- Removes trapped air for smooth hydraulic system start-up.
- Reduces cavitation and helps extend pump life.
- Durable, precision-built for reliable performance.
- Compatible with various hydraulic fluids.
- Easy to install on new or replacement systems.
- Ideal for industrial hydraulic applications.
- Provides dependable, long-lasting operation and improved system efficiency.
- Lead times for non-stocked items are generally 18-20 weeks. For urgent needs, please contact us to explore additional options.
The Yuken ST1004 Air Bleed Valve is engineered to quickly remove trapped air during hydraulic pump start-up, helping improve system efficiency, reduce cavitation, and extend pump life. Designed for installation near the pump discharge port, this hydraulic air bleed valve automatically releases air from the suction line and other hydraulic circuits for smoother operation. Compatible with mineral oils, synthetic fluids, and water glycol fluids, the ST1004 is ideal for industrial hydraulic systems requiring dependable air venting and consistent performance.
Specifications:
- Model: ST1004-5-10 / ST1004-10-10
- Product Type: Hydraulic Air Bleed Valve
- Maximum Operating Pressure: 25 MPa (3,630 PSI)
- Reseating Pressure: 0.15 MPa (22 PSI)
- Cracking Pressure: 0.34 MPa (49 PSI)
- Flow Rate to Reseating:
- ST1004-5-10: 5 L/min (1.32 US GPM)
- ST1004-10-10: 10 L/min (2.64 US GPM)
- Pump Output Flow Range:
- 20–75 L/min (5.28–19.8 US GPM)
- Over 75 L/min (19.8 US GPM)
- Approximate Weight: 0.2 kg (0.44 lb)
- Thread Options: Rc 3/8, 3/8 BSPF, or 3/8 NPT
- Dimensions:
- Length (B): 70 mm (Rc 3/8 & NPT) / 82 mm (BSPF)
- Width (C): 24 mm
- Compatible Fluids: Petroleum-based, synthetic phosphate ester, polyol ester, water glycol, water-in-oil emulsion
- Recommended Viscosity: 15–400 mm²/s
- Operating Oil Temperature: -15°C to +70°C
- Recommended Filtration: 25 microns or finer
Choose Yuken ST1004 Air Bleed Valve for dependable air removal and improved hydraulic system efficiency. Built for durability and precision, it helps protect pumps from air-related issues while ensuring smooth, reliable operation across a wide range of industrial applications. Whether you're replacing an existing valve or building a new hydraulic system, the ST1004 delivers long-lasting performance, easy installation, and trusted reliability. #AirBleedValve #Yuken #CascadeIndustrial
Lead times for non-stocked items are generally 18-20 weeks. For urgent needs, please contact us to explore additional options.
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