Operating differential range: 180–600 Pa
• Alarm / terminal resistance: alarm at 750 Pa; terminal resistance 1000 Pa (replace immediately)
• Energy impact: every 100 Pa of inlet pressure loss adds approx. 0.35% to compressor shaft power
• Dimensions: approx. φ350 × φ180 × 320 mm (OD × ID × height)
• Effective filtration area: approx. 8–10 m² (pleated media)
• Pleats: approx. 150–180 pleats, pleat spacing approx. 6–8 mm
• Installation interface: flange / end-cap groove type, mating with the intake filter housing
• Sealing: polyurethane (PU) foam gasket integrated into the end frame for a seamless, zero-leak fit

Materials and Operating Conditions

• Media: micro-fiberglass, approx. 120–150 g/m²
• Support: inner galvanized metal screen plus outer protective mesh to prevent media collapse
• End caps: polystyrene frame — lightweight, corrosion-resistant, incinerable
• Seal: one-piece polyurethane foam gasket
• Bonding: polyurethane adhesive, heat-resistant, no delamination
• Operating temperature: -20°C to 80°C continuous; max 93°C (200°F)
• Relative humidity: ≤95% RH, no condensation
• Collapse resistance: ≥3.0 kPa overall differential pressure
• Service life: approx. 8000 hours (about 1 year) under standard conditions; 4000–6000 hours in high-dust environments
• Shelf life: 36 months in original sealed packaging, dry, ambient storage

Standards Referenced

• ISO 5011 — intake filter performance testing (efficiency and dust capacity)
• ISO 16889 — determination of filter beta ratio
• ISO 29463 / EN 1822 — classification and testing of high-efficiency air filters
• GB/T 14295 — air filters
• GB/T 6165 — air filter performance test methods (efficiency and resistance)

Maintenance and Installation

Replacement Interval

• 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 the compressor; apply lockout/tagout (LOTO) and confirm the unit has fully stopped.
2. Open the intake filter housing: release the clamps or bolts and remove the cover.
3. Remove the old element vertically and check whether the gasket has remained in the housing groove.
4. Clean the housing interior and sealing surface — no dust, oil or foreign matter.
5. Inspect the new element: verify part number ATS11057, check media integrity and gasket condition.
6. Install the new element vertically in the housing center, ensuring the gasket seats evenly without skewing.
7. Refit the cover and tighten bolts or clamps evenly for a gap-free seal.
8. Start up and leak-check: listen for air leakage, confirm the differential pressure gauge returns to the normal range (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 match it precisely.

Q2: How is ATS11057 different from a standard screw compressor intake filter?
A: Centrifugal compressors demand far 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 a standard filter can lead to impeller fouling, loss of dynamic balance and even impeller damage.

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

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

Q5: What is the lead time for ATS11057?
A: ATS11057 is a long-lead-time order item; standard lead time is approximately 110 days. Plan procurement in advance to avoid impact on 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, large ATN series centrifugal compressor (720 kW class)
• A29504376 — air filter element, oil-free screw compressor pre-filter
• 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: 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 OEM parts diagram and confirm current supply. Request a quotation or datasheet for volume and export orders.