
High-performance Ayater UT319 hydraulic filter elements designed for superior fluid cleanliness. These precision-engineered filters ensure optimal component protection and extended service intervals in demanding industrial power units.

Ayater UT319 Filters are engineered for precision contaminant removal and long-term reliability in demanding industrial environments. Designed with advanced filtration media and robust construction, these filters protect critical equipment from abrasive particles, extend fluid service life, and minimize operational downtime-aligning with Ayater's commitment to high-performance fluid system solutions. Suitable for diverse sectors requiring consistent filtration under variable pressures and temperatures, the UT319 series balances efficiency, durability, and versatility.
| Specification Category | Details |
|---|---|
| Flow Rate | Up to 380 lpm (100 US gpm) |
| Operating Pressure | Maximum 420 bar (6090 psi); Fatigue Pressure Rating: 380 bar (5510 psi) per NFPA T2.6.1 R2-2001 Cat C/85 |
| Port Size | 1 ¼" (options: SAE J514 straight thread, BSPP ISO 7/1, SAE J518C code 61 flange) |
| Temperature Range | -30°C to 130°C (-22°F to 266°F); 50°C (122°F) max in water-glycol blends |
| Fluid Compatibility | Petroleum oils, synthetic hydraulic fluids (ISO VG 10-68), water-oil emulsions, phosphate esters |
| Bypass Valve | Non-bypass (standard); Optional adjustable bypass (5-10 bard/73-145 psid) |
| Indicator Pressure Setting | 6 bard (87 psid) for differential pressure monitoring |
| Housing Materials | Ductile iron head (EN-GJS-400-15), carbon steel bowl, fluorocarbon (FKM) seals |
| Burst Pressure | 1500 bar (21750 psi) (housing); 190 bard (2755 psid) (filter element) |
| Element Type | Filtration Precision | Collapse Pressure | Nominal Length | DP Factor (psid/gpm) | Filtration Efficiency (βx(c) ≥2000 per ISO 16889) | Media Material |
|---|---|---|---|---|---|---|
| UT319-HP | 3 μm, 5 μm | 190 bard (2755 psid) | 10", 14" | 0.28 (10"), 0.22 (14") | 3 μm (β3≥2000), 5 μm (β5≥2000) | Glass fiber |
| UT319-HT | 10 μm, 20 μm | 190 bard (2755 psid) | 10", 14" | 0.21 (10"), 0.17 (14") | 10 μm (β10≥2000), 20 μm (β20≥2000) | Cellulose blend |
| UT319-AS | 5 μm (anti-static) | 190 bard (2755 psid) | 10", 14" | 0.26 (10"), 0.20 (14") | 5 μm (β5≥2000) + static dissipation | Anti-static glass fiber |
| Ordering Component | Options & Notes |
|---|---|
| Housing Part Numbers | UT319-A12TW (1 ¼" SAE J514, 10" length, non-bypass); UT319-C14UW (1 ¼" BSPP, 14" length, non-bypass); UT319-E12FW (1 ¼" SAE flange, 10" length, optional bypass) |
| Differential Pressure Indicators | Brass (visual: UT-IND-219D; electrical SPDT: UT-IND-219M); Stainless Steel (for >180 bar: UT-IND-719S) |
| Blanking Plug | UT-PLUG-004Z (required if no indicator is selected; replaces shipping plug) |
| Installation Requirements | 4 mounting holes (3/8" - 16 UNC, min depth 0.6"/15 mm); 80 mm (3.15") min clearance for element removal |
Ayater UT319 Filters excel in heavy-duty hydraulic filtration, precision manufacturing lubrication, mining equipment hydraulics, oil & gas pipeline systems, construction machinery fluid protection, and power generation auxiliary systems. Their anti-static options (UT319-AS) are ideal for flammable fluid applications, while the high-pressure tolerance and broad fluid compatibility make them a versatile choice for industries prioritizing equipment longevity and operational safety.
ISO 9001 & ISO 14001 certified manufacturing for consistent quality.
FKM seals ensure leak-proof performance in extreme temperatures (-30°C to 130°C).
Anti-static media variant eliminates static charge buildup in volatile fluid systems.
Modular port and length options enable seamless integration into existing setups.
Low pressure drop design reduces energy consumption while maintaining filtration efficiency.




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