I. Explanation of Model Numbers

D632: D632 two-stage nozzle flap proportional valve (high pressure, high flow version)

101: Flow code 10 = 38 L/min (Δp = 10 bar); 1 = internal pilot + standard valve core

B: Form A25 installation surface + NBR (nitrile rubber) seal (-20 to +95°C)

Sentence: D632-101B = 38L/min high flow + internal pilot without external connection + A25 large installation surface + NBR standard seal + 280 bar high pressure proportional valve

II. Core Parameters (Δp = 10 bar)

Rated flow: 38 L/min

Maximum pressure: 280 bar (D632 high pressure version)

Hysteresis: ≤ 5% (typical of proportional valve)

Resolution: ≤ 1%

Zero leakage: ≈ 2.0 L/min (70 bar)

Pilot method: internal pilot (no Y port required)

Sealing / Temperature: NBR (-20 to +95°C)

Coil parameters: 28Ω, ±100mA, 0.14W low power consumption

Filter: NAS 7 / ISO 4406 15/12

III. D632 101B vs 022A (Comparison of flow rates) Table

Parameters: D632-101B, D632-022A (previous model)

Flow rate: 38 L/min, 7.6 L/min

Installation surface: A25 (large), A10 (small)

Maximum pressure: 280 bar, 280 bar

Zero leakage: ≈2.0 L/min, ≈1.0 L/min

Weight: Approximately 3.5 kg, approximately 2.2 kg

Applications: High-flow hydraulic presses, injection molding main cylinders, synchronous systems; small-flow auxiliary cylinders, testing machines, clamping systems

In one sentence: 101B is the "main force" of D632 with high flow rate (38L), large installation surface (A25), and universal high pressure.

Four. Application scenarios (D632-101B)

Closed-loop control of high flow rate: large hydraulic presses, injection molding main cylinders, die-casting machines

Synchronous control: multi-cylinder synchronous lifting, large platform leveling, metallurgical roll gap control

High-pressure conditions (≤280 bar), standard oil temperature (−20 to +95℃)

Budget-sensitive, no need for servo-level accuracy (≤5% hysteresis acceptable)

Large installation surface A25, high flow rate requirement, simplified internal pilot oil circuit