Precision Filter Elements – Models TR-20000 · TR-20230 · TR-20330

Three high-performance precision filter elements engineered for fine particulate filtration and moisture control in hydraulic oil, lubricating oil, and water-glycol (WG) fluid circuits. TR-20230 and TR-20330 belong to the M-Series – absolute 2 µm elements optimized for hydraulic oil and systems demanding the best possible particle filtration, achieving cleanliness levels of NAS 6 / ISO 16/14/12 or better . TR-20000 belongs to the 75WG-Series – a two-stage element with M-filter medium in the upper section and X-filter medium in the lower section, separated by a non-woven disc to protect the lower part in case of excessive water, specifically designed for water-glycol fluids .

Key Features

• Absolute 2 µm filtration – M-Series rated β₂ > 200, β₃ = 949; delivers NAS 6 cleanliness in hydraulic circuits

• Two-stage build (TR-20000) – M-medium upper section captures particulates; X-medium lower section provides additional particle removal and water handling; non-woven disc isolates stages against water overload

• Deep-bed gradient structure – axial flow creates a 114 mm thick filter buildup; big particles retained on top, smaller particles captured in the upper non-compressed section, finest particles trapped in the lower compressed section

• Cellulose-based composite media – special cellulose material absorbs water, sludge, varnish, and oxidation residues from industrial oils

• Compact 114 mm element height – fits BU-series, SE-series, AL-series, and OSCA SU/SS filter housings

• Bypass-free design – no independent power source required; does not affect main system pressure

• High dirt-holding capacity – deep-layer structure maximizes contaminant retention

Technical Specifications

📌 Functional distinction: TR-20230 and TR-20330 are precision particle filters for hydraulic oil, rated absolute 2 µm with β₃ = 949, delivering NAS 6 cleanliness . TR-20000 is a two-stage element for water-glycol fluids – the M-medium handles particulates in the upper section while the X-medium in the lower section provides additional particle removal, with a non-woven disc protecting the lower stage against water overload . The three models are not interchangeable – select per fluid type and host housing.

Application Guidance

TR-20230 & TR-20330 – Deployed on:

• Hydraulic power units requiring best possible particle filtration

• Industrial oil conditioning systems targeting NAS 6 / ISO 16/14/12 cleanliness

• BU-series, SE-series, AL-series, and OSCA SU/SS filter housings

• Machine tools, presses, injection molding machines, and steel mill hydraulic circuits

TR-20000 – Deployed on:

• Water-glycol (WG) fluid circuits – BU100/200/300EW, SE100WG to SE600WG, AL100WG, OSCA AL-WG series

• Systems where excessive water presence demands staged protection

• The non-woven disc separator prevents lower X-medium saturation when water content spikes

Why Precision Filtration Matters

Contamination is the primary root cause of hydraulic system failures. These elements address the full contaminant spectrum:

• Solid particles – deep-bed gradient structure captures big particles at the top, finer particles deeper in the media

• Water – special cellulose material absorbs moisture; TR-20000's two-stage build adds dedicated water handling

• Sludge, varnish, oxidation residues – cellulose media adsorbs degradation byproducts that conventional glass-fiber elements miss

The 114 mm thick axial filter buildup – combined with the compressed lower section – creates a unique three-zone capture profile unmatched by standard pleated cartridges .

Fluid Compatibility

• Mineral hydraulic oil (ISO HM, HV) – TR-20230, TR-20330

• Water-glycol fluids (HFC) – TR-20000 (specifically engineered)

• Industrial lubricating oils – all three models

• Synthetic hydraulic fluids – verify media compatibility

⚠️ TR-20000 is specifically designed for water-glycol fluids with its two-stage M + X media configuration . Do not substitute TR-20230 or TR-20330 in WG service – they lack the staged water-protection architecture. Conversely, TR-20000 is optimized for WG fluids and is not the primary choice for mineral oil hydraulic circuits where TR-20230/TR-20330 deliver superior NAS 6 cleanliness.

Installation & Service

1. Shut down the equipment; isolate the filter housing from system pressure.

2. Open the housing cover; withdraw the spent element.

3. Inspect the housing interior – check for sludge accumulation at the bottom, which indicates the need for reservoir cleaning.

4. Seat the new element vertically – confirm correct orientation (axial flow top-to-bottom).

5. Close the housing; torque fasteners evenly per specification.

6. Restart the system; monitor differential pressure.

7. Service interval: typical service life approximately 2,600 operating hours; replace 2–3 elements per year under normal duty – no system shutdown required thanks to bypass-free design .

8. Elements are disposable – the cellulose composite media cannot be effectively cleaned; always replace with new.

💡 The bypass-free, no-independent-power design means replacement can be performed without stopping the main system – significantly reducing maintenance downtime cost.

Quality Assurance

• ISO 16889 – Multipass filtration performance (β-ratio verification: β₂ > 200, β₃ = 949 for M-Series)

• Cleanliness validation – NAS 6 / ISO 16/14/12 or better achievable in hydraulic circuits

• Media integrity – 114 mm thick axial buildup ensures structural stability under flow

• Water-handling verification (TR-20000) – non-woven disc separator validated for excessive water conditions

Ordering

Specify the model – TR-20000 (WG fluids, two-stage) / TR-20230 (Ø104 × 114 mm, M-Series) / TR-20330 (Ø143 × 114 mm, M-Series) – together with:

• Fluid type (mineral hydraulic oil / water-glycol / lubricating oil)

• Required cleanliness target (NAS 6 / ISO 16/14/12 standard)

• Host filter housing model (BU / SE / AL / OSCA SU-SS series)

• Element dimensions confirmation: OD × 114 mm height

• Operating temperature and pressure of the circuit

Provide your existing element's dimensions or the host filter housing model for cross-reference confirmation. Custom configurations are available on request.

All values nominal; TR-20230 (Ø104×114 mm) and TR-20330 (Ø143×114 mm) are M-Series absolute 2 µm precision filter elements for hydraulic oil, rated β₂ > 200, β₃ = 949, achieving NAS 6 / ISO 16/14/12 or better cleanliness . TR-20000 (Ø179×114 mm) is a 75WG-Series two-stage element with M-medium upper section and X-medium lower section separated by a non-woven disc, specifically designed for water-glycol fluids with excessive water protection . All three models feature 114 mm element height, deep-bed gradient cellulose media that captures particles, water, sludge, and oxidation residues from industrial oils. Typical service life ~2,600 hours; 2–3 replacements per year; bypass-free design enables replacement without system shutdown. Compliant with ISO 16889 β-ratio testing. Select per fluid type: TR-20230/TR-20330 for hydraulic oil fine filtration; TR-20000 for water-glycol service. Elements are disposable.