Atlas Copco Air Compressor One-way Check Valve Manufacturer 02250115-272 02250172-320
These check valves provide dependable reverse-flow protection for screw air compressors. Built with reinforced internal components, optimized sealing structure, and high-temperature materials, they ensure safe, efficient, and stable compressor operation.
| Application |
Air Compressor |
|---|---|
| Material |
Stainless Steel |
The 02250115-272 / 02250172-320 / 02250110-557 Check Valves are high-precision non-return valves engineered for use in industrial screw air compressor systems. Their primary role is to maintain a strictly one-direction airflow, preventing high-pressure backflow from reaching the compressor head, storage tank, or oil circuit.
While the functional principle is straightforward, the internal dynamics of a screw compressor place the valve under constant thermal load, pressure cycling, and oil-air mixture exposure. These models are specifically designed to handle these conditions with stable sealing performance and long-term durability.
Functional Role in Screw Compressor Operation
Unlike general-purpose check valves, air-compressor valves must respond instantly during load/unload transitions and system shutdown. During the compression phase, the valve opens smoothly under forward pressure, allowing airflow to pass with minimal turbulence.
When the system unloads or stops, the valve must snap closed to isolate the air end from downstream pressure.
This rapid closure prevents:
- Reverse pressurization damaging the rotor group
- Heavy backflow hitting the separator tank
- System instability during startup or low-pressure operation
These models are calibrated to maintain consistent responsiveness even under continuous 24-hour operation.
Internal Mechanism & Engineering Design
The valve uses a spring-loaded poppet design, where the internal poppet moves axially within a precision-machined guide. The geometry is optimized to ensure smooth motion without binding, even when exposed to oil mist or micro-particles.
Key design features include:
- Low-pressure drop flow path to improve air delivery efficiency
- Polished seat and poppet contact surface that enhances sealing accuracy
- Reinforced spring steel designed for repeated pressure cycles without fatigue
- Balanced mass distribution on the moving parts to avoid vibration-induced misalignment
This engineering ensures consistent performance during high-frequency load cycling typical in industrial compressors.
Material Composition & Surface Treatment
To ensure long-term reliability, the valve body is typically manufactured from heat-treated carbon steel or anodized aluminum, depending on the exact model specification. Each material provides excellent dimensional stability at elevated temperatures.
The sealing elements use oil-resistant elastomers capable of sustaining prolonged exposure to oil vapor, moisture, and compressed air.
The moving poppet and seat surfaces are treated with anti-wear coatings, which significantly reduce friction and extend service intervals by limiting abrasion.
Performance Characteristics
These three models offer:
- Reliable reverse-flow protection under varying load conditions
- High-temperature sealing stability during continuous operation
- Fast closing response to prevent backflow shock
- Smooth airflow with reduced pressure loss
- Longer lifespan thanks to reinforced wear-resistant materials
Their performance has been validated for heavy-duty compressor environments where temperature, humidity, and pressure fluctuate frequently.
Compatibility & Application Range
Models 02250115-272, 02250172-320, and 02250110-557 are widely used across multiple air compressor platforms and can be installed in discharge, tank connection, or protection points depending on system design.
Their dimensional tolerance, connection type, and pressure rating allow straightforward replacement of OEM parts, ensuring reliable drop-in compatibility.
Quality Control & Testing Standards
Each valve undergoes a rigorous quality inspection process, including:
- Pressure tightness test to ensure zero leakage
- Cycle endurance test simulating thousands of open/close actions
- Thermal fatigue evaluation replicating long-term industrial use
- Material hardness and coating adhesion tests
- Flow performance analysis verifying low resistance and smooth airflow
Only valves that meet strict dimensional and performance benchmarks are released for use.
Installation & Service Considerations
For best performance:
- Install the valve following the marked airflow direction
- Ensure the pipeline is free of debris and metal chips before installation
- Periodically check for carbonization, oil sludge buildup, or poppet sticking
- Replace seals if any early-stage leakage is detected
- Avoid excessive tightening, which may distort the housing
Proper installation and basic maintenance substantially extend the valve’s service life and maintain compressor efficiency.
MAECENAS IACULIS
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ADIPISCING CONVALLIS BULUM
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