Views: 0 Author: Site Editor Publish Time: 2026-10-21 Origin: Site
In any pneumatic system, clean air is not a luxury—it is a necessity. Moisture, rust, pipe scale, and oil aerosols are the silent killers of pneumatic equipment. They accelerate seal wear, corrode internal components, clog small orifices, and lead to unexpected downtime.
The WAALPC AF Series Air Filter (models AF1500 and AF2000) serves as the first line of defense for your compressed air supply. Designed to deliver high-efficiency contaminant removal in a compact, durable package, the AF Series ensures that only clean, dry air reaches your downstream valves, cylinders, and tools.
This guide provides a detailed technical overview of the AF Series, covering its working principle, key features, technical specifications, and maintenance best practices.
Before compressed air reaches any pneumatic component, it must be conditioned. Ambient air drawn into a compressor contains dust, water vapor, and airborne particles. During compression, the air is heated, and as it cools in the piping system, condensation occurs. This combination of water and solid particles forms a corrosive sludge that is highly destructive.
The AF Series Air Filter effectively removes these contaminants, offering three main benefits:
Extends Equipment Life: Prevents rust, corrosion, and abrasive wear.
Reduces Maintenance: Keeps valve spools moving freely and prevents clogging.
Ensures Product Quality: Protects sensitive processes in food, pharmaceutical, and electronics manufacturing.
The AF Series operates using a highly effective two-stage filtration process:
Compressed air enters the filter bowl tangentially, creating a high-speed, swirling vortex. This centrifugal force flings heavier water droplets and large solid particles against the inner wall of the transparent bowl. The liquid and debris then fall to the bottom of the bowl, ready for drainage.
After the initial separation, the air passes through a precision filter element. WAALPC offers three interchangeable filter elements to meet different air quality requirements:
5μm: High-precision filtration for sensitive pneumatic instruments and small-bore cylinders.
25μm: Standard filtration for general industrial automation.
40μm: Coarse filtration for less sensitive applications or general plant air.
The filtered air then exits the unit, ready to be regulated or lubricated downstream.
High-Efficiency Water Separation: The optimized internal baffle design ensures superior removal of liquid condensate.
Transparent PE Bowl: The clear Polyethylene (PE) bowl allows for 360° visual inspection, making it easy to monitor the filter element condition and check the water level.
Compact & Lightweight: The die-cast aluminum housing provides a robust yet compact design, saving valuable installation space.
Multiple Filtration Options: Available in 5μm, 25μm, and 40μm grades to suit specific application needs.
Reliable Sealing: High-quality NBR O-rings ensure a leak-free connection between the body and the bowl.
Flexible Drain Options: Available with a standard manual drain or an optional automatic drain to suit different operational requirements.
Parameter | AF1500 | AF2000 |
|---|---|---|
Working Medium | Air | Air |
Port Size | G1/8 | G1/4 |
Grade of Filtration | 5μm, 25μm, 40μm | 5μm, 25μm, 40μm |
Max. Operating Pressure | 0.95 MPa (9.5 bar) | 0.95 MPa (9.5 bar) |
Pressure Resistance | 1.5 MPa (15 bar) | 1.5 MPa (15 bar) |
Operating Temperature | 5 – 60°C | 5 – 60°C |
Filter Cup Capacity | 15 CC | 15 CC |
Housing Material | Aluminum die-cast | Aluminum die-cast |
Container Cup Material | PE (Polyethylene) | PE (Polyethylene) |
Drain Type | Manual (Standard) / Auto (Optional) | Manual (Standard) / Auto (Optional) |
The AF1500 and AF2000 are widely used across industries where clean air is critical:
General Manufacturing: Preparing compressed air for plant-wide distribution.
Automotive Industry: Air supply for assembly tools, paint lines, and testing fixtures.
Electronics Manufacturing: Clean, dry air for sensitive component handling and cleanrooms.
Packaging Machinery: Protecting pneumatic cylinders and grippers from wear.
Marine and Offshore: Removing moisture from air systems in high-humidity environments.
Check Flow Direction: Ensure the airflow follows the arrow on the body (IN to OUT).
Vertical Mounting: Install the filter vertically with the bowl pointing downwards. This ensures proper condensate drainage and protects the filter element.
Thread Preparation: Apply PTFE tape to male threads only, leaving the first thread bare to prevent debris from entering the valve.
Upstream Placement: Install the AF filter upstream of regulators, lubricators, and directional control valves.
Daily: Check the water level in the bowl. Drain the condensate manually before it reaches the bottom of the filter element.
Monthly: Verify the exterior of the unit and check for air leaks at the bowl connection.
Every 3-6 Months: Replace the filter element. The element should be replaced when the pressure drop across the filter exceeds 0.05 MPa, or based on visual inspection of contamination.
✅ Proven Reliability: The first line of defense for your pneumatic system.
✅ Versatile Filtration: Choose from 5μm, 25μm, or 40μm elements.
✅ Easy Monitoring: Transparent PE bowl for quick visual checks.
✅ Durable Construction: Die-cast aluminum body with robust seals.
✅ Flexible Options: G1/8 and G1/4 port sizes, with manual or auto drain.
✅ Global Compatibility: Standard BSPP (G) threads, with other thread types available upon request.
The WAALPC AF Series Air Filter (AF1500 & AF2000) is a compact, high-performance solution for compressed air filtration. By removing harmful moisture, oil, and solid particles, it protects your valuable pneumatic equipment and ensures consistent system performance.
Key takeaways:
Models: AF1500 (G1/8) and AF2000 (G1/4).
Function: Centrifugal water separation and mechanical filtration.
Filtration Options: 5μm, 25μm, 40μm.
Maximum Pressure: 0.95 MPa operating, 1.5 MPa proof.
Application: Ideal for general industrial automation, electronics, and automotive systems.
For more information about the WAALPC AF Series Air Filter or to discuss your specific application requirements, please contact our technical sales team or visit www.waalpc.com.
