Shut-off Stop Valve 2255275100 2255280980 for Atlas Copco Screw Air Compressors
The Atlas Copco shut-off stop valve (2255275100 / 2255280980 / 1604610981) is engineered for precise isolation and reliable air-flow interruption in oil-injected screw compressor systems. Built with high-strength materials, a stable sealing structure, and smooth internal flow geometry, it ensures dependable operation in demanding industrial environments.
| Application |
Screw Air Compressor |
|---|---|
| Material |
Stainless Steel |
This shut-off stop valve is specifically designed for Atlas Copco oil-injected screw compressors, where airflow isolation plays a crucial role in stabilizing system pressure, protecting the airend, and enabling safe maintenance procedures. In Atlas Copco’s compressed-air architecture, the valve is positioned in circuits where controlled flow interruption is required—typically between the separator tank, piping manifold, and auxiliary filtration modules. Its function is not merely to stop airflow but to maintain the internal pressure distribution that Atlas Copco compressors rely on for efficient compression cycles.
To support these operational needs, the valve features a reinforced body structure, carefully engineered internal passages, and a sealing assembly optimized for high-frequency actuation.
Engineering Structure & Internal Mechanism
Unlike general-purpose industrial valves, Atlas Copco shut-off valves are built with tighter machining tolerances to match the brand’s pressure-control logic. The body of the 2255275100 / 2255280980 / 1604610981 series is typically constructed from corrosion-resistant alloy steel or treated ductile materials capable of withstanding continuous exposure to pressurized, oil-rich air.
The internal flow channel adopts a balanced, low-turbulence geometry that minimizes pressure drop when the valve is open. This is essential for maintaining compressor efficiency, particularly in Atlas Copco machines where stable internal airflow improves cooling performance and reduces load on the airend.
Inside the valve, the stem moves along a precisely aligned seat surface to ensure consistent tracking. The design prevents micro-friction or side loading, providing predictable actuation even after prolonged use. The seat surface is treated to resist wear caused by temperature changes and continuous airflow impact.
Sealing Performance Optimized for Oil-Injected Systems
Oil-injected screw compressors generate warm, oil-laden airflow, which can degrade common sealing materials. To address this, the valve incorporates an oil-resistant elastomer sealing structure formulated for thermal stability and low deformation. This ensures that the valve maintains a tight closure across a wide temperature range.
The sealing interface is designed to maintain constant contact pressure without relying on excessive spring force. This prevents premature seat deformation and reduces the risk of internal leakage—an issue that can cause lower discharge pressure, increased energy consumption, and instability in inlet regulation.
The result is a shut-off valve capable of delivering a leak-free seal under continuous load cycles.
Corrosion, Heat & Pressure Resistance
The manufacturing process includes surface treatments that protect the valve body from oxidation, chemical exposure, and moisture condensation inside the compressor. The materials used are compatible with synthetic compressor oils commonly used in Atlas Copco machines, ensuring that the valve’s internal surfaces remain unaffected by extended lubrication contact.
The valve can withstand:
- Elevated continuous operating temperatures
- Rapid pressure fluctuations during start/stop cycles
- High humidity or dust-laden industrial environments
This robustness makes the valve suitable for extended duty cycles and round-the-clock operation.
Manufacturing Precision & Quality Assurance
The 2255275100 / 2255280980 / 1604610981 series undergoes stringent machining on CNC equipment to ensure uniform tolerances on every contact surface. The alignment between stem, seat, and body is inspected to maintain smooth mechanical behavior.
Each valve is pressure-tested to verify sealing integrity, structural strength, and actuation reliability. Testing includes:
- Leak simulation under working pressure
- Thermal expansion resistance
- Smooth opening/closing after repeated cycles
- Anti-corrosion and oil-resistance verification
Only components that meet Atlas Copco’s performance standard are approved for shipment.
Application & Installation Compatibility
These shut-off valves are compatible with various Atlas Copco GA/GR/ZR/ZT series screw compressors and other units using the same pipeline architecture. They can be installed on internal piping interfaces such as:
- Air/oil separator outlet lines
- Internal distribution pipes
- Cooling system manifolds
- Filter module inlet/outlet positions
- Safety isolation points within the compressor body
Installation is straightforward: ensure proper thread sealing, tighten to recommended torque, and perform a gradual pressurization test to validate sealing function.
Advantages for End Users
Choosing this shut-off valve offers several operational benefits:
- Stable airflow management
- Reliable isolation during maintenance
- Improved compressor efficiency through reduced leakage
- Long service life thanks to resistant materials and precision machining
- Lower risk of unplanned shutdowns caused by valve failure
Its performance consistency makes it a dependable choice for manufacturing plants, workshops, and heavy-duty processing facilities using Atlas Copco compressors.
MAECENAS IACULIS
Vestibulum curae torquent diam diam commodo parturient penatibus nunc dui adipiscing convallis bulum parturient suspendisse parturient a.Parturient in parturient scelerisque nibh lectus quam a natoque adipiscing a vestibulum hendrerit et pharetra fames nunc natoque dui.
ADIPISCING CONVALLIS BULUM
- Vestibulum penatibus nunc dui adipiscing convallis bulum parturient suspendisse.
- Abitur parturient praesent lectus quam a natoque adipiscing a vestibulum hendre.
- Diam parturient dictumst parturient scelerisque nibh lectus.
Scelerisque adipiscing bibendum sem vestibulum et in a a a purus lectus faucibus lobortis tincidunt purus lectus nisl class eros.Condimentum a et ullamcorper dictumst mus et tristique elementum nam inceptos hac parturient scelerisque vestibulum amet elit ut volutpat.
