Ayater 9900/9901 series high-pressure filters deliver superior contamination control for hydraulic systems up to 6000 psi. Designed for space-critical applications, these robust assemblies protect sensitive downstream components like servo valves through high-collapse, absolute-rated filtration technology.
In the modern fluid power landscape, system pressures are constantly rising, making precision filtration indispensable. The Ayater 9900 and 9901 series are engineered to bridge the gap between high-flow demands and limited installation space. These pressure line filters are the definitive choice for protecting high-performance machinery from the catastrophic effects of particulate contamination.
High-Cycle Fatigue Resistance: Constructed from high-strength ductile iron and steel, these housings are tested to endure over 1,000,000 pressure cycles from 0 to 400 bar, making them ideal for heavy-duty cycling equipment.
Precision Microglass Media: Utilizing proprietary inorganic fiber media, Ayater elements achieve a filtration efficiency of 
βx(c)≥1000. This multi-layer structure ensures maximum dirt-holding capacity and consistent fluid cleanliness.
Severe Duty Element Construction: The 9900/9901 series features a 210 bar (3000 psid) high-collapse rating, preventing bypass or element failure during cold starts or sudden flow surges,9900 series element collapse rating 210 bar.
Versatile Porting Options: Available with multiple thread types (G, SAE, NPT) and sizes to ensure seamless integration into existing global hydraulic circuits.
Comprehensive Technical Specifications
| Parameter | 9900 Series Data | 9901 Series Data | ||
|---|---|---|---|---|
| Max Operating Pressure | 400 bar (5800 psi) | 414 bar (6000 psi) | ||
| Nominal Flow Rate | Up to 100 L/min (26 GPM) | Up to 150 L/min (40 GPM) | ||
| Element Collapse Rating | 210 bar (3000 psid) | 210 bar (3000 psid) | ||
| Filtration Ratings | 1, 3, 5, 12, 25 micron (𝜇𝑚) | 1, 3, 5, 12, 25 micron (𝜇𝑚) | ||
| Temperature Range | -29°C to 120°C (-20°F to 250°F) | -29°C to 120°C (-20°F to 250°F) | ||
| Sealing Options | Fluorocarbon (Viton) / Nitrile | Fluorocarbon (Viton) / Nitrile | ||
| Indicator Trip Pressure | 3.5 bar (50 psid) | 3.5 bar (50 psid) | ||
Strategic Industry Applications
Plastic Injection Molding: Protection of proportional pressure and flow control valves.
Mobile Machinery: Filtering pressure lines in hydrostatic transmissions (HST).
Hydraulic Power Units (HPUs): Ensuring clean oil for high-pressure industrial tool circuits.
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