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JASC
Three-Way Pressure Controlled Servo Valve
(click for larger image) |
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JASC
Three-Way Servo Valve Description
The three-way high flow single stage pressure compensated servo
valve delivers a precise cylinder pressure as a function of
torque motor current. This unit is designed to operate on turbine
oil, hydraulic fluid, diesel oil, jet fuel or stoddard solvent.
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Design
Features and Benefits
*3-Way Operation
*Pressure Feedback from Cylinder Port
*Permanent Magnet Torque Motor
*Low Hysteresis and Threshold
*Low Electrical Power Consumption
*Dry Coil Torque Motor |
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Construction
Materials
*High Nickel-Iron Magnetic Path for Low magnetic Hysteresis
*Aluminum Alloy Housing for lightweight
*Fluorosilicone Static Seals (other seal materials available
for specific applications |
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JASC
Three-Way Pressure Controlled
Servo Valve Internals |
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Specifications
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Fluid
Medium(s): Turbine Oil, Jet Fuel, Diesel, Red Oil
Supply Pressure:
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Operating:
250 PSIG Normal, 600 PSIG cold day transient
Proof:
900 PSIG
Burst: 1500 PSIG
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| Return
Pressure: |
Operating: 10 PSIG Max
Proof: 900 PSIG
Burst: 1500 PSIG
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Electrical
Rated Current @ 0 to 125mA
Min. Flow: 1.25 GPM @ control port with P-125 PSIG;
R=0 PSIG using 60 CS fluid
Pressure
Gain: 2.0±0.2 PSID/mA with P=250 PSIG; R=0 PSIG
& Control Port Blocked
Null Leakage: 0.35 GPM max.
Hysteresis: 5% max of rated output pressure
Temperature Range: –65 °F to +300
°F to be sensed by an RTD with a temp. coeffiecent of .00385
O/O/°C
Frequency Response: An amplitude ratio drop
is not to exceed 3 DB @ 20 Hz input signal & 1000 C.S. fluid
with blocked control pressure port. |
