Jet Pipe Electro Hydraulic Servo Valve(CSDY)

Jet Pipe Electro Hydraulic Servo Valve
Robust structure
Stable zero
High contamination resistance
Long working life

CSDY electro-hydraulic servo valve is the latest product among the electro-hydraulic servo valves in the world. It adopts dry-type torque motor, wholly welded, jet pipe and main slide valve which are flow control valves with high capability in 2-way direction. It can receive weak electric signal and convert the signal into hydraulic power amplification. The output flow is proportional to the control electric signal.

 

Characteristics

1)Robust structure. The valves can withstand class I vibration, class I shock and impact of 400g acceleration.

2)Stable zero. The stability of zero is better than that of dual jet plate valve and the valves are more reliable.

3)High resolution.

4)High contamination resistance. They can use 7-8 hydraulic oil of 7-8 NAS1638.

5)Long working life. They can be used for more than 107 times(about 5000 hours per time).

6)High control accuracy.

 

Main Technical Index

1.Type CSDY1-2/4/8/10/15/20/30/40(CSDY2-60/80/100/120)

2. Rated current ±8mA

3. Resistance of coil 1000±100Ω

4. Insulation resistance >50MΩ

5. Rated pressure 206×105Pa

6. Operation pressure (20-309)×105Pa

7. Rated flow Qn2/4/8/10/15/20/30/40L/min (Model CSDY2:60/80/100/120)

8. Hysterisis < 3%

9. Linerity < 7.5%

10.Symmetry: 10%

11.Flow consumption at static state < 0.45+3%Qn

12.Pressure gain > 30%Ps/1%

13.Resolution < 0.25%

14.Zero offset < 2%

15. Zero drift 2%

16.Frequency response (-3db) >70Hz (-90°) >90Hz

17.Temperature range -40C--+85C

18.Fluid dynamic viscosity 10-100cst

19.Filter accuracy for system 10-20u