Oil Filtration Systems

Precision multi-stage Oil Filtration Systems achieve and maintain ISO 4406 cleanliness codes as tight as 14/12/9 — the standard demanded by high-pressure servo-hydraulic and turbine control systems — using validated Beta-ratio filtration rather than nominal micron-rating guesswork.

Oil Filtration Systems

Oil Filtration Systems Manufacturers

Engineering & Working Principle

Oil is drawn through progressive filtration stages (typically 10-5-3 micron absolute), with each stage rated by its Beta ratio ( Beta (x) > 200 per ISO 16889 multi-pass test) rather than nominal rating alone, guaranteeing actual particle capture efficiency of >99.5% at the rated micron size. Differential pressure transmitters trigger element-change alarms before bypass occurs.

Technical Specifications

Filtration range: 1–25 microns absolute (multi-stage configurations)
Beta ratio: Beta (x) > 200 per ISO 16889 multi-pass test method
Flow rate range: 10 LPM to 10,000+ LPM
Target cleanliness: ISO 4406 14/12/9 to 18/16/13 (application dependent)
Filter housing rating: up to 420 bar for high-pressure hydraulic service
Monitoring: Differential pressure transmitters, particle counters (optional inline)

Standards Compliance

ISO 4406, ISO 16889 (multi-pass test), NAS 1638 (aerospace/hydraulic equivalents)

Key Features

Validated Beta - ratio filtration, not nominal-rating guesswork
Inline laser particle counter integration (optional)
Duplex, switchable housings for zero-downtime element change
Skid-mounted, portable, or fixed installation
Compatible with mineral, synthetic, phosphate-ester, and fire-resistant fluids

Applications

Servo-hydraulic systems, steam and gas turbine lube/control oil, precision gearboxes, and high-pressure hydraulic power units.

Why It Outperforms Standard Systems

Most filtration systems are specified by nominal micron rating alone — a marketing number, not a performance guarantee. Ours are specified by validated Beta ratio per ISO 16889, the same rigor used by aerospace-hydraulic and turbine-control OEMs.

Benefits

Achieves and holds tight ISO cleanliness targets reliably
Reduces servo-valve and precision component failure
Extends oil change intervals, cutting disposal costs
Provides auditable cleanliness data for OEM warranty compliance

Need to Make An Enquiry

What does "Beta ratio" mean and why does it matter more than micron rating?

Beta ratio (?x), tested per ISO 16889 multi-pass method, is the ratio of upstream to downstream particle counts at a given micron size — a ?200 rating guarantees 99.5% capture efficiency at that size, unlike a nominal micron rating which is only an estimate.

What ISO cleanliness code should my hydraulic or turbine system target?

Servo-hydraulic and precision turbine control systems typically require ISO 4406 14/12/9; general industrial hydraulic systems are often fine at 18/16/13 — we size the filtration stages specifically to your required code.

Can I change filter elements without stopping the machine?

Yes — duplex, switchable filter housings allow you to divert flow to a standby filter chamber while replacing elements in the other, with zero interruption to oil supply.

What oil types are compatible with these filtration systems?

Mineral oils, synthetic oils, phosphate-ester fire-resistant fluids, and most industrial hydraulic and lubricating oils are all compatible — housing seals and media are selected based on your specific fluid type.

How do I know if my filtration system is actually meeting its target cleanliness?

Inline laser particle counters can be integrated to provide continuous, real-time ISO 4406 cleanliness code readings, rather than relying on periodic manual sampling alone.