SUN HYDRAULICS
FMDATCN512
$253.40 USD
Tags:
- SUN HYDRAULICS
- Material:FMDATCN512
- Model:FMDA-TCN@512
- Summary:Cartridge
Quantity in stock: 0
The Sun Hydraulics FMDATCN512 (FMDATCN512) is a 3-way, meter-in, electro-proportional throttle valve designed for precise flow control in hydraulic circuits. In its unenergized state, the valve blocks supply at port 1 and drains port 2 to tank at port 3. When the coil is energized, it generates a closing force on the spool, creating a metering orifice from port 1 to port 2 that is proportional to the coil command current. This valve self-compensates in the 1 to 2 direction and can provide pressure-compensated flow control with an external compensator. The flow from port 2 to port 3 is limited to about 1.5 gpm (6 L/min) for improved resolution and capacity. It is suitable for use in circuits with separate tank passages, such as cushion lock circuits. By using two FMDA valves in conjunction with a cushion lock circuit, it can create a meter-in-meter-out configuration similar to a 3-position, 4-way valve setup. All ports can handle pressures up to 5000 psi (350 bar), making it robust for high-pressure applications. The manual override feature allows temporary actuation with specific force and stroke requirements. The solenoid tube diameter measures .75 inches (19 mm), and the valve incorporates Sun's floating style construction to minimize internal binding due to installation variations. For optimum performance, an amplifier with adjustable dither between 100-250 Hz should be used. The valve's design ensures minimal leakage and reliable operation across various conditions, offering accuracy within \u00b110%, set tighter during production testing for enhanced precision.
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 FMDA's 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).
- 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.
- 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.
- 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.
Cavity | 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 kit - Cartridge | Viton: 990-411-006 |
Seal and nut kit - Coil | Viton: 990-770-006Viton: 990-770-006 |
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