CSDY1/CSDY2 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.
The valves can be used in high accuracy electric hydraulic control systems in various fields, like shipbuilding industry, aerospace and aeronautic industry, heavy industry, light and textile industry, as well as in the mechanical hydraulic servo system for agriculture machinery.
Characteristics:
CSDY1/CSDY2 represents the most advanced technology in electro hydraulic servo valve.
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) strong capability against pollution. 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: 2, 4, 8, 10, 15, 20, 30, 40L/min (Model CSDY2: 60, 80, 100, 120L/min)
8. Hysteresis: < 3%
9. Linearity: < 7.5%
10. Symmetry: 10%
11. Flow consumption at static state: < 0.45+3%Qn
12. Pressure gain: > 30%PS/1%
13. Threshold: < 0.25%
14. Bias: < 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
Jiujiang Zhongchuan Instrument Co., Ltd(441 Plant) is founded in year 1959, part of CSSC which specializes in producing navigation equipments as autopilot, gyrocompass, 15ppm bilge water alarm and steering engine & electro-hydraulic control servo valve.
We are a large manufacturer, with more than 1000 competent workers and nearly 600 excellent R&D team. Our business also covers nautical products and marine communication equipment as radios, marine sextant, and magnetic compass, etc.
Holding the belief that "quality the first, customer the highest", we are working to be the best supplier you want. Your trust, that's our goal! Your satisfaction, that's our job!
