MOOG D633K Series Industrial Hydraulic Servo Valve
Product Models
D633K2040B, D633K2041B, D633K2042B, D633K2043B, D633K2044B, D633K2045B, D633K2046B, D633K2047B, D633K2048B, D633K2049
Product Specifications
| Specification |
Value |
Specification |
Value |
| Nominal Diameter |
25cm |
Customized Processing |
Yes |
| Quantity |
88 units |
Imported |
Yes |
| Packing Specification |
31 |
Material |
Cast Iron |
| Place of Origin |
Germany |
Functional Purpose |
Building Materials Industry |
| Category |
1 |
Color |
Blue |
| Packaging |
Boxed |
Operating Temperature |
36°C |
| Dimensions |
30*40*70 |
Type |
Valve |
| Component Material |
Steel Structure |
Contact |
WhatsApp: +85267220981 |
Related Models
D661-1727E, D661-1729E, D661-1730E, D661-188D-4, D661-188D-5, D661-1901E, D661-1906E-4, D661-1907E-4, D661-1907E-7, D661-1912E, D661-1913E, D661-1915E-6, D661-1918E, D661-191D-5, D661-1924E, D661-1925E P80HDAAFNVB0, D661-1926E, D661-1927E-4, D661-192D-5, D661-1931E, D661-1932E, D661-1933E-4, D661-1933E-6, D661-1937E-4, D661-1937E-6, D661-1940E, D661-1942E, D661-1943E, D661-1945E-4, D661-1945E-6, D661-1946E, D661-1954E, D661-1955E, D661-1957E, D661-1960E, D661-1962E, D661-1963E, D661-1964E, D661-1965E, D661-1966E, D661-212D, D661-213C, D661-214D, D661-220A, D661-246A, D661-2503/H30KOGMJNSF2, D661-312A, D661-312A-4, D661-318B-5, D661-318D-4, D661-318D-5, D661-319D, D661-323D, D661-324D, D661-326D, D661-344A, D661-350A, D661-351A-4, D661-351A-5, D661-353B, D661-360D, D661-364B-5, D661-369D, D661-371D, D661-386A, D661-393D, D661-4008 to D661-4119E series
Product Image
Technical Information
Common Failure Modes
- Spool Amplifier Stage Issues:
- Spool Sticking: Caused by contaminated oil or deformed spool, resulting in distorted response or complete seizure
- Cutting Edge Wear: Increases internal leakage, causes null shift, and reduces stability
System-Level Symptoms
- Cylinder Refusal to Move: Often due to stuck servo valve
- Uncontrolled Valve Movement: Sudden full opening/closing without command change, often due to clogged nozzle
- Cylinder Oscillation ("Cylinder Hunting"): Caused by high internal leakage, poor resolution, or instability in valve's null zone
- High Cylinder Lag
Maintenance Guidelines
- Oil Filtration: Use high-quality filters and adhere to strict oil analysis and replacement schedule
- System Design: Minimize dead spots where contaminants can accumulate
- Regular Inspection: Check for leaks, unusual noises, or performance changes
- Preventive Maintenance: Follow manufacturer's recommended intervals, including internal filter replacement
Purchasing and Services
- Custom Solutions: MOOG can modify components to enhance performance or meet specific requirements
- Documentation: Detailed test reports provided with new valves or after professional repair
- Technical Support: Available through MOOG or authorized distributors worldwide
For inquiries, please provide complete valve model number (e.g., G761-3003B) and part number for accurate assistance.
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