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Help CenterIndustrial Air-Oil Separator Filter, 40mm Connection, 16 Bar Max Pressure, Automatic Drain Valve, Built-in Pressure Gauge
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As a dedicated manufacturer since 1998, Anping County Boli Hardware Wiremesh Products Factory proudly presents our Industrial Air-Oil Separator Filter with 40mm connection, 16 Bar max pressure, automatic drain valve, and built-in pressure gauge. This product is engineered to deliver high-efficiency separation of oil and moisture from compressed air, ensuring clean and dry air for your critical pneumatic equipment. With over two decades of manufacturing experience, we combine robust construction with precise filtration to extend the life of your machinery and reduce maintenance costs.
Our air-oil separator filter is designed for demanding industrial environments where reliable performance is non-negotiable. The built-in pressure gauge allows real-time monitoring of system pressure, while the automatic drain valve eliminates the need for manual draining, saving time and preventing water buildup. Whether you operate in manufacturing, automotive, food processing, or general pneumatic applications, this filter provides consistent protection against oil carryover and particulate contamination.
Key Features & Technical Specifications
- High-Efficiency Oil Separation: Advanced coalescing filter element removes up to 99.9% of oil aerosols and liquid oil, delivering ISO 8573-1 Class 2 oil-free air.
- 40mm (G1-1/2) Connection: Standard threaded ports for easy integration into existing pipeline systems. NPT threads available on request.
- 16 Bar Maximum Pressure Rating: Suitable for high-pressure compressor systems, ensuring safe operation under peak loads.
- Automatic Float Drain Valve: Self-actuating mechanism drains accumulated condensate without operator intervention, reducing downtime and maintenance.
- Built-in Pressure Gauge: 0-16 Bar gauge with 1.6% accuracy, allowing quick visual checks of differential pressure across the filter element.
- Robust Housing: Constructed from high-strength aluminum alloy or optional carbon steel, resistant to corrosion and impact.
- Easy Element Replacement: Bayonet or twist-lock design for quick filter changes without tools.
- Wide Temperature Range: Operates from -20°C to +80°C, adaptable to various climates.
Technical Parameter Table
| Parameter | Value |
| Connection Size | 40mm (G1-1/2) / NPT optional |
| Max Working Pressure | 16 Bar (232 psi) |
| Filtration Grade | 0.1 micron (nominal) |
| Initial Pressure Drop | <0.2 Bar |
| Max Operating Temperature | 80°C (176°F) |
| Drain Type | Automatic float drain |
| Gauge Range | 0-16 Bar |
| Housing Material | Aluminum alloy (standard) / Carbon steel (optional) |
| Weight | Approx. 2.5 kg |
Benefits for Your Operations
- Extended Equipment Life: Removing oil and moisture prevents corrosion and wear in downstream components like valves, cylinders, and tools.
- Reduced Energy Costs: Lower pressure drop means less energy consumption by your compressor.
- Minimal Maintenance: Automatic drain and long-life filter element (up to 12 months under normal conditions) reduce service intervals.
- Compliance with Air Quality Standards: Achieves oil-free air suitable for sensitive applications such as instrumentation and food packaging.
- Easy Installation: Compact design with standard port sizes fits into existing systems without modification.
- Cost-Effective: Competitive pricing from our direct factory supply, with bulk discounts available.
With annual export value exceeding US$5 million and shipping to global markets including North America, Europe, Southeast Asia, and the Middle East, our products are trusted by customers worldwide. We ship from major ports such as Tianjin, Qingdao, and Shanghai, ensuring fast and reliable delivery. Our factory has been refining manufacturing processes for over 25 years, guaranteeing consistent quality and on-time production.
We understand that every application is unique. That's why we offer customization options for connection threads, housing materials, and filtration grades — all available upon request. Our experienced technical team is ready to assist with selection and after-sales support. Contact us today to discuss your specific requirements or to request a quote. Experience the reliability and efficiency of a Boli air-oil separator filter in your compressed air system.
Frequently Asked Questions
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Q: What types of compressors can this filter be used with?
A: It is compatible with most industrial rotary screw, reciprocating, and centrifugal compressors that have a 40mm connection port. Always verify thread type (G or NPT) before purchase. -
Q: How often should the filter element be replaced?
A: Replacement interval depends on operating conditions, typically every 6–12 months. The built-in pressure gauge helps monitor differential pressure; replace when it exceeds 0.7 Bar above initial value. -
Q: Does the automatic drain valve work in all orientations?
A: The float drain is designed for vertical installation. For horizontal or inverted mounting, consult our technical support for alternative drain options. -
Q: Can I use this filter for high-temperature environments?
A: The standard model operates up to 80°C. For higher temperature applications (up to 120°C), we offer a high-temperature version — please contact us. -
Q: Is the pressure gauge accurate?
A: Yes, the gauge has an accuracy of 1.6% of full scale (0-16 Bar), suitable for routine monitoring. For higher precision, external gauges can be added. -
Q: Do you provide custom connector sizes?
A: Absolutely. We can supply with 1/2", 3/4", 1", or other NPT/BSP threads upon request. Minimum order quantities may apply. -
Q: What certifications does this product have?
A: While specific certifications are not listed, our manufacturing process follows strict quality control standards. Certificates can be provided upon request for specific markets. -
Q: How is the filter shipped?
A: Each unit is individually packaged in a sturdy carton with foam cushioning. For bulk orders, we use palletized export packaging to ensure safe transit.
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