Introduction
The Ingersoll Rand 47553881001 / 24752271 Intake Valve Service Kit listing combines two related compressor-control service references.
47553881001 is cataloged as an Intake Valve Service Kit 8K (with modification) for the R90–160, IR90–160, and IE R90–160 compressor family. It appears in the same R90–160 spare-parts group as other intake-valve, gearbox, hose, temperature-control, and preventive-maintenance kits.
The second reference, 24752271, is identified as “KIT, SERVICE - BLOWDOWN & MODULATION BLOCKS.” Supplier and parts listings give an application range of R55–160 kW, while separate listings specifically identify the kit for R90–160 compressors.
The intake valve is a fundamental part of a rotary screw compressor's air-management system. It regulates the flow of atmospheric air into the airend and changes position according to the compressor's operating requirements.
The modulation system works alongside the intake system to regulate compressor capacity. Rather than operating only in a simple fully open or fully closed state, the control system can use pneumatic modulation to respond to changing compressed-air demand.
The blowdown function performs a complementary role during unloading and other operating transitions. It helps manage pressure within the compressor system so that the machine can transition to the intended operating state.
Because these functions are interconnected, a control fault may appear to originate from the intake valve even when the actual problem is located in a modulation or blowdown component. Pneumatic leakage, restricted passages, sticking valves, damaged seals, or incorrect control signals can all influence compressor response.
For this reason, service work should normally include inspection of the complete pneumatic control path. The intake valve, actuator, modulation block, blowdown block, solenoids, tubing, fittings, and sealing surfaces should be evaluated according to the applicable maintenance procedure.
The 8K designation of 47553881001 identifies its service classification. It should not be interpreted as a universal replacement interval independent of compressor configuration; the applicable Ingersoll Rand maintenance schedule and equipment documentation should determine the actual service requirement.
The R90–160 parts family contains another closely related intake-valve reference, 47553880001, which is separately cataloged as an 8K intake valve service kit. The modified designation of 47553881001 makes exact part-number verification important before substitution.
The 24752271 reference should likewise be matched to the correct blowdown/modulation configuration. Current listings consistently identify it as a service kit for these control blocks, but the precise component contents should be confirmed against the compressor's applicable parts documentation.
One current supplier listing gives 24752271 a weight of 5.05 lb, or approximately 2.29 kg. This is a supplier-listed product weight and should not be treated as a certified engineering specification for the combined product listing.
Exact dimensions for the complete 47553881001 / 24752271 service listing were not reliably established from available technical documentation. Therefore, unsupported dimensional values are not provided.
The supplied pair is treated as one product listing as requested. Public records independently establish 47553881001 as the modified 8K intake-valve service kit and 24752271 as the blowdown and modulation block service kit.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Ingersoll Rand |
| Primary Part Number | 47553881001 |
| Associated Part Number | 24752271 |
| Product Type | Intake Valve Service Kit / Blowdown & Modulation Block Service Kit |
| Primary Service Reference | Intake Valve Service Kit 8K, with modification |
| Secondary Service Reference | Service Kit – Blowdown & Modulation Blocks |
| Documented Application for 47553881001 | R90–160, IR90–160, IE R90–160 |
| Documented Application for 24752271 | R55–160 kW; also listed for R90–160 |
| Primary Function | Intake-Air and Pneumatic Control Service |
| Service Classification | 8K for 47553881001 |
| Control Type | Pneumatic |
| Operating Pressure | Not reliably verified |
| Control Pressure | Not reliably verified |
| Port Size | Not reliably verified |
| Seal Material | Not reliably verified |
| Block Material | Not reliably verified |
| Complete Kit Dimensions | Not reliably verified; configuration-specific |
| Complete Kit Weight | Not reliably verified |
| Listed Weight for 24752271 | Approx. 5.05 lb / 2.29 kg |
| Compatibility | Model-, configuration-, and serial-number dependent |
The application and service classifications are supported by the available parts listings. The 5.05 lb value applies specifically to a supplier listing for 24752271 and is not a verified engineering weight for the complete paired listing.
Recommended Companion Models
| Model | Product Name |
|---|---|
| 47553880001 | 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 are listed within the same broader R90–160 service-parts family and cover intake-valve, temperature-control, gearbox, and hose maintenance. They are companion maintenance references rather than automatic replacements for 47553881001.
Frequently Selected Alternatives
| Model | Product Name |
|---|---|
| 23531627 | Ingersoll Rand Service Blowdown Block Kit, VVF18ENO |
| 23531635 | Ingersoll Rand Service Modulation Block Kit, PVVF18ENO |
| 23467244 | Ingersoll Rand Service Solenoid Kit, VVF18ENO/PVVF18ENO |
| 23467251 | Ingersoll Rand Service Actuator Cylinder Kit, HAKG/HPKG |
