Introduction
The Ingersoll Rand 47704435001 / 47690563001 Thermal Valve Rebuild Kit is a specialized maintenance solution for servicing the thermal valve assembly in compatible rotary screw compressor systems.
Thermal control plays a fundamental role in an oil-flooded compressor. Compressor lubricant is responsible not only for reducing friction but also for carrying heat away from the compression process and helping maintain effective sealing. The thermal valve regulates lubricant circulation according to temperature, helping the compressor reach and maintain an appropriate operating range.
The 47690563001 is identified as a Thermal Valve 180–198°F Rebuild Kit and is associated with RS45–75i/N compressor configurations. Available product information also identifies it as a seven-piece kit.
For maintenance teams, a dedicated rebuild kit offers a focused approach to thermal-valve service. When the valve body remains in good condition, replacing its service components can restore reliable temperature control without unnecessarily replacing the entire valve assembly.
Technical Specifications
| Specification | Details |
|---|
| Brand | Ingersoll Rand |
| Primary Part Number | 47704435001 |
| Corresponding Part Number | 47690563001 |
| Product Type | Thermal Valve Rebuild Kit |
| Valve Function | Compressor Lubricant Temperature Control |
| Thermal Range | 180–198°F |
| Kit Configuration | 7-Piece Rebuild Kit |
| Associated Compressor Range | RS45–75i/N |
| Application | Rotary Screw Air Compressors |
| Installation Area | Thermal / Lubrication Circuit |
| Maintenance Type | Thermal Valve Rebuild |
| Dimensions | Kit-specific; verify against the applicable supplied configuration |
| Weight | Approx. 5.05 kg |
| Compatibility | Model- and serial-number dependent |
The listed 5.05 kg weight is reported for 47690563001 by a product listing; physical dimensions are configuration-dependent and should be verified against the supplied kit.
Recommended Companion Models
| Model | Product Name |
|---|
| 24900433 | Ingersoll Rand Oil Filter Element |
| 23708423 | Ingersoll Rand Air/Oil Separator Element |
| 47557738001 | Ingersoll Rand Air Filter Element |
| 47569978001 | Ingersoll Rand Pad Pre-Filter |
Frequently Selected Alternatives
| Model | Product Name |
|---|
| 47690564001 | Ingersoll Rand Thermal Valve 185–203°F Rebuild Kit |
| 47690337001 | Ingersoll Rand Thermal Valve 180°F Rebuild Kit |
| 47693622001 | Ingersoll Rand Thermal Valve Rebuild Kit |
| 47695714001 | Ingersoll Rand Thermal Valve 180–195°F Service Kit |
Technical FAQs
1. What is the primary function of the Ingersoll Rand 47704435001 / 47690563001?
The product is a thermal valve rebuild kit designed to service the thermal valve in compatible Ingersoll Rand rotary screw compressors. It provides replacement components for restoring the valve's temperature-control function.
2. What does the 180–198°F specification mean?
The 180–198°F designation describes the thermal operating range associated with this rebuild-kit configuration. The thermal valve uses temperature-responsive control to regulate lubricant flow through the compressor's cooling circuit.
3. Why is lubricant temperature important in a rotary screw compressor?
Lubricant provides cooling, sealing, and lubrication during compression. Maintaining the lubricant within the intended temperature range helps preserve appropriate viscosity and supports stable compressor operation.
4. What can happen if the thermal valve fails to regulate lubricant temperature correctly?
A malfunctioning valve can cause lubricant temperature to remain outside the intended operating range. Depending on the failure mode, this may contribute to inadequate cooling, excessive operating temperature, or unsuitable lubrication conditions.
5. Can the thermal valve be rebuilt instead of replacing the complete valve?
Yes, when the main valve assembly remains serviceable, a rebuild kit can provide a practical alternative to complete valve replacement. The valve body and sealing surfaces should be inspected before deciding whether rebuilding is appropriate.
6. Which compressor configurations are associated with 47690563001?
Available parts information identifies 47690563001 as a thermal valve rebuild kit for RS45–75i/N configurations. The exact compressor model and serial number should still be verified before installation.
7. What type of maintenance issue can indicate thermal valve deterioration?
Abnormal lubricant temperature, unusual temperature fluctuations, or compressor temperature-related alarms may indicate a problem within the thermal-control circuit. Diagnosis should also consider the cooler, lubricant condition, sensors, and other related components.
8. Does the thermal valve directly control compressor discharge pressure?
No. Its primary role is temperature-dependent lubricant-flow control. Compressor discharge pressure is managed through the compressor's pressure and capacity-control systems rather than by the thermal valve itself.
9. What should be inspected before installing the rebuild kit?
The existing thermal valve should be checked for corrosion, scoring, damaged sealing surfaces, abnormal wear, and restricted movement. If the valve body or critical surfaces are damaged, complete assembly replacement may be more appropriate.
10. What should be verified before ordering 47704435001 / 47690563001?
The compressor model, serial number, existing thermal-valve configuration, and current parts documentation should be checked. The two numbers should be treated as the same product reference for this listing, while final compatibility should be confirmed against the installed compressor.
