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- Ingersoll Rand
- 47572174001 47552954001
- Service Kit Thermostatic Valve
- USA
- 180 × 120 × 80 mm
- 1.0 kg
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Product Overview
The Ingersoll Rand 47572174001 47552954001 Service Kit Thermostatic Valve is a maintenance kit for the temperature control valve assembly used in compatible rotary screw air compressors. The thermostatic valve regulates lubricant flow according to temperature conditions, helping the compressor reach its intended operating temperature and maintain suitable oil circulation during normal operation.
In an oil-injected screw compressor, lubricating oil performs several functions simultaneously. It reduces friction between moving components, helps seal the compression chambers, and removes heat generated during compression. The temperature control valve directs oil through the appropriate circulation path as the compressor warms up and operating conditions change.
During startup, the oil temperature is relatively low. The thermostatic valve controls the oil circulation path to help the compressor warm up appropriately rather than immediately sending all the oil through the cooling circuit. As the oil temperature rises, the valve changes its flow distribution to allow more oil to pass through the cooler when required.
The 47552954001 service kit is associated with temperature control valve maintenance for selected Ingersoll Rand R90–160 compressor configurations. It is intended for servicing the applicable valve assembly rather than automatically replacing the entire compressor cooling system. The exact kit contents and compatibility should be confirmed against the installed valve and compressor configuration.
A malfunctioning thermostatic valve can affect compressor temperature regulation in different ways. A valve that does not direct sufficient oil through the cooler may contribute to elevated operating temperatures. Conversely, a valve that sends excessive oil through the cooling circuit during warm-up may delay the compressor reaching its intended operating temperature.
For maintenance personnel, distinguishing a valve fault from a cooling-system problem is important. A restricted oil cooler, low oil level, incorrect lubricant, or abnormal ambient conditions can produce similar temperature symptoms. Inspecting the complete oil circulation and cooling arrangement helps establish whether the thermostatic valve requires servicing.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Ingersoll Rand |
| Model Reference | 47572174001 |
| Part Number | 47552954001 |
| Product Type | Service Kit Thermostatic Valve |
| Product Category | Rotary Screw Air Compressor Spare Part |
| Valve Function | Temperature-dependent oil flow regulation |
| Primary Purpose | Servicing the compressor temperature control valve |
| Associated Compressor Range | Selected R90–160 configurations |
| System Application | Compressor lubrication and cooling circuit |
| Controlled Medium | Compressor lubricating oil |
| Operating Principle | Temperature-responsive flow control |
| Service Purpose | Maintenance of the applicable thermostatic valve assembly |
| Dimensions | 180 × 120 × 80 mm |
| Weight | 1.0 kg |
Product Features
- Temperature control valve servicing: Supports maintenance of compatible compressor thermostatic valve assemblies.
- Oil circulation management: Helps restore the intended distribution of lubricant between the cooling and bypass paths.
- Warm-up control: Supports appropriate oil circulation during compressor startup.
- Operating temperature regulation: Helps maintain the intended temperature-control behavior when valve wear is responsible for abnormal operation.
- Cooling circuit coordination: Works with the compressor oil cooler and associated piping to regulate lubricant flow.
- Maintenance kit configuration: Provides a service-oriented replacement option for the applicable valve assembly.
- Compressor-specific identification: Uses part number 47552954001 to distinguish the kit from other temperature control components.
- Temperature fault investigation: Is relevant when valve operation is identified as a possible cause of abnormal compressor temperature.
- Scheduled service support: Can be incorporated into maintenance planning when the applicable valve requires inspection or repair.
- Configuration verification: Requires confirmation of the compressor model and installed valve assembly before replacement.
Working Principle
The thermostatic valve regulates the route taken by compressor oil according to its temperature. It helps coordinate oil circulation between the compressor and oil cooler so that the lubricant can perform its lubrication, sealing, and heat-removal functions under changing operating conditions.
Screw Air End → Oil Separation Circuit → Thermostatic Valve → Oil Cooler or Bypass Path → Oil Filter → Compressor Lubrication Circuit
When the compressor starts from a relatively cool condition, the thermostatic valve restricts or redirects flow through the cooling path according to its design. This helps the oil reach an appropriate operating temperature without unnecessary cooling during warm-up.
As the oil temperature rises, the temperature-responsive element changes the valve position. More oil can then be directed through the cooler, where heat is transferred to the surrounding cooling medium. The cooled oil returns through the lubrication circuit to the components requiring lubrication.
The valve’s response depends on its internal temperature-sensitive element and mechanical movement. If the element loses its intended response, or if the valve mechanism becomes contaminated or sticks, oil distribution may no longer follow the required temperature conditions.
A valve that remains too far toward the bypass position may limit oil flow through the cooler and contribute to high operating temperature. A valve that remains too far toward the cooling path can cause slower warm-up or excessive cooling under some operating conditions. The exact symptoms depend on the compressor design and the valve’s failure mode.
The 47552954001 service kit is intended to support maintenance of the applicable thermostatic valve assembly. Before fitting replacement components, technicians should inspect the valve body, sealing surfaces, oil passages, and temperature-responsive mechanism according to the service procedure. If the valve body is damaged or the cooling circuit is restricted, a repair kit alone may not correct the temperature problem.
After servicing, the compressor should be returned to operation under controlled conditions. Oil temperature, cooling response, leakage, and operating stability should be checked against the applicable equipment limits.
Role in an Ingersoll Rand Compressor Cooling System
The thermostatic valve is positioned within the compressor oil circulation circuit, where it regulates how lubricant moves through the cooler and bypass path. The 47552954001 service kit supports maintenance of this temperature-control function on compatible compressor configurations.
Oil Separation Circuit → Thermostatic Valve → Oil Cooler / Bypass Path → Oil Filter → Screw Air End
| System Component | Function |
|---|---|
| Ingersoll Rand 47552954001 | Services the applicable thermostatic valve assembly |
| Thermostatic Valve | Regulates oil flow according to temperature conditions |
| Temperature-Responsive Element | Changes valve position as the temperature changes |
| Oil Cooler | Removes heat from circulating compressor oil |
| Oil Filter | Removes contaminants from the lubricant |
| Oil Separation Circuit | Separates oil from compressed air and supports oil recovery |
| Compressor Oil Pump or Pressure Circuit | Circulates lubricant according to the compressor design |
| Rotary Screw Air End | Compresses incoming air and generates heat during operation |
| Oil Piping and Connections | Carry lubricant between the valve, cooler, filter, and air end |
| Temperature Sensors | Provide operating temperature information where fitted |
| Compressor Controller | Monitors available signals and coordinates operating modes |
| Cooling Fan or Water Circuit | Removes heat from the oil cooler according to the compressor configuration |
Industrial Applications
| Application | Typical Use |
|---|---|
| Manufacturing Plants | Maintaining oil temperature regulation in central compressor installations |
| Automotive Production | Supporting compressor cooling and lubrication in pneumatic utility systems |
| Metalworking Facilities | Maintaining thermostatic valve operation in compressors supplying machine tools |
| Packaging Lines | Supporting consistent compressor operating temperature during production |
| Plastics Processing | Servicing oil temperature control components in industrial compressed air systems |
| Industrial Assembly | Maintaining temperature-responsive oil circulation during scheduled compressor maintenance |
| Textile Manufacturing | Supporting compressor operation under sustained pneumatic demand |
| Industrial Utility Rooms | Addressing valve-related temperature regulation faults |
| Continuous-Operation Plants | Maintaining compressor cooling response during extended operating cycles |
| Compressor Overhauls | Servicing the temperature control valve when inspection identifies wear or sticking |
Installation and Maintenance
- Verify the part reference: Confirm 47572174001 and 47552954001 against the compressor identification, installed thermostatic valve, and applicable parts documentation.
- Review temperature symptoms: Record operating oil temperature, warm-up behavior, cooling response, and any temperature-related alarms before disassembly.
- Isolate the compressor: Stop the unit, disconnect the relevant electrical supply, and follow the site’s lockout/tagout procedure.
- Depressurize the system: Allow the compressor to reach a safe maintenance condition and release stored pressure according to the approved service procedure.
- Allow the oil to cool: Confirm that the lubricant and surrounding components have reached a safe temperature before opening the oil circuit.
- Document the original arrangement: Record the valve orientation, connected oil lines, seals, and associated fittings before removing the assembly.
- Inspect the valve body: Check the internal passages, seating surfaces, and sealing interfaces for contamination, wear, corrosion, or damage.
- Check the kit contents: Compare the supplied service components with the applicable parts list before beginning the repair.
- Install replacement components: Follow the specified procedure for component orientation, seal placement, lubrication, and tightening requirements.
- Inspect the cooling circuit: Check the oil cooler, bypass passages, piping, and relevant connections for restrictions or leakage that could affect temperature regulation.
- Test the compressor after servicing: Restore the equipment under controlled conditions and observe oil temperature, warm-up behavior, cooling response, and leakage.
- Record maintenance results: Document the installed kit reference, replaced components, original symptoms, operating temperatures, and post-repair observations.
Related Components
| Component | Function |
|---|---|
| Ingersoll Rand 47552954001 | Thermostatic valve service kit for compatible compressor configurations |
| Thermostatic Valve Assembly | Regulates oil circulation according to temperature |
| Temperature-Responsive Valve Element | Controls valve movement in response to temperature |
| Compressor Oil Cooler | Removes heat from circulating lubricant |
| Compressor Oil Filter | Filters contaminants from the lubrication circuit |
| Compressor Lubricating Oil | Lubricates internal components and carries away heat |
| Oil Return and Supply Lines | Carry lubricant through the compressor system |
| Oil Separator Element | Separates entrained oil from compressed air |
| Temperature Monitoring Devices | Measure operating temperature where fitted |
| Compressor Controller | Monitors available signals and coordinates operating conditions |
Recommended Related Models
| Model / Product Family | Product Type | Typical Application |
|---|---|---|
| Ingersoll Rand 47552954001 | Service Kit Thermostatic Valve | Servicing compatible temperature control valve assemblies |
| Ingersoll Rand 47553880001 | Intake Valve Service Kit | Servicing the intake valve on specified R90–160 compressor configurations |
| Ingersoll Rand 47553881001 | Intake Valve Service Kit, 8K | Intake valve maintenance for applicable R90–160 configurations |
| Ingersoll Rand 47553882001 | Gearbox Maintenance Kit | Maintaining compatible compressor gearbox assemblies |
| Ingersoll Rand 47553883001 | Gearbox Maintenance Package | Gearbox service for applicable compressor configurations |
| Ingersoll Rand R90–160 Compressor Series | Rotary Screw Air Compressor | Compressor applications requiring configuration-specific temperature control valve servicing |
| Ingersoll Rand Oil Cooler Assembly | Compressor Cooling Component | Removing heat from circulating compressor oil |
| Ingersoll Rand Oil Filter Element | Compressor Oil Filtration Component | Filtering lubricant before it returns to the lubrication circuit |
Key Advantages
- Supports maintenance of compatible compressor thermostatic valve assemblies.
- Helps restore temperature-responsive oil flow when the valve mechanism is the source of the fault.
- Supports the oil circulation path between the compressor and cooling circuit.
- Helps maintain the intended warm-up and cooling behavior.
- Provides a defined part reference for compressor service planning.
- Supports troubleshooting of valve-related temperature regulation problems.
Technical FAQs
What symptoms can indicate a faulty thermostatic valve?
Possible symptoms include unusually high oil temperature, slow warm-up, abnormal cooling response, or temperature fluctuations during operation. These symptoms can also result from a restricted oil cooler, incorrect oil level, unsuitable lubricant, or abnormal ambient conditions, so the complete cooling circuit should be inspected.
Is the 47552954001 service kit compatible with every R90–160 compressor?
No. The R90–160 range identifies the associated application family, but compatibility can vary with model configuration and production version. Verify the installed valve assembly and the applicable parts reference before ordering or installing the kit.
Why does the compressor need a thermostatic valve in its oil circuit?
The valve helps regulate how much oil passes through the cooling path as the lubricant warms up. This supports suitable operating temperature while allowing the oil to perform its lubrication, sealing, and heat-removal functions.
What should be checked if oil temperature remains high after valve servicing?
Inspect the oil cooler for restricted airflow or reduced heat transfer, check the oil level and lubricant condition, and examine the oil filter and connecting passages for restrictions. Also verify the valve assembly’s installation and operation before attributing the problem to the replacement kit.