Direct-Operated Servo-Proportional Valves for Analog Signals D936 and D937 Series

- Directly driven by a proportional solenoid
- 4/4-way design including failsafe position reduces need for additional safety components
- Fully hardened spool and bushing provides high accuracy and wear resistance
- Electronics mechanically uncoupled from housing allows for high vibration resistance for longer service life and less machine downtime
- Next-generation electronics with digital core and energy efficient components lead to low thermal stress and long electronics lifecycle
- Optimized overlaps and clearances between spool and bushing deliver low internal leakage and high contamination resistance
- Electronics placed on the solenoid delivers compact design for minimum installation space
Specifications | D936 | D937 |
---|---|---|
Mounting Pattern | ISO 4401 Size 03 | ISO 4401 Size 05 |
Hydraulic Data | ||
Maximum operating pressure – port P, A, B | 350 bar (5,000 psi) | |
Rated flow at ∆pN 35 bar (500 psi) per spool land | 4 to 40 I/min (1.06 to 10.6 gpm) | 50 or 100 I/min (13.2 to 26.4 gpm) |
Step response time for 0 to 100 % stroke | ≤ 11 ms | ≤ 18 ms |
Electrical Data | ||
Supply voltage | 24 VDC (18 to 32 VDC) | |
Rated signal options | +/-10 V, +/-10 mA and 4-20 mA |
Product Service & Repairs
Literature
Catalog - D936 and D937 Servo-Proportional Valves
Datasheet - D936 Servo-Proportional Valves
Datasheet - D937 Servo-Proportional Valves
Installation Drawing - D936 Servo-Proportional Valves
3D Model File Download - D936 Servo-Proportional Valves
3D Model File Download - D937 Servo-Proportional Valves
Installation and commissioning instructions - D936 and D937 Servo-Proportional Valves
Typical Applications
- Plastic Machinery
- Die Casting
- Metal Forming and Presses
- Heavy Industry
- Gas Turbines
- Steam Turbines
- Wood Industry (Mobile/Stationary)
- Test Benches
- Marine
- Mobile Applications / Concrete Pumps