Introduction
The Ingersoll Rand 47704435001 / 23570344 8,000-Hour Inlet Service Kit is a dedicated maintenance solution for the inlet system of compatible Ingersoll Rand industrial compressors.
The inlet system has a direct influence on how a rotary screw compressor responds to changing air demand. By regulating the amount of air admitted into the compression process, the inlet valve participates in the compressor's loading and unloading strategy and helps determine how the machine operates under different demand conditions.
The 23570344 reference is identified in Ingersoll Rand parts information as an 8K-hour inlet service kit. Application documentation associates it with larger HPKG and HK compressor configurations, including HPKG 120/140 fixed-speed and HK110 variable-speed equipment.
For maintenance teams, using a dedicated service kit at the appropriate interval provides a more organized approach to inlet-system maintenance. It allows critical service work to be incorporated into a planned compressor shutdown rather than waiting for inlet-control problems to affect production.
The 47704435001 / 23570344 references should be treated as the same product listing for this page, while final compatibility should always be confirmed against the exact compressor configuration.
Technical Specifications
| Specification | Details |
|---|
| Brand | Ingersoll Rand |
| Primary Part Number | 47704435001 |
| Corresponding Part Number | 23570344 |
| Product Type | 8,000-Hour Inlet Service Kit |
| Service Category | Scheduled Compressor Maintenance |
| Primary Function | Inlet-System Service |
| Service Interval | 8,000 Operating Hours |
| System Function | Compressor Intake-Air / Inlet Control |
| Associated Equipment | Ingersoll Rand Industrial Compressors |
| Reported Applications | HPKG 120, HPKG 140 Fixed Speed; HK110 Variable Speed |
| Maintenance Type | Preventive / Scheduled Service |
| Installation Area | Compressor Inlet System |
| Dimensions | Kit-specific; configuration-dependent |
| Weight | Approx. 33 lb / 15 kg, based on available product listing |
| Compatibility | Model- and serial-number dependent |
Recommended Companion Models
| Model | Product Name |
|---|
| 23570369 | Ingersoll Rand 8,000-Hour Inlet Service Kit – Fixed-Speed Modulation |
| 23531585 | Ingersoll Rand HPKG 120 Inlet Valve Service Kit |
| 23531593 | Ingersoll Rand HPKG 140 Inlet Valve Service Kit |
| 23531619 | Ingersoll Rand HK140 Variable-Speed Inlet Valve Service Kit |
Frequently Selected Alternatives
| Model | Product Name |
|---|
| 23467228 | Ingersoll Rand Inlet Valve Service Kit |
| 23570369 | Ingersoll Rand 8,000-Hour Inlet Service Kit |
| 23531577 | Ingersoll Rand MPCV Service Kit |
| 23551823 | Ingersoll Rand HSTCV Service Kit 180–198°F |
Technical FAQs
1. What is the primary function of the Ingersoll Rand 47704435001 / 23570344?
The product is an 8,000-hour inlet service kit designed to support scheduled maintenance of the inlet system on compatible Ingersoll Rand compressors. The 23570344 reference is specifically listed as a “KIT, SERVICE 8K HR INLET.”
2. What does the 8,000-hour service designation mean?
The designation indicates that the kit is intended for a major service interval associated with approximately 8,000 operating hours on applicable compressor configurations. The actual maintenance schedule should follow the specific compressor's service documentation.
3. How does the inlet valve affect compressor operation?
The inlet valve regulates the amount of ambient air entering the compression system. Its operation is closely related to compressor loading, unloading, capacity control, and overall response to changing air demand.
4. Which Ingersoll Rand compressors use the 23570344 kit?
Available parts information identifies 23570344 for specific larger compressor configurations, including HPKG 120 and HPKG 140 fixed-speed units and HK110 variable-speed applications.
5. Is 23570344 a complete inlet valve assembly?
No. It is identified as a service kit, specifically an 8,000-hour inlet service kit. It should not automatically be interpreted as a complete replacement inlet-valve assembly.
6. What symptoms can indicate inlet-valve service is required?
Potential symptoms include abnormal loading or unloading, unstable compressor response, reduced capacity, unusual operating pressure behavior, or control-related alarms. These symptoms should be diagnosed because pneumatic, electrical, and control components can produce similar behavior.
7. Can inlet-valve condition affect compressor energy efficiency?
Yes. The inlet system is part of the compressor's capacity-control strategy. A valve that does not respond correctly can cause inefficient loading behavior and may increase energy consumption under certain operating conditions.
8. Why is inlet maintenance included in major compressor servicing?
The inlet system operates repeatedly as the compressor changes operating states. Regular service helps address wear, contamination, sealing deterioration, and other issues that can gradually affect valve response.
9. What should be inspected before installing the service kit?
The inlet assembly should be checked for contamination, mechanical wear, damaged sealing surfaces, actuator condition, pneumatic connections, and unrestricted valve movement. The control system should also be checked if abnormal valve behavior has been reported.
10. What should be verified before ordering 47704435001 / 23570344?
The compressor model, serial number, inlet-valve configuration, operating mode, and applicable parts documentation should be verified. This is particularly important because Ingersoll Rand uses different inlet service kits for different compressor configurations.
