Hydraulic Oil Precision Filter Tester

1. Applications

The hydraulic oil filtration unit is designed to purify and maintain the cleanliness of hydraulic and lubrication systems across various industrial applications. It is suitable for:

Refueling filtration during oil filling operations.

Bypass filtration of hydraulic and lubrication systems during operation.

Circulating filtration prior to system commissioning or after maintenance.

Removing contaminants when the original equipment pump cannot effectively filter the oil.

Note: This machine is not suitable for flammable or explosive media such as gasoline or fuel oils.

These application scenarios ensure extended equipment life, reduced system wear, improved operational reliability, and lower maintenance costs.

2. Standards

The system complies with commonly recognized hydraulic oil cleanliness and contamination codes:

GJB 420

NAS 1638

ISO 4406

Cleanliness Level: 18/16/13

Compliance with these standards ensures the filtration unit delivers industry-grade precision and reliable oil purification performance.

3. Components

3.1 Gear Pump Assembly

Low-noise gear pump with strong self-priming capability.

Ensures smooth and stable operation even under varying load conditions.

3.2 Protection & Safety System

High-pressure pipeline equipped with an overflow protection valve, safeguarding the hydraulic circuit from overpressure damage.

3.3 Multi-stage Filtration System

Coarse Filter (Suction Side):

Protects the pump from large contaminants, extending the life of the main filter.

Fine Filter:

Available in multiple filtration accuracies to meet diverse user requirements.

Differential Pressure Transmitters:

Installed on both pre-filter and fine filter for real-time monitoring of element clogging.

3.4 Monitoring Panel

Equipped with a pressure gauge providing continuous indication of system operating pressure and filter contamination level.

3.5 Cleaning & Replacement Design

Suction filter element can be removed and cleaned directly with gasoline.

Pre-filter and fine filter designed for quick disassembly and replacement through top-cover access.

3.6 Piping & Connections

Clean internal piping layout to prevent contamination accumulation.

Ensures stable flow and minimizes pressure losses.

4. Technical Parameters

Item	Specification
Working Pressure	0.6 MPa
Differential Pressure Alarm	0.2 MPa
Flow Rate	50 ± 5 L/min
Applicable Medium Viscosity	≤160 mm²/s (at 20°C)
Filtration Accuracy	5 μm
Rated Power	2.2 kW
Power Supply	3-phase 380 V
Frequency	50 Hz
Operating Temperature	20°C – 70°C

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