Kaeser Thermal Valve Kit Replacement – 404092.1

The Kaeser 404092.1 Thermostatic Valve Kit is an OEM maintenance kit designed for Kaeser rotary screw air compressors. It regulates the flow of compressor lubricant based on oil temperature, ensuring the compressor reaches its optimal operating temperature quickly and maintains stable cooling during operation. This helps improve lubrication, prevent overheating, and extend the life of critical compressor components.

Key Features

• Genuine/OEM Kaeser thermostatic valve maintenance kit
• Controls oil flow according to operating temperature
• Helps maintain correct oil temperature
• Improves compressor efficiency and reliability
• Reduces wear on bearings and air-end components
• Suitable for preventive maintenance and valve replacement

Benefits

• Faster warm-up after startup
• Stable operating temperature
• Better lubrication performance
• Lower risk of overheating
• Longer compressor service life
• Reduced maintenance costs

Typical Applications

Used in selected Kaeser rotary screw air compressors. Compatibility should always be verified using the compressor model and serial number before ordering.

Working Process

1. Cold Start: The thermostatic valve keeps oil circulating internally so the compressor warms up quickly.
2. Normal Operation: As oil temperature increases, the valve gradually opens.
3. Hot Oil: The valve directs oil through the oil cooler to maintain the correct operating temperature.
4. Temperature Control: The valve continuously adjusts oil flow to keep the compressor running efficiently under varying loads