II. Model Interpretation

APRB: Series of Direct-Acting Pressure Reducing Valves

02: Nominal Diameter NG6 (Specification 02)

02: Standard Pressure Rating (250 bar)

FW: F = Flanged Installation; W = Built-in Fixed Overflow Valve (Safety Protection)

III. Function and Positioning

Core Function: System Pressure Reduction + Pressure Stabilization + Safety Overflow, reducing the high-pressure oil circuit (e.g. 250 bar) to the low-pressure branch circuit (e.g. 50–100 bar), with reverse overflow protection for downstream loads

Positioning: Industrial-grade Compact Pressure Reducing Module, targeted at hydraulic systems with limited space (such as machine tools, automated fixtures, small hydraulic stations), featuring small size, high integration, low leakage, and fast response

Features: Overlapping Installation (No Need for Pipelines), Direct-Acting Design (Fast Response), Built-in Overflow (Safety Redundancy), Low Leakage, Compatible with Mineral Oil

IV. Core Performance Parameters (Standard Values)

Nominal Diameter: NG6 (6 mm)

Maximum Inlet Pressure: 250 bar

Export Pressure Regulation Range: 5–160 bar (Factory Default 70 bar)

Rated Flow: 20 L/min

Overflow Pressure: Export Pressure + 10 bar (Fixed)

Leakage: ≤ 15 Drops/min (Low Pressure Side)

Medium: HLP Mineral Hydraulic Oil (DIN 51524)

Oil Temperature Range: -20 ℃ to +80 ℃

Installation Method: Overlapping Plate Type (Flanged Installation, IM B5)

Protection Level: IP65 (Valve Block)

Sealing Material: NBR (Nitrile Butadiene Rubber)

Response Time: ≤ 15 ms

V. General Adaptable Accessories

Overlapping Valve Base: NG6 Standard Overlapping Block (G1/4 Oil Port)

Installation Bolts: M6 High-Strength Bolts (8.8 Grade, Torque 9–10 Nm)

Sealing Kit: NBR Sealing Ring (Compatible - 20 to +80 ℃)

Pressure Gauge: 0–250 bar Pressure Gauge (G1/4 Interface)

Optional Accessories: External Pressure Regulating Handwheel, Overflow Pressure Adjustable Kit, Stainless Steel Sealing (High Temperature / Special Medium)

VI. Application Fields

CNC Machine Tools: Machining Center Hydraulic Fixtures, Tool Storage Drive, Tailstock Control

Automation Equipment: Robot End Effector, Pneumatic Hydraulic Workstation, Clamping Unit

Small Hydraulic Stations: Portable Hydraulic Units, Test Bench Hydraulic Systems, Low-Pressure Power Modules

Construction Machinery: Light-duty Excavators, High-altitude Work Platforms, Hydraulic Tools

General Machinery: Injection Molding Machine Auxiliary Oil Circuit, Packaging Machinery, Woodworking Machinery Hydraulic Speed Control Unit