II. Core Parameters (Single-Port Version) of D633-362A

Installation: NG6 (ISO 4401-03)

Flow Rate: 75 L/min @ Δp = 35 bar (Peak)

Pressure:

P/A/B: 350 bar

T Port: 350 bar (with Y port, high-pressure return oil)

Frequency Response: 120–150 Hz (High Frequency Mode)

Sealing: HNBR (−30 to +100℃, high temperature / harsh oil)

Hysteresis: <0.2%

Resolution: <0.1%

Drive: 24VDC (18–32V), ±10V / 4–20mA

Feedback: Built-in LVDT Valve Core Position Closed-loop

Neutral Position: Standard O-ring (Three-way Four-Position Fully Closed)

One Sentence: D633-362A = NG6 + 75L/min High Flow Rate + 350bar Full Flow (Including T Port High-Pressure Return Oil) + High Frequency 120–150Hz + HNBR Wide Temperature Sealing

III. Key Differences from the Previous D633-333B (Most Important) Table

Project D633-333B D633-362A

Flow rate 75 L/min 75 L/min

Frequency response Standard 60–90 Hz High frequency 120–150 Hz

Y port / T port pressure No Y port, T ≤ 50 bar With Y port, T = 350 bar (high-pressure return oil)

Sealing / Temperature NBR, -20 to +80℃ HNBR, -30 to +100℃ (high temperature / anti-aging)

Model suffix B A

Conclusion: 362A is the upgraded version of 333B with "high frequency + high pressure return oil + high temperature sealing".

Four, Typical Application Scenarios

75 L/min high flow rate + high frequency response (120–150Hz)

T port high-pressure return oil (350bar), must have Y port

High-temperature conditions (>80℃) or harsh oil (HNBR anti-aging / chemical resistance)

High-speed presses, dynamic test benches, vibration tables, die-casting machines, precision closed-loop systems requiring high frequency + high flow rate + high-pressure return oil