Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd.
                                                                                                           
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German Made Moog Servo Valve for Industrial Hydraulic Systems with Standard Oil Usage and 280 Bar Max Pressure

Price Negotiable
Price: 2
MOQ: 1
Delivery Time: 2 weeks
Brand: MOOG
Product Description
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
MOOG D633K Series Industrial Hydraulic Servo Valve
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.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd.
Location Nan'an, Fujian Province, China
Contact Person liyun

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