Introduction
The Ingersoll Rand 47553880001 / 24752271 Intake Valve Service Kit listing combines two closely related compressor-control service references.
47553880001 is cataloged as an 8K Intake Valve Service Kit for R90–160, IR90–160, and IE R90–160 compressors. It belongs to a broader R90–160 service-parts family that includes gearbox, hose, temperature-control, and preventive-maintenance kits.
24752271 has a more specific control-system role. Multiple parts listings identify it as “KIT, SERVICE - BLOWDOWN & MODULATION BLOCKS,” with the principal application described as R55–160 kW and other current listings identifying the R90–160 range.
The intake valve regulates the amount of atmospheric air admitted to the compressor airend. Its position changes according to the compressor's operating requirements and control strategy. Correct movement and sealing are therefore important for stable capacity control.
The modulation system works alongside the intake valve. Rather than simply opening or closing the compressor inlet, modulation control allows the compressor to respond progressively to changing compressed-air demand.
The blowdown system has a different but complementary role. During unloading or other defined operating transitions, it helps manage pressure within the compressor system so that the machine can transition safely and correctly.
Because these functions are interconnected, problems in one part of the control system can produce symptoms that resemble faults in another component. A sticking intake valve, leaking control line, defective solenoid, or malfunctioning modulation block can all contribute to abnormal load/unload behavior.
The 24752271 service kit is particularly relevant when the blowdown or modulation block requires internal service rather than complete replacement. Trade documentation indicates that kits sold under this number can include sealing components such as gaskets, seals, rings, and plugs.
The exact contents should nevertheless be verified against the applicable Ingersoll Rand parts documentation because aftermarket and OEM descriptions can differ in how individual components are grouped.
47553880001 should likewise be distinguished from the nearby 47553881001 reference, which is separately cataloged as another 8K intake-valve service kit for the R90–160 family. The existence of multiple closely related part numbers makes compressor configuration and serial-number verification essential.
During maintenance, the technician should inspect the intake valve, actuator, modulation block, blowdown block, solenoids, control tubing, fittings, and sealing interfaces. Pneumatic leakage should be investigated because even relatively small leaks can affect actuator response.
The control system should also be tested after service. Valve movement should correspond to the intended control signal, and the compressor should transition correctly between loaded, modulated, unloaded, and shutdown conditions as applicable to its control architecture.
Exact internal contents of 47553880001 were not fully verified from public documentation. Similarly, the complete internal bill of materials for 24752271 was not independently confirmed from an official Ingersoll Rand parts list.
The supplied pair is therefore treated as one product listing while maintaining the independently documented roles of each number: 47553880001 as the 8K intake-valve service kit and 24752271 as the blowdown/modulation block service kit.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Ingersoll Rand |
| Primary Part Number | 47553880001 |
| Associated Part Number | 24752271 |
| Product Type | Intake Valve Service Kit / Blowdown & Modulation Block Service Kit |
| Primary Service Reference | Intake Valve Service Kit 8K |
| Secondary Service Reference | Service Kit – Blowdown & Modulation Blocks |
| Documented Application for 47553880001 | R90–160, IR90–160, IE R90–160 |
| Documented Application for 24752271 | R55–160 kW; also listed for R90–160 |
| Primary Function | Intake-Air and Compressor Control Service |
| Valve System | Intake, modulation, and blowdown control |
| Service Classification | 8K for 47553880001 |
| Seal Components | Included in some 24752271 kit descriptions; exact OEM contents to be verified |
| Pressure Rating | Not reliably verified |
| Control Pressure | Not reliably verified |
| Port Size | Not reliably verified |
| Material Specification | Not reliably verified |
| Complete Kit Dimensions | Not reliably verified |
| Complete Kit Weight | Not reliably verified |
| Compatibility | Model-, configuration-, and serial-number dependent |
The application and service classifications are supported by available parts catalogs and current component listings. Exact engineering dimensions, pressure specifications, and complete packaged weight were not reliably verified and are therefore not fabricated.
Recommended Companion Models
| Model | Product Name |
|---|---|
| 47553881001 | Ingersoll Rand Intake Valve Service Kit 8K, R90–160 |
| 47552954001 | Ingersoll Rand Temperature Control Valve Maintenance Kit, R90–160 |
| 47553882001 | Ingersoll Rand Gearbox Maintenance Kit, R90–160I |
| 47553886001 | Ingersoll Rand Air-Cooled Hose Maintenance Kit, R90–160I |
These references belong to the broader R90–160 service-parts family and address intake-valve, temperature-control, gearbox, or hose maintenance. They are companion service items rather than automatic replacements for 47553880001.
Frequently Selected Alternatives
| Model | Product Name |
|---|---|
| 47553887001 | Ingersoll Rand Air-Cooled Hose Maintenance Kit, R90–160N |
| 47553888001 | Ingersoll Rand Air-Cooled Hose Maintenance Kit, R90–160IE |
| 47553889001 | Ingersoll Rand Air-Cooled Hose Maintenance Kit, R90–160N/NE |
| 47553890001 | Ingersoll Rand Water-Cooled Hose Maintenance Kit, R90–160I |
