Pilot-Operated Proportional Valves for Analog Signals D680 Series
ISO 4401 SIZE 05, 07, 08 AND 10

The Moog D680 Series Proportional valve is now optionally available with a closed-loop controlled, D633 Direct Drive Valve as a pilot stage.The advantages of the new pilot stage option are a higher resistance against contamination, optimized dynamics and improved repeatibility. For more details, please refer to the updated product catalog.
Key features :
- Optimized design of valve bodies for high rated flow
- High energy efficiency due to D633 pilot valve with low internal leakage
- Low range of minimum pilot pressure required
- Integrated amplifier and control electronics for high functional flexibility
- Excellent dynamic response due to high natural frequency of pilot stage
- Different fail-safe options available allowing the best fit to application
- Optionally available: new pilot valve with integrated electronics and position control of the pilot valve
Specifications | D680 Series |
---|---|
Mounting pattern | ISO 4401 sizes 05, 07, 08 and 10 |
Hydraulic Data | |
Maximum operating pressure – port P, A, B | 350 bar (5,000 psi) |
Rated flow at ∆pN 5 bar (75 psi) per spool land | 30 to 1,500 I/min (7.9 to 396.3 gpm) |
Maximum flow | 3,600 I/min (751 gpm) |
Step response time for 0 to 100 % stroke | 9 to 40 ms |
Electrical Data | |
Supply voltage | 24 VDC (18 to 32 VDC) |
Rated signal options | +/-10 V, +/-10 mA and 4-20 mA |