Vickers | SM4-1037514-20200-10
SM4-10(3.75)14-20/200-10
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The SM4-10(3.75)14-20/200-10 servo valve is built by Vickers and belongs to the Servo Valves series. It meters hydraulic flow to cylinders or motors in closed-loop automation circuits. The unit is supplied in Size 10, and it delivers a rated flow of 3.75 gpm (14 L/min) to control medium-capacity actuators. Electrical drive is provided by a 200 mA coil that has a resistance of 20 Ω, allowing direct connection to standard current drivers. Valve motion begins once input current reaches the 0.5 percent threshold of rated current, which supports fine position command. Dynamic behavior is confirmed by a 100 percent step response of 8 ms, a –3 dB frequency response of 110 Hz, and a 90-degree phase crossover at 150 Hz.
Supply lines may be regulated between 14 bar (200 psi) and 200 bar (3000 psi), ensuring compatibility with many industrial power units. For safety margins, the valve tolerates a proof pressure of 150 percent of maximum supply on the pressure port and 100 percent of maximum supply on the return port, while the return side withstands a burst pressure equal to 250 percent of maximum supply. Control accuracy is supported by hysteresis around null limited to 3 percent of rated current. The mounting port circle is 0.625 in, matching common subplates for size-10 hardware. Continuous service is permitted up to 135 °C (275 °F) fluid temperature, allowing installation in high-temperature manifolds without derating.
Technical Specifications
100% Step Response
8 ms
Burst Pressure Return
250% of max supply
Coil Rated Current
200 mA
Coil Resistance
20 Ohms
Frequency Response (-3 Db)
110 Hz
Frequency Response (90° Phase)
150 Hz
Hysteresis Around Null
3% (rated current)
Maximum Supply Pressure
200 bar (3000 psi)
Minimum Supply Pressure
14 bar (200 psi)
Mounting Port Circle
0.625 in
Proof Pressure Return
100% of max supply
Proof Pressure Supply
150% of max supply
Rated Flow
3.75 gpm (14 L/min)
Threshold
0.5% (rated current)
Valve Size
Size 10
Working Temperature Max
135 C (275 F)
1620 Old Apex Road
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