Ingersoll Rand 54672522 Air Filter Element | R30/R37 NG R-Series

Product Overview

54672522 is the inlet air filter element for Ingersoll Rand NG R-Series (Next Generation R-Series) 30–37 kW screw air compressors. It mounts inside the external air cleaner assembly, upstream of the airend inlet, and is the first filtration barrier protecting the oil separator, oil filter, and lubricant from dust, sand, and fibers.

One part number covers four models on the same platform: R30I, R30N, R37I, and R37N. Both 30 kW and 37 kW, and both fixed-speed (N) and variable-speed (I) configurations, share this element. No differentiation by power or drive type is required at purchase.

Core Specifications

Technical Parameters

Filtration Performance

Flow and Restriction

Pressure drop and energy relationship: Rising inlet restriction reduces inlet pressure and density; the compressor must work harder to maintain set discharge pressure and flow, raising specific power. Based on 0.7 MPa discharge and 101.3 kPa atmospheric pressure, theoretical compression ratio calculations show:

Engineering implication: As the element loads from new to heavily clogged (0 → 6 kPa), compressor energy consumption rises by approximately 6%. R-Series units commonly run over 6,000 hours per year; the added electricity cost far exceeds the price of an element. This is the engineering basis for the OEM pressure-drop alarm.

Construction and Installation

Procurement note: When cross-referencing replacements, verify all three dimensions: OD 194 mm, ID 114 mm, overall height 399 mm. This element uses a radial seal; the seal ring sits on the outer circumference of the element end and must be pushed fully home with uniform compression.

Materials

Operating Tolerance

Service Life and Maintenance

Standards

Standard Maintenance and Installation Steps

One person, approximately 20 minutes.

1. Shut down, depressurize, lockout/tagout. Disconnect and lock out main power. Wait until the controller shows system pressure at 0 bar. Criterion: gauge at zero, no residual air flow noise.

2. Open the air cleaner housing. The air cleaner is external, mounted on the R-Series enclosure. Release the end-cover clips or bolts. Criterion: clips not seized, cover not deformed.

3. Remove the old element and inspect it. Pull the old element straight out and observe dust distribution and surface condition. Criterion: uniform gray-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 — this drives dust into the inlet tract. Criterion: no loose dust on inner walls; in humid areas, also check for condensate at the housing base.

5. Check the breather filter. The breather filter (part number 39123111) shares the 2,000-hour interval. Inspect now: if clogged or heavily loaded, replace 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 end and push it in fully. Confirm the radial seal ring is uniformly compressed, with no trapped material or skewing. Criterion: element face flush with housing, even compression marks around the seal.

7. Reassemble, reset the timer, and verify. Refit the cover and tighten clips. 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 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 between the seal ring and housing — equivalent to running without a 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 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 them is motor power and displacement; the filter housing and element on the 30–37 kW platform are identical.

Can it be used on R45 or R55?
No. R45–R75 uses 54672530; R90–R110 uses 23429822. Filter housing dimensions differ across power platforms; cross-platform installation will not fit or 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, shorten to approximately 1,500 hours. Where site dust is persistently high, add a high-dust pre-filter kit (24737298 / 24737306) so that only the pre-filter is replaced when it loads, extending main element life.

What else should be replaced with the air filter?
Components on the same 2,000-hour service interval: oil filter 54672654, oil separator 54749247, and breather filter 39123111. These share the interval with the air filter; replace together to avoid staggered maintenance 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, 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. Blowing with compressed air only removes surface dust; deep fine particles remain. Blow pressure can also rupture media fibers or distort pleat spacing, creating invisible channels. Reusing a cleaned element is a "looks clean, actually failed" condition — the risk outweighs the benefit.

How do I know it needs replacing?
Four signals: (1) inlet vacuum gauge reading rises; (2) controller indicates service due; (3) after removal, media surface is fully covered with dust and original pleats are not visible; (4) discharge flow drops while energy consumption rises. Replace on any one signal.

Is it genuine? How to verify?
The 54672522 described here is an Ingersoll Rand OEM part number. Genuine parts carry Ingersoll Rand authenticity markings 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 Models

Reading the table

• All eight models above use this product 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 interchange is not possible. Air filter part numbers for other power ranges in the same series:

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

Related Parts

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

Recommended replacement: The air filter, oil filter, and oil separator share the 2,000-hour interval. Replace together to avoid staggered maintenance. For dusty sites, add the high-dust pre-filter kit first — pre-filter cost is far lower than the main element and replacement is faster.