Electro-proportional 3-way flow control valve, meter in assembly
Symbols
![](https://cmsimages.sunhydraulics.com/FM_B-M.gif)
![](https://cmsimages.sunhydraulics.com/symlm3_BJ.gif)
![](https://cmsimages.sunhydraulics.com/symlm3_BJ.gif)
Port Headings and Sizes [ + ]
Modifiers | Ports |
U9A, /10, /11, /S, /S3 | Ports A, B, P, T: SAE 8; |
Cartridge Technical Features [ + ]
This valve is a 3-way, meter-in, electro-proportional throttle. The flow path, unenergized, has the supply blocked at port 1 and port 2 connected to tank at port 3. Energizing the coil generates a closing force on the spool, creating a metering orifice in the 1 to 2 direction that is proportional to the coil command current. The valve self-compensates in the 1 to 2 direction and with the addition of an external compensator will provide pressure compensated flow control. Flow in the 2 to 3 direction is not proportional.
- The transition between positions is closed.
- Using 2 3-ways to create a 4-way allows one to choose existing flow ranges instead of cutting a special spool.
- These valves may be pressure compensated by an external, modulating, logic element. Use LR_C-XHN for a bypass circuit or LP_C-XHN for a restrictive circuit.
- The valve provides a degree of self-compensation and may be used as a flow control. To increase the accuracy of flow control, an external, modulating, logic element can be used to maintain a constant flow over a wider range of flows and pressures. See performance curves for additional information.
- All ports will accept 5000 psi (350 bar).
- Coils are interchangeable with Sun's other full flow, solenoid-operated valves and can be mounted on the tube in either direction.
- For optimum performance, an amplifier with current sensing and adjustable dither should be used. Dither should be adjustable between 100 - 250 Hz.
- On models equipped with the D or L control, the detent mechanism in the manual override is meant for temporary actuation. The D, E, L and T manual control assemblies have a mechanical life expectancy of approximately 7,000 cycles.
- The momentary/twist override option "E" allows the operator to shift the valve by twisting the manual override clockwise 90 degrees.
- Incorporates the Sun floating style construction to minimize the possibility of internal parts binding due to excessive installation torque and/or cavity/cartridge machining variations.
Cartridge Technical Data [ + ]
Note: Data may vary by configuration. See CONFIGURATION section.
Cavity | T-11A |
Series | 1 |
Capacity | 6 gpm23 L/min. |
Maximum Valve Leakage at 110 SUS (24 cSt) | 2 in³/min.@1000 psi30 cc/min.@70 bar |
Manual Override Force Requirement | 5 lbs/1000 psi @ Port 133 N/100 bar @ Port 1 |
Manual Override Stroke | .10 in.2,5 mm |
Solenoid Tube Diameter | .75 in.19 mm |
Valve Hex Size | 7/8 in.22,2 mm |
Valve Installation Torque | 30 - 35 lbf ft41 - 47 Nm |
Model Weight (with coil) | 1.10 lb0,50 kg |
Seal kit - Cartridge | Buna: 990411007 |
Seal kit - Cartridge | Viton: 990411006 |
Seal and nut kit - Coil | Viton: 990770006 |
Manifold Technical Data [ + ]
Body Type | Line mountLine mount |
Body Features | 4 way, combined ports 1 to P, ports 2 to A and B, combined ports 3 to tank4 way, combined ports 1 to P, ports 2 to A and B, combined ports 3 to tank |
Mounting Hole Diameter | .34 in.8.6 mm |
Mounting Hole Depth | ThroughThrough |
Mounting Hole Quantity | 22 |
Open Cavities | 22 |
Cavity | T-11A |
Port Size | SAE 8SAE 8 |
CAD Files [ + ]
Symbol File Formats
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CAD File Formats
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Notes [ + ]
- Please verify cartridge clearance requirements when choosing a Sun manifold. Different valve controls and coils require different clearances.
- Important: Carefully consider the maximum system pressure. The pressure rating of the manifold is dependent on the manifold material, with the port type/size a secondary consideration. Manifolds constructed of aluminum are not rated for pressures higher than 3000 psi (210 bar), regardless of the port type/size specified.
Additional Resources [ + ]
Highlights
- High Capacity Electro-Proportional Throttle Valve
- Our FLeX family of solenoid-operated valves is expanding
- Electro-Proportional Basics Explained
- CavitySaver multi-function valves deliver single-cartridge solutions
- Factory-tuned, optimized electro-hydraulics right out of the box
- Check Valves, Flow Control and Priority Flow Control Valves Technical Tips
- QuickDesign with SmartConnect Offers Drag-and-Drop Schematic Tool
- Sun Expands Corrosion-Resistant Solutions
- CANpoint XMD Configuration Software
- Sun Offers Zinc-Nickel Plating for Corrosion Resistance
- Putting Sun at the heart of hydraulic regenerative braking systems
- Standard Line Mount Manifolds for High Flow Valves
- Sun Cartridges with EPDM Seals
- Sun's New FLeX Series Solenoid Valves & Coils
- Sun's Proportional Valves Enable Meter-in and Meter-out in Motion Control Circuits
Technical Tips
- Proportional Amplifiers and Ancillary Products (2.06 MB)
- Manufacturing Sun Cartridge Cavities (522.27 KB)
- Solenoid Coils for Switching and Proportional Valves (975.2 KB)
Technical Information
- Electro-Hydraulic Terms and Definitions (2.94 MB)
- QuickDesign & SunDesign: Sun's 3- & 5-Axis Solutions
- Performance Data
- Cartridges: Materials of Construction
- Cavity Information (S-171) and Tooling
- Sun's Floating Style Screw-In Cartridge (1.06 MB)
- Manifolds: Materials of Construction
- Sun Model Code Explanation; 999-901-334 (343.9 KB)
- Fluid Recommendations: Oil Viscosity, Cleanliness & Temperature
- Custom Integrated Packages from Sun
- Units of Measure, Settings, and Conversions
- Removing Valves from Ductile Manifolds (73.96 KB)