D664 Series Servo-Proportional Valve Products

Valve Construction:

A Two Stage Flow Control Proportional Valve with a D061 ServoJet?Pilot Stage.?An LVDT is attached to powerstage spool to provide spool position feedback.?An internal loop is closed around the spool position.?Spool ends are stubshafted.

The High Response version is a Three Stage Flow Control Proportional Valve with a D630 Two Stage Flow Control Servovalve as a pilot valve.?An LVDT is attached to powerstage spool to provide spool position feedback.?An internal loop is closed around the spool position.?br>

Typical Applications:

Plastic Industry - Ram Velocity and Pressure Control
Metal Industry - Coil Box Control, Metal Car Positioning

Technical Data- Standard:

• Port Pattern: ISO 4401 - 08 -07 - 0 - 94
• Rated Flow (@ 150 psi [10.5 bar]pressure drop): 145 gpm [550 l/min]
• Rated Flow (@ 1000 psi [70 bar] pressure drop): 374 gpm [1416 l/min]
• Operating Pressure: 5000 psi [350 bar]
• Step Response (@ 3000 psi [210 bar] for 100% stroke): 42 ms

Technical Data- High Performance:

• Port Pattern: ISO 4401 - 08 -07 - 0 - 94
• Rated Flow (@ 150 psi [10.5 bar]pressure drop): 145 gpm [550 l/min]
• Rated Flow (@ 1000 psi [70 bar] pressure drop): 374 gpm [1416 l/min]
• Operating Pressure: 5000 psi [350 bar]
• Step Response (@ 3000 psi [210 bar] for 100% stroke): 18 ms

Literature:

 D660 Series Servo-Prop. Control Valves with Integrated Electronics (12902Kb)

 D661-G....A Series Servovalve With Bushing and Integrated 24 Volt Electronics ISO 4401 Size 05 (593Kb)