Atlas Copco Unloader Valve 1622348900 1622348880 for Screw Air Compressor
Reliable unloader valve assembly for Atlas Copco oil-injected screw compressors, designed to ensure smooth pressure relief, stable load control, and long-term operation under demanding industrial conditions.
| Application |
Screw Air Compressor |
|---|---|
| Material |
Aluminum ,Stainless Steel |
The Atlas Copco Unloader Valve 1622348900 / 1622348880 plays a vital role in regulating air pressure during the compressor’s start and stop cycles. By automatically releasing pressure from the compression chamber when the compressor is unloaded, it prevents unnecessary wear on key components and ensures a balanced transition between loaded and unloaded states.
This valve is precision-engineered to meet Atlas Copco OEM specifications, offering superior air tightness, corrosion resistance, and reliable performance even in high-temperature and high-humidity environments. It’s an essential component for maintaining the energy efficiency and operational safety of screw-type air compressors.
Material & Construction
This model features a lightweight aluminum alloy body that delivers excellent heat dissipation and corrosion resistance while maintaining structural strength. The aluminum construction not only reduces overall compressor weight but also enhances response sensitivity, ensuring quick and stable pressure control during operation.
The valve housing is precisely machined from high-grade anodized aluminum, offering improved resistance to oxidation and surface wear. Internal components are treated with a low-friction coating, ensuring smooth movement of the valve spool and minimizing abrasion over extended use.
Each unit is fitted with durable Viton O-rings and precision-engineered sealing seats, achieving reliable airtight performance under varying temperature and pressure conditions. The finely polished internal channels reduce airflow resistance, maintaining consistent and efficient pressure regulation throughout the compressor’s duty cycle.
Functional Features
- Automatic Pressure Control: Efficiently switches between load and unload states to maintain balanced system pressure.
- Enhanced Durability: Robust internal components designed to withstand repeated high-pressure cycles.
- Energy Efficiency: Minimizes compressor idle time, reducing energy waste and extending machine lifespan.
- Stable Operation: Maintains consistent flow and avoids sudden pressure spikes that could damage the air system.
Application & Compatibility
This unloader valve is suitable for a wide range of Atlas Copco oil-injected screw compressor models, particularly those used in continuous-duty manufacturing, automotive, and energy sectors.
It ensures compatibility with the following part numbers:
- 1622348900
- 1622348880
Its installation dimensions and interface match OEM specifications precisely, allowing for quick replacement without modification.
| 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.
Performance & Maintenance
Routine inspection and timely cleaning of the unloader valve help prevent carbon buildup and oil residue, both of which can affect airflow response. For optimal results, replace the valve every 8,000–10,000 operating hours depending on compressor duty conditions.
When paired with genuine filter and separator elements, this valve contributes to the stable and efficient operation of the entire air system.
Why Choose Our Replacement Valve
Our unloader valves are produced under strict ISO9001 quality standards, with 100% leak and pressure tests before packaging. The internal structure replicates OEM geometry for reliable sealing, while the improved valve seat material extends service life under continuous operation. Whether you’re maintaining a GA series or ZR-type compressor, this component ensures dependable long-term performance.
MAECENAS IACULIS
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ADIPISCING CONVALLIS BULUM
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