In modern hydraulic circuits, the return line is the last line of defense. The Ayater UR319 series is a high-performance replacement for SRT-style return filters, specifically engineered to handle high flow rates and rapid pressure pulsations. By employing a unique long-life pleated media, the UR319 ensures that return-to-tank oil meets or exceeds stringent ISO cleanliness targets, protecting the entire reservoir from ingested and generated contaminants.
The UR319 series is designed for low pressure-drop performance and maximum dirt-holding capacity. Below are the definitive specifications for the Ayater UR319 replacement series:
| Technical Parameter | Specification Details | ||
|---|---|---|---|
| Product Series | UR319 High-Flow Return Line Series | ||
| Flow Direction | Inside-to-Outside (In-to-Out) | ||
| Filter Media | SRT (Stress-Resistant Technology) Glass Fiber | ||
| Filtration Efficiency |
|
||
| Micron Ratings | 1µm, 3µm, 6µm, 12µm, 25µm | ||
| Maximum Operating Pressure | 40 bar (600 psi) | ||
| Rated Fatigue Pressure | 0 to 40 bar per NFPA T2.6.1 | ||
| Temperature Range | -29°C to 120°C (-20°F to 250°F) | ||
| Bypass Valve Cracking Pressure | 1.7 bar (25 psid) or 4.5 bar (65 psid) | ||
| Housing Compatibility | UR319 Series Single/Duplex Enclosures | ||
| Seals | Nitrile (Buna-N), Fluorocarbon (Viton*), Ethylene Propylene |
1.Optimized SRT Geometry: The UR319 design maximizes the effective filtration area, reducing clean pressure drop (ΔP) and ensuring the element remains in the "stable" filtration zone longer than standard alternatives.
2.Electrostatic Discharge Prevention: Our media includes anti-static dissipation layers to mitigate potential varnish formation caused by oil friction in high-velocity return lines.
3.Coreless & Environmentally Friendly: The UR319 elements are often designed as coreless inserts, reducing waste and disposal costs while maintaining structural integrity under high flow.
4.Silt Control Excellence: Specifically targeted at 1-5 micron particles, these filters prevent the "sandblasting" effect on sensitive hydraulic valves and pumps.
Ayater provides direct replacements for all UR319 configurations, including:
UR319Z (Standard service)
UR319H (High-duty cycles)
Available lengths: 20-inch and 40-inch (e.g., UR319F40Z, UR319F20H)
Compatible with UE319 series element inserts.
Maximum Allowable Working Pressure: 41 bard (600 psid)
Rated Fatigue Pressure: 41 bard (600 psid) 106 cycles per NFPA T2.06.01R2-2001
Typical Burst Pressure: 145 bard (2100 psid)
Fluid Compatibility: Compatible with all petroleum oils, water glycols, water-oil emulsions and most synthetic hydraulic and lubrication fluids
Temperature Range: Fluorocarbon Seals: -29 °C to 120 °C (-20 °F to 250 °F) 60 °C (140 °F) maximum in HWCF or water glycol fluids
Materials of Construction:
Tube: Carbon steel
Head and Cover: Ductile Cast Iron
Filter Element Burst Pressure: 10 bard (150 psid)
Ultipleat SRT Element Construction: Inorganic fibers impregnated and bonded with epoxy resins. Polymer endcaps. Anti-static media design
Housing pressure drop is directly proportional to specific gravity.
Multiply actual flow rate times factor in table below to determine pressure drop with fluid at 32 cSt (150 SUS), 0.9 S.G. Correct for other fluids by multiplying new viscosity in cSt/32 (SUS/150) x new S.G./0.9. Note: factors are per 1000 L/min and per 1 US gpm.
| Length Code | AZ | AP | AN | AS | AT |
| 08 | 5.52 (0.302) | 2.30 (0.126) | 1.82 (0.100) | 1.32 (0.072) | 0.82 (0.045) |
| 13 | 3.31 (0.182) | 1.38 (0.076) | 1.09 (0.060) | 0.79 (0.043) | 0.49 (0.027) |
| 20 | 2.18 (0.120) | 0.91 (0.050) | 0.72 (0.040) | 0.52 (0.029) | 0.33 (0.018) |
| 40 | 1.10 (0.060) | 0.46 (0.025) | 0.36 (0.020) | 0.26 (0.014) | 0.16 (0.009) |
UR319 Series 20" length housing with F24 (11⁄2" SAE) split flange ports using AN grade media. Operating conditions 300 L/min flow rate using a hydraulic fluid of 50 cSt and specific gravity (s.g.) 1.2.
Total Filter ΔP
= ΔP housing + ΔP element
= (0.48 x 1.2/0.9) bard (housing)
+ ((300 x 0.72/1000) x 50/32 x 1.2/0.9) bard (element)
= 0.64 bard (housing) + 0.45 bard (element)
= 1.09 bard (15.8 psid)
| UR319CA24 08ZA9YR85 UR319CC24 08ZA9YR85 UR319CA24 13ZA9YR85 UR319CC24 13ZA9YR85 UR319CA24 20ZA9YR85 UR319CC24 20ZA9YR85 UR319CA24 40ZA9YR85 UR319CC24 40ZA9YR85 UR319CA32 13ZA9YR85 UR319CC32 13ZA9YR85 UR319CD32 13ZA9YR85 UR319CF32 13ZA9YR85 UR319CA32 20ZA9YR85 UR319CC32 20ZA9YR85 UR319CD32 20ZA9YR85 UR319CF32 20ZA9YR85 UR319CA32 40ZA9YR85 UR319CC32 40ZA9YR85 UR319CD32 40ZA9YR85 UR319CF32 40ZA9YR85 UR319CD40 13ZA9YR85 UR319CF40 13ZA9YR85 UR319CD40 20ZA9YR85 UR319CF40 20ZA9YR85 UR319CD40 40ZA9YR85 UR319CF40 40ZA9YR85 |
UR319CA24 08ZG9YR85 UR319CC24 08ZG9YR85 UR319CA24 13ZG9YR85 UR319CC24 13ZG9YR85 UR319CA24 20ZG9YR85 UR319CC24 20ZG9YR85 UR319CA24 40ZG9YR85 UR319CC24 40ZG9YR85 UR319CA32 13ZG9YR85 UR319CC32 13ZG9YR85 UR319CD32 13ZG9YR85 UR319CF32 13ZG9YR85 UR319CA32 20ZG9YR85 UR319CC32 20ZG9YR85 UR319CD32 20ZG9YR85 UR319CF32 20ZG9YR85 UR319CA32 40ZG9YR85 UR319CC32 40ZG9YR85 UR319CD32 40ZG9YR85 UR319CF32 40ZG9YR85 UR319CD40 13ZG9YR85 UR319CF40 13ZG9YR85 UR319CD40 20ZG9YR85 UR319CF40 20ZG9YR85 UR319CD40 40ZG9YR85 UR319CF40 40ZG9YR85 |
UR319CA24 08ZN9YR85 UR319CC24 08ZN9YR85 UR319CA24 13ZN9YR85 UR319CC24 13ZN9YR85 UR319CA24 20ZN9YR85 UR319CC24 20ZN9YR85 UR319CA24 40ZN9YR85 UR319CC24 40ZN9YR85 UR319CA32 13ZN9YR85 UR319CC32 13ZN9YR85 UR319CD32 13ZN9YR85 UR319CF32 13ZN9YR85 UR319CA32 20ZN9YR85 UR319CC32 20ZN9YR85 UR319CD32 20ZN9YR85 UR319CF32 20ZN9YR85 UR319CA32 40ZN9YR85 UR319CC32 40ZN9YR85 UR319CD32 40ZN9YR85 UR319CF32 40ZN9YR85 UR319CD40 13ZN9YR85 UR319CF40 13ZN9YR85 UR319CD40 20ZN9YR85 UR319CF40 20ZN9YR85 UR319CD40 40ZN9YR85 UR319CF40 40ZN9YR85 |
Certificate of Honor
CE
Certificate name
ISO 9001
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