Spool hydraulic directional control valve D661

hydraulically-operatedpilot-operatedelectro-hydraulic

Product overview
Moog valves of the D661 series are hydraulically piloted servo valves with integrated electronics and an analog interface. The D661 servo valves use spools sliding in a sleeve and are hydraulically piloted. This design delivers improved accuracy and excellent static and dynamic characteristics. The valves are engineered for demanding applications and provide high dynamic performance.

Features

• 2-stage valve with robust ServoJet® pilot
• Optimized valve body design for high nominal flow
• Enhanced ServoJet® pilot design for excellent dynamic response
• Multiple available fail-safe options for application-specific configuration

Specifications
Specifications — D661
Function — Flow control
Mounting — ISO 4401 Size 05 (NG10)
Hydraulic data — Nominal flow at ΔpN (Δ35 bar per edge): 20 to 200 l/min
Hydraulic data — Max flow: 250 l/min
Hydraulic data — Max operating pressure Ports P, A, B: 350 bar
Hydraulic data — Max operating pressure Port T with internal Y: 210 bar
Hydraulic data — Max operating pressure Port T with external Y: 350 bar
Step response 0–100% step — 6.5 to 18 ms
Electrical data — Supply voltage: 24 VDC (18 to 32 VDC)
Electrical data — Nominal signal options: ±10 V and ±10 mA
Electrical data — Electrical interface: 6+PE

Technical data / Specifications

• Model / Series: D661
• Valve type: 2-stage, hydraulically piloted with ServoJet® pilot
• Function: Flow control
• Mounting pattern: ISO 4401 Size 05 (NG10)
• Nominal flow at ΔpN (Δ35 bar per edge): 20–200 l/min
• Max flow: 250 l/min
• Max operating pressure (Ports P, A, B): 350 bar
• Max operating pressure (Port T with internal Y): 210 bar
• Max operating pressure (Port T with external Y): 350 bar
• Step response (0–100% step): 6.5–18 ms
• Supply voltage: 24 V DC (range 18–32 V DC)
• Nominal signal options: ±10 V and ±10 mA
• Electrical interface: 6+PE