Hydraulic Oil Filter Element – Model HY-18286

A high-performance replacement hydraulic oil filter element engineered for return-line, suction-line, and medium-pressure circuit duties across hydraulic power units, mobile equipment, compressor lube systems, and industrial machinery. Built around a high-efficiency micro-glass fiber media pack qualified to ISO 16889 multi-pass testing, the element delivers an absolute-rated performance of β₁₂ = 1000 — capturing 99.9 % of particles at 12 µm and above . With a compact envelope of 45 mm OD × 86 mm length × 25.4 mm ID and a 210 bar max. differential pressure rating , HY-18286 is ideally suited to space-constrained filter heads on construction machinery, agricultural equipment, and auxiliary hydraulic loops where high dirt-holding capacity must be achieved in a small form factor.

Key Features

• Micro-glass fiber media — high tensile strength, temperature-resistant, corrosion-proof, non-combustible

  
  

• β₁₂ = 1000 per ISO 16889 multi-pass — 99.9 % efficiency at 12 µm, delivering ISO 4406 cleanliness control for piston pump and servo-valve protection

  
  

• Compact pleated construction — 45 mm OD × 86 mm length × 25.4 mm ID; 3.4 m² effective filtration area in folded configuration

  
  

• Max. differential pressure 210 bar — collapse-rated for pressure-line duty

  
  

• NBR seal standard — -25 °C to +120 °C operating range

  
  

• Gradient-density media structure — high dirt-holding capacity with low initial ΔP

  
  

• Fiber stability — even under intense vibration, media fibers will not shed into the hydraulic circuit

  
  

• Laser-cut and laser-welded — precise dimensional accuracy, leak-tight seams

  
  

Technical Specifications

* Micron grade, media type (glass-fiber / filter paper / stainless steel wire mesh), end-cap material (carbon steel / stainless steel / aluminum / nylon), and seal compound are configurable per application .

Application Guidance

HY-18286 is deployed as a return-line, suction-line, and pressure-line element on:

• Construction machinery — excavators, wheel loaders, backhoe loaders

  
  

• Agricultural equipment — tractors, harvesters, hydraulic implements

  
  

• Compressor lube circuits and screw compressor oil conditioning

  
  

• Industrial hydraulic power units, injection molding machines, press brakes

  
  

• Mobile hydraulic equipment — cranes, aerial work platforms, fork lifts

  
  

• Marine hydraulic systems — deck machinery, steering gears

  
  

Select micron grade by circuit position:

• Servo / proportional valves: 1–5 µm (βₓ ≥ 1000)

  
  

• High-pressure piston pumps, industrial hydraulic stations: 5–10 µm

  
  

• Vane / gear pumps: 10–20 µm

  
  

• Return line / general hydraulic: 10–25 µm

  
  

• Suction line: 100–180 µm coarse (stainless steel mesh) — protects pump without cavitation risk

  
  

Target ISO 4406 oil cleanliness by circuit position:

• Servo valves: 16/14/12 → requires 3–5 µm filtration

  
  

• Piston pumps/motors: 18/16/14 → requires 10 µm filtration

  
  

• Vane/gear pumps: 19/17/14 → requires 10–20 µm filtration

  
  

⚠️ Over 70 % of hydraulic system failures originate from fluid contamination. Matching the correct micron grade and β-ratio is the single most cost-effective maintenance decision. Verify the bypass valve setting matches your housing — an incorrectly calibrated element allows unfiltered oil to circulate, causing component wear. The 210 bar collapse rating  makes HY-18286 suitable for pressure-line duty; for suction-line applications, select a coarser micron grade (≥100 µm) to avoid pump cavitation.

Fluid Compatibility

Validated per ISO 2943:

• Mineral hydraulic oil (ISO HM, HV, HH, HL) — NBR seals standard

  
  

• Synthetic hydraulic oil

  
  

• Mineral turbine / gear / compressor lube oil

  
  

• Biodegradable esters (HEES, HETG) — use FKM seals

  
  

• HFC water-glycol — NBR acceptable; FKM recommended

  
  

• Phosphate ester (HFDR) — FKM seals mandatory

  
  

• Not for strong solvents or corrosive chemicals

  
  

Installation & Service

1. Shut down the equipment; relieve system pressure to 0 bar and isolate the filter housing.

   
   

2. Open the housing cover, withdraw the spent cartridge by its center tube.

   
   

3. Inspect the housing interior, bypass spring (if fitted), and seal grooves. Check the spent media for metal particles — copper or iron debris indicates pump/valve damage; rubber fragments signal seal failure.

   
   

4. Seat the new element — confirm flow direction (Outside → Inside). Renew all O-rings / seals.

   
   

5. Close the housing, torque bolts evenly. Bleed air at the bleed port.

   
   

6. Restart and gradually ramp up to working pressure — never open the valve instantly to full flow.

   
   

7. Replace per clogging indicator or service interval — typical 2000 operating hours in moderate contamination; 250–500 hours in foundry, mining, or marine heavy-duty environments.

   
   

8. Glass-fiber elements are disposable — never attempt to clean; only stainless steel wire mesh media can be washed and reused. A clogged element left in service triggers the bypass valve, allowing unfiltered oil to circulate.

   
   

Quality Assurance

• ISO 16889 – Multi-pass filtration performance (β-ratio, dirt-holding capacity, ΔP)

  
  

• ISO 2941 – Collapse/burst resistance (validated to 210 bar)

  
  

• ISO 2942 – Manufacturing integrity (bubble point)

  
  

• ISO 2943 – Media/fluid compatibility

  
  

• ISO 3723 – End-load compliance

  
  

• ISO 3724 – Flow fatigue under cyclic differential pressure

  
  

• ISO 3968 – Differential pressure vs. flow-rate characteristics

  
  

Ordering

Specify HY-18286 (45 mm OD × 25.4 mm ID × 86 mm length, micro-glass fiber, β₁₂ = 1000) together with:

• Required micron rating (1 / 3 / 5 / 10 / 15 / 20 / 25 / 40 / 80 / 100 / 150 / 200 µm)

  
  

• Media type (micro-glass fiber / filter paper / stainless steel wire mesh)

  
  

• Seal material (NBR standard / FKM for phosphate-ester)

  
  

• End cap material (carbon steel / stainless steel / aluminum / nylon)

  
  

• Bypass configuration (without / 1.0 bar / 2.5 bar / 3.5 bar)

  
  

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

All values nominal; HY-18286 is documented at 45 mm OD × 25.4 mm ID × 86 mm length, micro-glass fiber media, β₁₂ = 1000, 210 bar max. differential pressure, -25 °C to +120 °C, NBR seal . The standard configuration delivers 10–15 µm filtration at 98 % efficiency with a 2000-hour service life . Micron grade is configurable from 1–200 µm; media type, end-cap material, and seal compound are selectable per application . Confirm housing compatibility (45 mm OD × 25.4 mm ID × 86 mm envelope) before installation. Select micron grade to match circuit position: 1–5 µm for servo valves, 5–10 µm for piston pumps, 10–20 µm for vane/gear pumps, 20–40 µm for return loops, 100–180 µm for suction. Glass-fiber elements are disposable; replace per clogging indicator or 2000-hour service interval.