Intake Unloader Valve 2906095800 for Atlas Copco Screw Air Compressor
High-quality Intake Unloader Valve 2906095800 designed for Atlas Copco oil-injected screw air compressors. Made with a durable cast alloy body for superior heat resistance, airtight performance, and long-lasting reliability under continuous industrial operation.
| Application |
Screw Air Compressor |
|---|---|
| Material |
Aluminum ,Stainless Steel |
The intake unloading valve (part number 2906095800) is a key component of Atlas Copco oil-injected screw air compressors, serving as the primary device for regulating intake air volume and unloading the compressor during idling or startup. This model is constructed from robust, corrosion-resistant metal, providing exceptional strength and dimensional stability even under sustained high-pressure operation. Reliable opening and sealing are ensured even under harsh industrial conditions.
Function and Operating Principle
This valve controls the amount of air entering the compression chamber and coordinates the compressor’s loading and unloading cycles. During start-up or standby, the valve remains closed to prevent pressure surges and unnecessary power consumption. When full operation begins, it opens precisely to admit air into the screw elements, maintaining a stable pressure ratio for optimal efficiency.
The intake unloader valve also works closely with the pressure sensor and solenoid control system to balance the air supply and automatically switch between load and no-load modes, significantly improving energy efficiency and extending the compressor’s service life.
Construction and Material Advantages
While many intake valves are made from lightweight aluminum, the 2906095800 adopts a high-density cast alloy or treated steel housing. This material offers greater thermal resistance and deformation tolerance, which is particularly important in high-temperature or high-humidity environments.
- The valve seat is precision-ground for a perfect seal, minimizing internal leakage.
- Sealing components use imported fluororubber (FKM) or NBR, ensuring stable performance under oil exposure.
- The internal spring and piston assembly are treated with anti-wear coatings to reduce friction and ensure long-term smooth motion.
Together, these design elements provide a higher pressure endurance and longer operational lifespan compared to conventional cast-aluminum valves.
Performance and Reliability
Every 2906095800 valve undergoes multiple factory-level tests — including airtightness, response time, and flow calibration — to ensure consistent performance. Its internal flow channel is engineered for low resistance, improving air delivery efficiency and reducing compressor load fluctuations.
In addition, the optimized valve geometry helps prevent carbon buildup and oil residue accumulation, common issues in long-running compressors, making it suitable for 24/7 operation in industrial workshops.
Installation and Compatibility
The 2906095800 intake unloading valve is fully compatible with a variety of Atlas Copco screw compressor models, especially those using GA and GX series main unit systems. Its mounting interface and control port layout conform to original equipment manufacturer (OEM) specifications, allowing for easy replacement without any modifications. Installation should be performed by a qualified technician to ensure correct pneumatic connections and calibration with the compressor's control logic. (Please consult us for specific models to ensure compatibility between our products and your air compressor.)
| Part Numbers | |||||||
|---|---|---|---|---|---|---|---|
| 1613681801 | 1613900884 | 2911000000 | 1617238400 | 2901046100 | 2910300200 | 1622963900 | 1623079485 |
| 1622171383 | 2901145300 | 2901000500 | 2901021200 | 1613679300 | 2906020100 | 2901141100 | 2901084001 |
| 1622316200 | 1625005540 | 2901000600 | 2901108401 | 1622171300 | 2901139900 | 2901099700 | 2205490598 |
| 1622316285 | 2906009500 | 3015500606 | 2200900943 | 1613900800 | 1614647680 | 1617238400 | 2906063320 |
| 1613814400 | 2901099700 | 1622963900 | 2906038000 | 1614900883 | 1513040081 | 2901021200 | 2901021701 |
| 1614900801 | 3001500626 | 2901084001 | 2901145300 | 1613815000 | 2906095900 | 2901108401 | 2901021200 |
We also offer intake unloading valves with the above part numbers. Please feel free to contact us if needed.
Maintenance and Service Tips
Routine inspection is essential for maintaining stable air intake performance. Operators should:
- Clean the air filter and inspect the unloader valve’s piston for oil sludge or dust buildup every 2000–3000 hours.
- Replace sealing O-rings during each major service cycle.
- Ensure the pneumatic control line remains dry and free of condensation to avoid delayed actuation.
Proper maintenance guarantees consistent compressor efficiency and prevents erratic unloading or over-compression.
Key Features Summary
- Heavy-duty cast alloy construction for maximum durability
- Precision-machined valve seat and piston for excellent sealing
- Resistant to oil, heat, and pressure fluctuations
- OEM-fit design for Atlas Copco GA/GX series compressors
- Extended service life and stable operation even under continuous duty
Conclusion
The Atlas Copco 2906095800 Intake Unloader Valve stands out for its strong, corrosion-resistant housing and precision-engineered sealing mechanism. Its robust build ensures long-term reliability in demanding environments where standard aluminum valves may fail prematurely. For maintenance teams and compressor operators seeking consistent pressure control, reduced downtime, and OEM-level quality, this component is a dependable choice.
MAECENAS IACULIS
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