Automated Filtration Systems for Hydraulic Oil
Whats/App: +86 156 1874 6768
Web: standard-groups.com
Standards
You can operate this device in compliance with international and domestic standards:
(1) GB/T 14039 — Hydraulic transmission: Code for solid particle contamination levels in hydraulic fluids;
(2) GB/T 18854 — Hydraulic transmission: Automatic particle counting method for liquid contamination measurement;
(3) ISO 4406 — Hydraulic fluid contamination: Coding of solid particle contamination levels;
(4) ISO 4407 — Hydraulic fluid contamination: Measurement of particle contamination using optical automatic counters;
(5) NAS 1638 — Aerospace hydraulic system contamination levels.
Parameters
| Item | Parameter |
|---|---|
| Rated Flow | 1–5 L/min, 10 L/min, 25 L/min |
| Applicable Medium | Lubricating oil, hydraulic oil |
| Medium Viscosity | ≤ 100 cSt |
| Operating Temperature | Ambient |
| Rated Working Pressure | 0.6 MPa |
| Original Pressure Drop | ≤ 0.08 MPa |
| Suction Filter Precision | 80 μm / 100 μm |
| Pre-Filter Precision | 10 / 15 / 20 / 40 μm |
| Fine Filter Precision | 3 / 5 / 10 μm |
| Achievable Oil Cleanliness | NAS 1638 ≥ 4. up to 0 |
Features
Compact design allows you to move and deploy the unit easily across multiple workstations.
High-performance gear pump and motor provide stable, low-noise, and vibration-free operation with strong self-priming ability.
Multi-stage filtration protects the pump, removes medium particles, and ensures fine particle removal for superior oil cleanliness.
Flexible filtration precision through interchangeable filter elements, meeting different equipment and cleanliness requirements.
Real-time monitoring via pressure gauges enables you to track system performance continuously.
Equipped with differential pressure alarms to alert you when filter replacement is needed.
Safety features include thermal relay, emergency stop, and independent oil-electric separation for reliable operation.
Accessories
(1) Gear pump and motor — provides system drive;
(2) Multi-stage filters — suction, pre-filter, fine filter;
(3) Pressure gauge — monitors system pressure;
(4) Differential pressure alarm — alerts when filters are clogged;
(5) Optional particle counter — measures NAS 1638 / ISO 4406 cleanliness levels;
(6) Optional temperature sensor — monitors oil temperature online;
(7) Optional high-efficiency filter — long-life, high-performance filter element;
(8) Consumable filter elements and seals for routine replacement.
Test Procedures
Connect the oil inlet and outlet to the designated hydraulic system bypass interface.
Start the device and establish stable circulation flow.
Monitor system pressure and oil condition while running the purification process.
Measure oil cleanliness using a particle counter or offline sampling analysis.
Continue operation until the target cleanliness level is reached.
Stop the device, close valves, disconnect pipelines, and complete purification.
Maintenance Information
Confirm the oil type, viscosity, and temperature comply with device requirements.
Inspect filter installation and pipeline connections before operation.
Monitor pressure and differential pressure alarms during operation.
Replace filters promptly upon alarm activation.
Use the emergency stop switch during maintenance or in case of abnormal operation.
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