Ingersoll Rand 54672522 Air Filter for R30/R37 Screw Compressors

Product Overview

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

A key procurement advantage: 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. No differentiation by power or speed control is required at the point of purchase.

Core Specifications

Item	Value
Part Number	54672522
Description	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	194 mm OD × 114 mm ID × 399 mm overall height
Seal Type	Radial seal
Net Weight	Approx. 1.25 kg
Effective Filter Area	Approx. 3.0 m²
Filtration Rating	≤10 μm
Recommended Change Interval	2,000 hours or 3 months

Technical Parameters

Filtration Performance

Parameter	Value / Note
Filtration Rating	≤10 μm
Filtration Efficiency	≥99% for particles ≥5 μm
Filter Class	Not classified under EN 779 (HVAC filters). Air filter elements are characterized per ISO 5011 by efficiency, restriction, and dust holding capacity.
Dust Holding Capacity	Approx. 900 g

Flow and Restriction

Parameter	Value / Note
Rated Air Flow	Matched to NG R-Series 30–37 kW displacement; one element per compressor
Face Velocity	Approx. 0.036 m/s
Initial Pressure Drop	With a new element installed, inlet vacuum should stabilize below 0.05 bar (5 kPa)
Alarm / Final Restriction	Per compressor inlet vacuum gauge and controller alarm setpoint
Restriction vs. Energy	Every 1 kPa increase in inlet restriction raises compressor energy consumption by approximately 1%

Restriction and energy relationship — Rising inlet restriction lowers inlet pressure and air density; the compressor must work harder to maintain discharge pressure and flow, increasing specific power. Based on 0.7 MPa discharge pressure and 101.3 kPa atmospheric pressure:

Inlet Restriction	Compression Ratio	Relative Energy Increase
0 kPa (new element)	7.91	Baseline
2 kPa	8.07	+2.0%
4 kPa	8.24	+4.1%
6 kPa	8.41	+6.3%

Engineering implication: As the element loads from new to heavily restricted (0 → 6 kPa), compressor energy consumption climbs by roughly 6%. R-Series units commonly run 6,000+ hours per year — the added electricity cost far exceeds the price of an element. This is the engineering basis for the factory-set differential pressure alarm.

Dimensions and Installation

Parameter	Value / Note
Dimensions	194 mm OD × 114 mm ID × 399 mm overall height
Media Height	367 mm (approx. 32 mm total for end structures)
Construction	Pleated radial-seal cartridge, primary / outer element
Effective Filter Area	Approx. 3.0 m²
Pleat Count	Approx. 101
Pleat Spacing	Approx. 4.8 mm
Mounting Interface	Radial push-in, installed at outlet end of air cleaner assembly (54652565)
Seal Type	Radial seal

Procurement note: When cross-referencing replacements, verify all three dimensions — 194 mm OD, 114 mm ID, 399 mm overall height. This element uses a radial seal; the sealing ring sits on the outer circumference of the element end. Push fully into position and confirm even circumferential compression.

Materials of Construction

Parameter	Value / Note
Filter Media	Imported wood-pulp filter paper (industry-common US HV or Ahlstrom grades)
Media Weight	Approx. 130 g/m²
Inner / Outer Support	Galvanized steel perforated cage (inner core + outer guard)
End Caps	Metal end caps (galvanized steel) with polyurethane adhesive
Sealing Element	Radial seal ring (oil-resistant rubber)
Bonding	Polyurethane (PU) hot-melt adhesive

Operating Tolerance

Parameter	Value / Note
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 withstands compressor inlet alarm differential pressure without collapse
Special Functions	No flame-retardant, anti-static, or special coating noted for this part number

Service Life and Maintenance

Parameter	Value / Note
Service Life	2,000 hours or 3 months (whichever comes first)
High-Dust Environment	Reduce to approx. 1,500 hours, or fit high-dust pre-filter kit
Shelf Life	Approx. 2–3 years (unopened, dry, ventilated storage)

Applicable Standards

Item	Content
Product Standard	ISO 5011 (Inlet air cleaning equipment for internal combustion engines and compressors — performance testing), evaluating efficiency, restriction, and dust holding capacity
Commonly Cited Test Standards	ISO 2941 / 2942 / 2943 / 3723 / 3724 / 3968
Standard Applicability Note	The ISO 29xx / 37xx series are general test methods for hydraulic fluid power filter elements. If a supplier can only provide hydraulic filter standards, request ISO 5011 or the OEM specification sheet.

Standard Maintenance and Installation Steps

Single-person operation, 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 system pressure. Criterion: gauge reads 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 latches or bolts. Criterion: latches free of seizure, cover not deformed.

3. Remove the old element and inspect its condition — Pull the old element straight out and observe dust distribution and surface condition. Criterion: uniform grey-brown dust is normal; oily residue indicates oil carryover upstream and requires investigation.

4. Clean the housing interior — Wipe the inner walls and base with a dry, lint-free cloth. Do not blow compressed air into the housing (it drives dust into the intake tract). Criterion: no loose dust on inner walls; in humid regions, also check for condensate at the housing base.

5. Check the breather filter — The breather filter (part number 39123111) shares the same 2,000-hour interval as the air filter. Inspect it now: if clogged or heavily loaded, replace it at the same time. Criterion: media intact, no severe dust loading.

6. Install the new element and confirm the seal — Align 54672522 with the housing outlet and push in fully. Confirm the radial seal ring is evenly compressed around its circumference, with no trapped material or skewing. Criterion: element face flush with housing, uniform compression marks around the seal.

7. Reassemble, reset the timer, and verify — Refit the end cover and tighten the latches. Reset the air filter service timer on the controller. Start the compressor and run at idle for 5 minutes. Criterion: inlet vacuum stabilizes below 0.05 bar (5 kPa), indicating a good seal. If vacuum is high, check that the seal ring is properly seated.

Installation rule: Do not start the compressor until the element is fully seated and the seal ring is compressed. With a radial seal, if the element is not pushed fully home, air bypasses directly through the gap between seal and housing — equivalent to running with no element at all.

Frequently Asked Questions

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 air filter. R30, R37, R30IE, and R37IE also use this part number.

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

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

How often should it be replaced?
Standard conditions: 2,000 hours or 3 months, whichever comes first. In high-dust environments such as cement, quarry, or mining, reduce to approximately 1,500 hours. Where dust levels are persistently high, a high-dust pre-filter kit (24737298 / 24737306) can be fitted so that only the pre-filter is replaced when loaded, extending main element life.

What else should be replaced with the air filter?
Components on the same 2,000-hour interval: oil filter 54672654, oil separator 54749247, and breather filter 39123111. These share the same service interval as the air filter. Replace them together to avoid staggered maintenance and repeated downtime.

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

What 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 removes only surface dust; deep fine particles remain. Blow pressure can also fracture media fibers or deform pleat spacing, creating invisible channels. Reusing a cleaned element is a "looks clean, actually failed" condition with more risk than benefit.

How do I know it needs replacing?
Four signals: (1) rising inlet vacuum gauge reading; (2) controller service-due alarm; (3) media surface completely covered with dust after removal, with original pleats no longer visible; (4) reduced discharge flow with increased energy consumption. Any one signal warrants replacement.

Is it a genuine part? How to verify?
The 54672522 described here is an Ingersoll Rand OEM part number. Genuine parts carry Ingersoll Rand anti-counterfeit identification and warranty. Always order by the part number itself — the part number is the only unambiguous identifier. Do not order based solely on "fits R30/R37" or visual similarity.

Compatible Machine Models

No.	Model	Power	Speed Control
1	R30I	30 kW	Variable speed (VSD), with dryer
2	R30N	30 kW	Fixed speed
3	R37I	37 kW	Variable speed (VSD), with dryer
4	R37N	37 kW	Fixed speed
5	R30	30 kW	—
6	R37	37 kW	—
7	R30IE	30 kW	Variable speed
8	R37IE	37 kW	Variable speed

Reading the table:

• All eight models above use the product on this page, belonging to the NG R-Series 30–37 kW platform. Fixed vs. variable speed and dryer configuration do not affect air filter selection.
• Not interchangeable across power platforms. Air filter part numbers for other power ranges in the same series:

Power Platform	Air Filter Part Number
R45–R75 (45–75 kW)	54672530
R90–R110 (90–110 kW)	23429822

• If the nameplate model of your compressor is not listed above, provide a photo of the machine nameplate and the full model number. We will cross-reference by part number before you order.

Related Components

In the intake and lubrication system of the R-Series 30–37 kW platform, the following components share the same service interval as the air filter (part numbers from the R30I/R30N/R37I/R37N parts manual):

Component	Part Number	Function	Inspection Point
Air Cleaner Assembly	54652565	Housing that holds and secures the air filter element	Check latches, sealing faces, and outlet end for deformation
Oil Filter	54672654	Removes wear debris and sludge from lubricant; protects bearings and rotors	Replace with air filter; check sealing face for leaks after change
Oil Separator	54749247	Separates oil mist from compressed air and returns oil; controls oil carryover	Check return line for blockage during replacement
Breather Filter	39123111	Balances pressure in the separator tank; prevents external dust entering the oil circuit	Inspect with air filter; replace if clogged
Lubricant (Ultra Coolant)	38459582	Standard coolant for R-Series screw compressors; lubricates and seals	Test oil per compressor requirements; avoid mixing with other brands
2,000-Hour Service Kit	24730897	Service kit for fixed and variable speed	Supplies all same-interval wear parts in one order, reducing downtime
4,000-Hour Service Kit	24730939 (fixed) / 24766123 (variable)	Major service kit	Schedule by compressor running hours
High-Dust Pre-Filter Kit	24737298 / 24737306	Additional pre-filter layer for high-dust sites	Replace only the pre-filter when loaded, extending main element life

Recommended replacement: Air filter, oil filter, and oil separator share the 2,000-hour interval. Replace them together to avoid staggered maintenance. On dusty sites, fit the high-dust pre-filter kit first — the pre-filter costs far less than the main element and is faster to change.

For export orders, we supply by part number with batch traceability and export packing. Request a quotation or datasheet for your required quantity.