Ayater UR699 is a 45MPa high-pressure return line filter with 900L/min flow, enabling precise oil purification and easy filter element replacement.
The UR699 series is optimized for maximum dirt-holding capacity and flow stability. Below are the essential specifications for the Ayater UR699 replacement series:
| Technical Feature | Detailed Specification | |
|---|---|---|
| Product Model | UR699 Replacement Series | |
| Element Geometry | Inside-to-Outside (In-to-Out) Flow | |
| Flow Rate Rating | Up to 835 L/min (220 US gpm) | |
| Filtration Ratings | 3µm, 7µm, 12µm, 25µm (Absolute 𝛽≥2000) | |
| Maximum Operating Pressure | 28 bar (400 psi) | |
| Fatigue Resistance | 1,000,000 cycles (0-28 bar) | |
| Filter Media Type | Anti-static Inorganic Glass Fiber | |
| Seal Configuration | Fluorocarbon (Viton) / Nitrile (Buna-N) | |
| End Cap Material | Corrosion-resistant Polymer / Reinforced Steel | |
| Bypass Valve Options | 1.7 bar (25 psid) or 4.5 bar (65 psid) | |
| Housing Compatibility | UR699 Single & Duplex Return Assemblies |
Varnish Mitigation Technology: High-velocity fluid friction often generates static electricity. The UR699 filter incorporates an anti-static mesh that dissipates charges, effectively preventing the oil oxidation and varnish that lead to sticky valves.
Cajon-Style Sealing System: Our elements utilize a high-integrity sealing interface that prevents bypass leakage even under extreme mechanical vibration or thermal cycling.
In-to-Out Contaminant Retention: The unique flow direction ensures that all captured debris remains trapped inside the filter "basket" during maintenance, eliminating the risk of re-contaminating the reservoir during element changes.
Exceptional Silt Control: Specifically tuned for fine particle capture, the UR699 excels at removing the 1-5 micron silt that causes premature wear in high-pressure pumps and proportional controls.
UR699 Cross-Reference & Replacement Parts
Ayater provides direct-fit high-performance replacements for all UE619 series elements used in UR699 housings:
UR699Z (Standard 28 bar return service)
UR699H (Enhanced fatigue-resistant versions)
Common lengths: 20-inch and 40-inch (e.g., UR699F40Z, UR699F20H)
Patented Ultipleat (laid-over pleat) filter medium pack
Stress-Resistant Technology (SRT) Media
Coreless filter element configuration
Low clean differential pressure for low energy operation
Pressure Drop Information
The UR699 hydraulic filter (including UR699 hydraulic return line filter variants) is widely used in:
Mining machinery (excavators, bulldozers, hydraulic support systems)
Large-scale industrial hydraulic power units (HPU) for steel mills
Offshore oil drilling platforms (high-pressure hydraulic control systems)
Injection molding machines (large-tonnage, high-flow hydraulic circuits)
Heavy-duty truck hydraulic systems (brake, steering circuits)
Renewable energy equipment (wind turbine hydraulic pitch systems)
For new installations, select one complete part number from each section below
| Port & Length Options |
| Tables 1, 2 and 3 |
| CA3220Z |
| CA3240Z |
| CC3220Z |
| CC3240Z |
| CD3220Z |
| CD3240Z |
| CD4020Z |
| CD4040Z |
| CF3220Z |
| CF3240Z |
| CF4020Z |
| CF4040Z |
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