Introduction
The Ingersoll Rand 47545136001 37952389 Thermostatic Valve Service Kit represents a temperature-control maintenance reference for compatible Ingersoll Rand compressor systems. The 47545136001 number is associated with a temperature-sensing valve maintenance kit, while 37952389 appears in parts catalog references as a thermostatic valve kit and thermal valve assembly.
Temperature management is fundamental to the reliable operation of an oil-injected rotary screw compressor. Compressor lubricant performs several important functions, including lubrication, sealing, cooling, and assisting the compression process. Maintaining the lubricant within its intended temperature range therefore contributes directly to equipment reliability.
A thermostatic valve helps manage this thermal balance. When lubricant temperature is relatively low, the valve can keep oil away from the cooler so the compressor can reach an appropriate operating temperature more efficiently. As lubricant temperature rises, the valve progressively changes the flow path so that more oil can pass through the cooler.
This operating principle makes the thermostatic valve particularly important during start-up, low-ambient operation, and normal load transitions. A valve that does not respond correctly can interfere with temperature stabilization and may contribute to operating conditions outside the intended range.
The 37952389 reference has a well-established presence in Ingersoll Rand parts information. One catalog identifies it as a “KIT, THERMOSTATIC VALVE,” while another parts listing describes the same number as a thermal valve assembly. A separate catalog also identifies 37952389 as the valve core. These descriptions indicate that the reference is closely associated with the thermostatic temperature-control assembly, although the exact supplied configuration should be confirmed before purchase.
The 47545136001 reference provides the broader maintenance context. It is associated with temperature-sensing valve maintenance, making it useful for planned service where the compressor's temperature-control components require inspection or renewal.
Thermal-control faults can have multiple causes. A defective thermostatic valve is only one possibility; restricted coolers, contaminated lubricant, incorrect oil level, poor airflow, sensor problems, and other system conditions can produce similar temperature symptoms. Effective troubleshooting should therefore evaluate the entire thermal-management system.
During service, technicians should inspect the valve body, sensing element, moving components, sealing surfaces, and associated oil passages according to the applicable service procedure. Any contamination or deposits should be addressed using approved maintenance practices rather than assuming that valve replacement alone will correct the problem.
The distinction between a maintenance-kit reference and an individual valve reference is also important for purchasing. 47545136001 and 37952389 should not automatically be treated as duplicate part numbers. They represent different levels of parts identification, and the current compressor-specific bill of materials should determine which reference is required.
There are numerous other Ingersoll Rand thermostatic-valve references, including 37952298, 37952314, 37952397, 37952405, and 37952413. Their existence reinforces the importance of application-specific selection rather than choosing a valve based only on general appearance or function.
Some third-party suppliers also market 37952389 as an aftermarket replacement. Such listings can be useful for reference, but aftermarket status should not be confused with verified OEM supply. For critical compressor maintenance, procurement teams should confirm the source, specification, and compatibility before installation.
Exact valve dimensions, temperature-setting value, internal kit contents, pressure characteristics, package dimensions, and weight for the current 47545136001 / 37952389 configuration were not sufficiently verified from authoritative documentation. These values are therefore intentionally not estimated.
For industrial maintenance teams, using the correct thermostatic-valve reference helps preserve predictable lubricant-temperature control and supports stable compressor operation. Proper identification of 47545136001 and 37952389, combined with model and serial-number verification, provides a stronger basis for reliable maintenance and procurement decisions.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Ingersoll Rand |
| Maintenance Reference | 47545136001 |
| Valve Reference | 37952389 |
| Product Type | Thermostatic / Temperature-Control Valve Service Reference |
| 47545136001 Description | Temperature-Sensing Valve Maintenance Kit |
| 37952389 Catalog Description | Kit, Thermostatic Valve / Thermal Valve Assembly |
| Primary Function | Compressor lubricant temperature regulation |
| Operating Principle | Thermostatic control of lubricant flow through cooling circuit |
| Low-Temperature Function | Helps bypass cooler during warm-up |
| Higher-Temperature Function | Directs lubricant toward cooler for temperature control |
| Application | Compatible Ingersoll Rand compressor configurations; verify model and serial number |
| Temperature Setting | Application-specific; verify applicable parts documentation |
| Valve Dimensions | Application-specific; verify applicable parts documentation |
| Valve Material | Application-specific; verify current parts documentation |
| Internal Kit Contents | Verify current bill of materials |
| Kit Dimensions | Application-specific; verify applicable parts documentation |
| Weight | Packaging-specific; verify supplied product |
| Installation | Follow applicable Ingersoll Rand service documentation |
| Compatibility | Confirm compressor model, serial number, and current parts reference before ordering |
Catalog sources identify 37952389 as a thermostatic valve reference, while 47545136001 is associated with the temperature-sensing valve maintenance configuration.
Recommended Companion Models
| Model | Product Name |
| 47545141001 | 16,000-Hour Preventive Maintenance Kit |
| 47545136001 | Temperature-Sensing Valve Maintenance Kit |
| 47545143001 | Water Cooler Seal Maintenance Kit |
| 39911631 | Coolant Filter Element |
These references support broader compressor maintenance involving scheduled servicing, temperature control, water-cooling integrity, and coolant filtration. Final compatibility should be verified against the specific compressor configuration.
Frequently Selected Alternatives
| Model | Product Name |
| 37952397 | Thermostatic Valve |
| 37952405 | Thermostatic Valve Kit |
| 37952413 | Thermostatic Valve Kit |
| 39478193 | Thermostatic Valve |
