MOOG Servo Valve D638
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Product Details of MOOG Servo Valve D638
| Parameter / Feature | Specification / Detail |
|---|---|
| Valve design | 1-stage, sliding spool with bushing, direct drive by linear force motor |
| Mounting pattern | ISO 4401 – Size 03 (NG6) with or without leakage port Y |
| Rated flow (per land) at Δp = 35 bar | 5, 10, 20, or 40 l/min (≈ 1.3–10.6 gpm) depending on variant |
| Maximum flow | 75 l/min (≈ 19.8 gpm) |
| Maximum operating pressure (Ports P, A, B) | 350 bar (5,000 psi) |
| Step response (0 → 100%) | ~ 8 ms (typical) |
| Supply voltage | 24 VDC (18 to 32 VDC) |
| Command signal options | ±10 V, ±10 mA, 4–20 mA (analog) — plus optional fieldbus interface (e.g. CANopen, PROFIBUS, EtherCAT) |
| Integrated electronics & sensors | Built-in digital electronics, integrated pressure transducer (on A-port) for closed-loop control |
| Hydraulic fluid & environment | Compatible with mineral hydraulic oils (others on request); ambient operation typically –20°C to +60°C, oil temp up to ~80°C; designed for vibration/shock resistance per industrial standards. |