In industrial and machinery operations, maintaining hydraulic systems at optimal performance is crucial for efficiency, reliability, and longevity. A key aspect of ensuring this performance is the cleanliness of the hydraulic oil used in these systems. One widely recognized standard for measuring lubricant cleanliness is the National Aerospace Standard (NAS) 1638. Within this system, "NAS 7" is a classification level that indicates specific particle contamination limits. In this blog post, we will explore NAS 7 cleanliness, its significance, and how our Ashless and High Viscosity (HV) Hydraulic Oils meet these critical standards to keep your equipment running smoothly.
What Is NAS 7 Cleanliness?
NAS 1638 was originally developed for aerospace and industrial fluid power applications to classify particle contamination levels in hydraulic oils. NAS 7 refers to a cleanliness level that limits the number of particles of various sizes present in 100 milliliters of fluid. For instance, it allows up to 32,000 particles in the 5-15 µm range and up to 32 particles larger than 100 µm.
Achieving NAS 7 cleanliness or better is vital for hydraulic systems, as contaminants can cause wear, corrosion, and reduced system efficiency. With clean hydraulic oil, components such as pumps, valves, and actuators can function reliably, reducing the risk of unexpected downtime and costly repairs.
Why Clean Hydraulic Oil Matters?
Particle contamination is one of the leading causes of equipment failure. Even microscopic particles can damage sensitive components in hydraulic systems. Clean hydraulic oil offers several benefits:
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Reduced Wear and Tear: Clean oil minimizes abrasion and corrosion, extending the life of your equipment.
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Improved Efficiency: Contaminants increase friction and energy loss. Clean oil ensures optimal performance.
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Lower Maintenance Costs: Fewer contaminants mean fewer repairs and replacements.
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Enhanced Reliability: With clean oil, your machinery is less likely to experience unexpected failures.
Sinopec’s Hydraulic Oil Solutions
Our hydraulic oil products are designed to meet stringent cleanliness standards, ensuring your systems operate at peak efficiency. Here’s how our offerings align with your cleanliness and performance needs:
Ashless Zinc-Free Hydraulic Oils
Sinopec Ashless Hydraulic Oils are formulated for systems requiring environmentally friendly and zinc-free solutions. These oils are engineered to meet or exceed NAS 7 cleanliness levels, providing:
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Excellent oxidation stability.
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Superior anti-wear performance.
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Reduced sludge formation, keeping systems cleaner for longer.
Perfect for industries prioritizing eco-friendly operations without compromising performance.
High Viscosity Hydraulic Oils
Sinopec High Viscosity Hydraulic Oils offer exceptional performance for heavy-duty applications. These oils maintain NAS 7 cleanliness, delivering:
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High resistance to thermal and oxidative degradation.
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Superior viscosity stability, even in extreme temperatures.
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Outstanding protection for high-pressure hydraulic systems.
Ideal for demanding environments where equipment operates under high stress and varying conditions.
Achieving NAS 7 Cleanliness with Sinopec
Sinopec’s hydraulic oils undergo rigorous filtration and quality control processes to ensure they meet NAS 7 cleanliness standards. By using our oils, you can:
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Protect sensitive hydraulic components.
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Extend the service life of your equipment.
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Minimize downtime and maximize productivity.
Ready to Optimize Your Hydraulic Systems?
Investing in clean hydraulic oil is investing in the longevity and reliability of your equipment. Explore our range of Ashless Zinc-Free Hydraulic Oils and High Viscosity Hydraulic Oils today. Ensure your systems meet NAS 7 cleanliness standards and experience the Sinopec difference.
For more information, contact our team or browse our collection to find the perfect solution for your machinery.
