MOOG Servo Valve Electro-Hydraulic
Product Details
D634-341C D664-4380K 075F130C 078F130C D062-512e 0514-950001 D661-4341C D633-460B 0514701443 0062-191C
Made in Germany, imported with original packaging
Specifications
| Nominal Diameter |
25cm |
Quantity |
88 units |
| Custom Processing |
Yes |
Imported |
Yes |
| Packing Specification |
31 |
Material |
Cast Iron |
| Place of Origin |
Germany |
Functional Purpose |
Building Materials Industry |
| Model |
D634-341C D664-4380K 075F130C 078F130C D062-512e 0514-950001 D661-4341C D633-460B 0514701443 0062-191C |
| Color |
Blue |
Packaging |
Boxed |
| Operating Temperature |
36°C |
Type |
Valve |
| Material Composition |
Steel Structure |
Contact |
WhatsApp: +85267220981 |
Product Image
Compatible Models
Original MOOG D634-319C, D634-341C, D634-501A, D634-514A, D634-E301B, D634E301B, D634E319B, D634E356B, D634Z510, D635K2009E, D638E120, D638E126, D641-163A, D641-194, D641-219, D641-351, D641-363, D642-284, D642-308, D642-505, D642-515A, D643-101, D643-319, D643-504, D643-508A, D644-308, D644-319, D644-519, D645-305, D645-403, D648-129, D651-129, D651-129B, D651-129D, D651-346A, D651-347B, D651-413, D651-413D-4, D651-416D-4, D651-461D, D651-471, D651-471D, D653-2709E, D656Z130, D661 UNIDENTIFIED, D661-1062E, D661-1718, D661-1962E, D661-2057, D661-205A, D661-318A, D661-363, D661-363A, D661-363D, D661-3702E, D661-4020B, D661-423A, D661-4491E, D661-450C, D661-450D-4, D661-473B, D661-4744, D661-4793, D661-515A, D661-5718, D661-5729, D661Z1718F, D661Z2742F, D661Z2743H, D661Z3726E, D661Z5604, D661Z6716, D661Z671C, D661Z736A, D662-1714G, D662-1942E, D662-2714E, D662-4348K, D662-5704, D662-580A, D662-5NC, D662-Z917G, D662E957A, D662Z4719B, D662Z902B, D663-1902E, D663-2709E, D663-344C, D663-344K, D663-363C, D663-4002, D663-5002, D663-814A, D663Z1713M, D663Z2706EF, D663Z270H, D663Z2770H, D663Z4712B, D663Z703G, D663Z954AB, D663Z954B, D663Z954C, D664-2708E, D664-375K, D664-519, D664-5302, D664-757A, D664E209C, D664Z1905F, D664Z4710B, D665-4007D, D665E5004, D682Z4706B, D682Z4709B, D682Z4809, D682Z4809G, D684E4715, D684Z4715B, D684Z47245, D684Z4724B, D684Z4733F, D684Z4815, D684Z4857G, D684Z4862
Frequently Asked Questions
How to maintain servo valves?
- Oil quality management: Use recommended fluids (e.g., phosphate ester fire-resistant oil) and maintain cleanliness per NAS 1638 Class 5 standards. Regularly check acidity and resistivity.
- Routine inspections: Test for electrical issues (e.g., coil resistance), clean filters, and check for loose components.
- Pre-startup checks: Ensure oil circulation before powering the valve to prevent clogging.
How to troubleshoot unstable operation (e.g., cylinder drift or oscillation)?
- Check servo valve resolution and zero zone stability.
- Inspect for internal leakage or spool wear.
- Verify control system parameters and calibrate zero bias if needed.
What if the valve doesn't move?
- Confirm electrical signals and coil connectivity.
- Check for spool sticking caused by debris in oil.
- Ensure correct startup sequence: oil flow before electrical power.
Can Moog servo valves be customized?
Yes. Models like the D636/D637 series support fieldbus interfaces and programmable electronics for application-specific tuning.
What specifications should I consider?
- Operating pressure: Up to 350 bar.
- Flow rate: 5-100 L/min (at Δp 35 bar).
- Voltage/current: Typically 220V, 1.5A.
- Mounting: Complies with ISO 4401 standards.
How to ensure long-term reliability?
- Use high-quality filters and maintain oil cleanliness.
- Avoid prolonged operation beyond rated temperatures.
- Schedule periodic professional servicing.
Where are Moog servo valves used?
Applications include aviation, aerospace, steel mills, power generation, and industrial automation.
For specific model details (e.g., G761-3004B or D661 series), refer to technical datasheets or contact authorized suppliers.
Note
This FAQ is based on general product information and common industry practices. Always consult official Moog documentation for valve-specific guidelines.
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