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 is drained 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 and is limited in the interest of increased resolution and capacity. Flow capacity in the 2-to-3 direction is about 1.5 gpm (6 L/min). This valve is meant to be used in a circuit that has a separate passage to tank such as a cushion lock circuit. Two FMDAs in conjunction with a cushion lock circuit create a meter-in/meter-out 3-position 4-way.
- Note: Flow in the 2 to 3 direction is limited to about 1.5 gpm (5 L/pm).
- 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.
Notar: Los datos pueden variar según la configuración . Consulte la sección de CONFIGURATION
cavidad |
T-11A |
Series |
1 |
Capacity |
9 gpm34 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 and nut kit - Coil |
Viton: 990770006 |
Seal kit - Cartridge |
Buna: 990411007 |
Seal kit - Cartridge |
Viton: 990411006 |
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