Core parameters (Δp = 35 bar)

Rated flow rate: 60 L/min. Moog Inc.

Working pressure: 280 bar continuous / 315 bar peak; Valve body withstands 350 bar. Moog China

Frequency response: −3 dB ≈ 220 Hz

Hysteresis: <0.5% (closed loop)

Zero drift: <0.5%/40°C

Power supply: 24 Vdc (18–32 Vdc), built-in EMC enhanced amplifier

Control signal: ±10 V or 4–20 mA

Feedback: LVDT valve core position closed loop (4–20 mA or 2–10 V output)

Sealing: NBR (−29℃ to +135℃)

Protection: IP65 (EMC enhanced, resistant to strong interference)

Weight: Approximately 2.2 kg

Key differences from previous models (8310/8312)

8322: 6 cores + PE, LVDT closed loop, special throttling, EMC enhanced → High precision + Strong interference + Low leakage

8312: 6 cores + PE, LVDT closed loop, standard throttling → Standard high precision

8310: 4 cores, open loop, standard throttling → General basic model Structural features

Two-stage servo + ServoJet jet pipe pilot: Anti-pollution, long service life

Integrated 24V drive + LVDT closed loop + EMC enhancement: No need for external amplifier, high closed-loop accuracy, strong anti-interference

Special throttling design: Lower zero-point leakage, better stability, suitable for long-term steady-state conditions

Typical applications

Injection molding / die casting: Closed-loop flow / pressure control (high precision + strong interference environment)

Metallurgy: Rolling mill tension control, sheet thickness control (high EMC requirements)

Material testing: Fatigue test, static loading (high repeatability + low leakage)

Precision machine tools, robots: Electro-hydraulic position / speed closed loop (industrial strong electric environment)