Atlas Copco / Chicago Pneumatic Thermal Valve Replacement – PN: 2901109500
Genuine OEM Thermal Valve & Minimum Pressure Valve Kit
Keep your rotary screw air compressor operating at the proper temperature and pressure with the Atlas Copco / Chicago Pneumatic 2901109500 Thermal Valve & Minimum Pressure Valve Kit .
This is a genuine OEM (Original Equipment Manufacturer) part from Atlas Copco / Chicago Pneumatic , designed to restore proper operation of the compressor’s thermal valve and minimum pressure valve assemblies.
The thermal valve plays an important role in regulating compressor oil temperature by directing lubricant through the oil cooler as operating temperature increases. The minimum pressure valve helps maintain proper internal sump pressure during operation while preventing compressed air from flowing backward into the compressor when the unit shuts down.
🛠️ Why You’ll Want the Genuine OEM 2901109500 Kit
A worn or sticking thermal valve can contribute to high operating temperatures, overheating, and nuisance shutdowns , while a failing minimum pressure valve can affect internal pressure, oil circulation, and overall compressor performance.
Replacing these components with the correct OEM kit helps restore the compressor to the operating characteristics intended by the manufacturer.
Key Features
- Genuine Atlas Copco / Chicago Pneumatic OEM part
- Part Number: 2901109500
- Also referenced as 2901 1095 00
- OEM Thermal Valve + Minimum Pressure Valve (MPV) Kit
- Atlas Copco designation: THERM. & MPV Kit C40
- Helps maintain proper compressor oil temperature
- Helps maintain proper internal sump pressure
- Designed for select oil-injected rotary screw air compressors
- Manufactured to original factory specifications
Common Signs the Thermal or Minimum Pressure Valve May Need Service
- Compressor running hotter than normal
- High-temperature shutdowns
- Improper operating pressure
- Excessive oil carryover
- Air leaking backward through the compressor after shutdown
- Compressor performance changing as the machine reaches operating temperature
OEM Quality Matters
When servicing a critical internal component of your rotary screw compressor, proper fit and operation matter. PN 2901109500 is an OEM Atlas Copco / Chicago Pneumatic part , not an aftermarket substitute or OEM-equivalent replacement.
Using the genuine factory component helps ensure the correct dimensions, materials, temperature regulation, and pressure characteristics for compatible compressors.
⚠️ Please Verify Compatibility Before Ordering
Part 2901109500 is used on select Atlas Copco, Chicago Pneumatic, and related rotary screw compressor models. Compatibility can vary depending on the compressor model and serial number .
Not sure if this is the correct part for your compressor? Contact us with your compressor’s model and serial number , and our compressed air experts will be happy to help verify the correct replacement part before you order.
Need Help?
At Compressed Air Advisors , we specialize in compressed air equipment, maintenance parts, and air treatment. If you need help identifying the correct thermal valve, minimum pressure valve, maintenance kit, filter, separator, or other compressor part, give us a call.
Your compressed air partner.