Ingersoll Rand 54672522 Air Filter Element | NG R30/R37 30–37 kW

Product Overview

54672522 is the intake air filter element for Ingersoll Rand NG R-Series (Next Generation R-Series) 30–37 kW screw air compressors. It is mounted inside the external air cleaner assembly, upstream of the airend inlet, and acts as the first filtration barrier of the compressed air system. Its condition directly affects the service life of the downstream oil separator, oil filter, and lubricant.

One part number covers four models on the same platform: R30I, R30N, R37I, and R37N. Both 30 kW and 37 kW ratings, and both fixed-speed (N) and variable-speed (I) configurations, share the same element. R30, R37, R30IE, and R37IE also use this part number. No differentiation by power rating or speed control is required at the point of purchase.

Key Specifications

• Part number: 54672522
• Product name: Element, Air Filter
• Brand: Ingersoll Rand
• Platform: NG R-Series 30–37 kW
• Compatible models: R30I, R30N, R37I, R37N (also R30, R37, R30IE, R37IE)
• Dimensions: OD 194 mm × ID 114 mm × overall height 399 mm
• Seal type: radial seal
• Net weight: approx. 1.25 kg
• Effective filtration area: approx. 3.0 m²
• Filtration rating: ≤10 μm
• Recommended replacement interval: 2,000 hours or 3 months

Technical Data

Filtration Performance

• Filtration rating: ≤10 μm
• Filtration efficiency: ≥99% for particles ≥5 μm
• Filter class: evaluated per ISO 5011 (filtration efficiency, intake restriction, dust holding capacity); the EN 779 ventilation filter classification does not apply
• Dust holding capacity: approx. 900 g

Flow and Pressure Drop

• Rated air flow: matched to the NG R-Series 30–37 kW platform displacement; one element per compressor
• Filtration face velocity: approx. 0.036 m/s
• Initial pressure drop: intake vacuum should remain below 0.05 bar (5 kPa) with a new element installed
• Alarm / final pressure drop: per the intake vacuum gauge reading and controller alarm setpoint
• Energy relationship: each 1 kPa increase in intake restriction raises compressor energy consumption by approximately 1%

As intake restriction rises, intake pressure and air density fall, and the compressor must work harder to maintain the set discharge pressure and flow. Based on a 0.7 MPa discharge pressure and 101.3 kPa atmospheric pressure, the theoretical compression ratio effect is:

• 0 kPa (new element): ratio 7.91, baseline
• 2 kPa: ratio 8.07, +2.0% energy
• 4 kPa: ratio 8.24, +4.1% energy
• 6 kPa: ratio 8.41, +6.3% energy

Over a typical 6,000+ annual operating hours, the added electricity cost from a clogged element far exceeds the price of the element itself. This is the engineering basis for the OEM pressure-drop alarm.

Dimensions and Installation

• Overall dimensions: OD 194 mm × ID 114 mm × overall height 399 mm
• Media height: 367 mm (approx. 32 mm combined end structures)
• Construction: pleated radial-seal cylindrical element, primary / outer element
• Effective filtration area: approx. 3.0 m²
• Pleat count: approx. 101
• Pleat spacing: approx. 4.8 mm
• Mounting interface: radial push-in, installed at the outlet end of air cleaner assembly 54652565
• Seal type: radial seal

Procurement note: When cross-referencing a replacement, verify all three dimensions: OD 194 mm, ID 114 mm, and overall height 399 mm. This element uses a radial seal located on the outer circumference of the end; it must be pushed fully home so the seal is evenly compressed around its circumference.

Materials

• Media: imported wood-pulp filter paper (industry-common grades such as HV or Ahlstrom)
• Media basis weight: approx. 130 g/m²
• Inner and outer support: galvanized steel perforated cage (inner cage + outer guard)
• End caps: metal end caps (galvanized steel) with polyurethane adhesive
• Seal: radial seal ring (oil-resistant rubber)
• Bonding: polyurethane (PU) hot-melt adhesive

Operating Conditions

• Operating temperature: −10 to +100 °C
• Relative humidity: ≤80% RH, no condensation
• Burst strength: media burst strength approx. 200–400 kPa (per ISO 2758)
• Collapse resistance: element must withstand the compressor intake alarm pressure differential without collapsing
• Special functions: no flame-retardant, anti-static, or special coating specifications are stated for this part number

Service Life and Maintenance

• Service life: 2,000 hours or 3 months, whichever comes first
• High-dust environments: shorten to approx. 1,500 hours, or fit a high-dust pre-filter kit
• Shelf life: approx. 2–3 years when unopened and stored in a dry, ventilated location

Standards

• Applicable product standard: ISO 5011 (inlet air cleaning equipment for internal combustion engines and compressors — performance testing), covering filtration efficiency, intake restriction, and dust holding capacity
• Commonly cited test standards: ISO 2941 / 2942 / 2943 / 3723 / 3724 / 3968
• Note: the ISO 29xx / 37xx series are general test methods for hydraulic filter elements. If a supplier can only provide hydraulic filter standards, request ISO 5011 data or the OEM specification sheet.

Installation and Maintenance Steps

One person, approximately 20 minutes.

1. Shut down, depressurize, lock out / tag out. Disconnect and lock out the main power. Wait until the controller shows 0 bar. Criterion: gauge at zero, no residual air flow noise.
2. Open the air cleaner housing. The air cleaner is externally mounted on the R-Series enclosure. Release the end-cover clips or bolts. Criterion: clips free of seizure, cover not deformed.
3. Remove the old element and inspect it. Pull the element straight out and check dust distribution and surface condition. Criterion: even grey-brown dust loading is normal; oily residue indicates oil carryover upstream and should be investigated.
4. Clean the housing interior. Wipe the inner wall and base with a dry, lint-free cloth. Do not blow compressed air into the housing, as this drives dust into the intake passage. Criterion: no loose dust on the inner wall; in humid locations, also check for condensate at the housing base.
5. Check the breather filter. Breather filter 39123111 shares the 2,000-hour interval. If it is clogged or heavily loaded, replace it at the same time. Criterion: media intact, no heavy dust loading.
6. Fit the new element and confirm the seal. Align 54672522 with the housing outlet end, push it fully home, and confirm the radial seal is evenly compressed with no trapped material or skew. Criterion: element face flush with the housing, even seal compression marks around the circumference.
7. Reassemble, reset the timer, and verify. Refit the cover and tighten the clips. Reset the air filter service timer on the controller. Start the compressor and run at idle for 5 minutes. Criterion: intake vacuum stable below 0.05 bar (5 kPa), indicating a good seal; if vacuum is high, check that the seal ring is seated correctly.

Installation rule: Do not start the compressor until the element is fully seated and the seal is compressed. With a radial seal, an element that is not pushed fully home allows air to bypass directly between the seal and the housing — equivalent to running with no filter.

FAQ

Which models use 54672522?
All four models on the NG R-Series 30–37 kW platform: R30I, R30N, R37I, R37N. Fixed-speed (N) and variable-speed (I) configurations share the same element. R30, R37, R30IE, and R37IE also use this part number.

Is the R30 filter the same as the R37?
Yes. 54672522 fits both R30 (30 kW) and R37 (37 kW). The difference between the two is motor power and displacement; the 30–37 kW platform uses the same air cleaner housing and element.

Can it be used on an R45 or R55?
No. R45–R75 uses 54672530, and R90–R110 uses 23429822. Filter housings differ by power platform, so cross-platform installation will not fit or seal.

How often should it be replaced?
2,000 hours or 3 months under standard conditions, whichever comes first. In high-dust environments such as cement, quarrying, or mining, shorten to approximately 1,500 hours. Where dust levels are consistently high, a high-dust pre-filter kit (24737298 / 24737306) allows the pre-filter layer to be replaced alone, extending main element life.

What else should be replaced at the same time?
Parts on the same 2,000-hour interval include oil filter 54672654, oil separator 54749247, and breather filter 39123111. Replacing them together avoids staggered maintenance intervals and repeated downtime.

Is there a service kit containing these parts?
Yes. 2,000-hour kit 24730897 (for both fixed and variable speed), 4,000-hour fixed-speed kit 24730939, and 4,000-hour variable-speed kit 24766123.

Which lubricant should be used?
Ingersoll Rand Ultra Coolant, part number 38459582, suitable for all R-Series screw compressors. Available in 5 L, 20 L, and 55-gallon sizes.

Can a dirty element be blown clean and reused?
Not recommended. This is a radial-seal pleated paper element designed for single use. Reverse blowing with compressed air only removes surface dust; fine particles embedded in the media cannot be removed, and the pressure can fracture fibers or distort pleat spacing, creating invisible channels. A cleaned element may look serviceable while actually being ineffective — the risk outweighs the benefit.

How do I know when to replace it?
Four signals: (1) rising intake vacuum gauge reading; (2) controller service-due alarm; (3) media surface fully covered with dust so the original pleats are no longer visible; (4) reduced discharge flow with increased energy consumption. Replace on any of these signals.

Is this a genuine part? How is it verified?
54672522 is the Ingersoll Rand OEM part number. Genuine parts carry Ingersoll Rand authenticity marking and warranty. Always order by the part number itself — the part number is the only unambiguous identifier. Do not order solely on the basis of "fits R30/R37" or visual similarity.

Compatible Models

• R30I — 30 kW, variable speed (VSD), with dryer
• R30N — 30 kW, fixed speed
• R37I — 37 kW, variable speed (VSD), with dryer
• R37N — 37 kW, fixed speed
• R30 — 30 kW
• R37 — 37 kW
• R30IE — 30 kW, variable speed
• R37IE — 37 kW, variable speed

All eight models above use this element and belong to the NG R-Series 30–37 kW platform. Fixed or variable speed, and whether a dryer is fitted, do not affect air filter selection.

Cross-platform interchangeability: elements are not interchangeable across power platforms. Air filter part numbers for other ratings in the series are:

• R45–R75 (45–75 kW): 54672530
• R90–R110 (90–110 kW): 23429822

If your compressor nameplate model is not listed above, provide a photo of the nameplate and the full model number, and we will confirm by part number before you order.

Related Parts

Parts in the intake and lubrication system of the R-Series 30–37 kW platform that share the same service interval (part numbers from the R30I/R30N/R37I/R37N parts manual):

• Air cleaner assembly 54652565 — housing that retains the air filter element; check clips, sealing faces, and outlet end for deformation
• Oil filter 54672654 — removes wear debris and sludge from lubricant, protecting bearings and rotors; replace together with the air filter and check the sealing face for leaks afterward
• Oil separator 54749247 — separates oil mist from compressed air and returns oil, controlling oil carryover; check the oil return line for blockage during replacement
• Breather filter 39123111 — balances pressure in the separator tank and prevents external dust from entering the oil circuit; inspect together with the air filter and replace if clogged
• Ultra Coolant 38459582 — standard coolant for R-Series screw compressors, providing both lubrication and sealing; test oil condition as required and avoid mixing with other brands
• 2,000-hour service kit 24730897 — for both fixed and variable speed; supplies all same-interval wear parts in one order to reduce downtime
• 4,000-hour service kits 24730939 (fixed speed) / 24766123 (variable speed) — major service kits; schedule by operating hours
• High-dust pre-filter kits 24737298 / 24737306 — additional pre-filter layer for high-dust sites; replace only the pre-filter when spent to extend main element life

Recommended grouping: the air filter, oil filter, and oil separator share the 2,000-hour interval and should be replaced together to avoid staggered maintenance and repeated downtime. At dusty sites, fit the high-dust pre-filter kit first — the pre-filter costs far less than the main element and is quicker to change.