Hydraulic Filler Breather Strainer Basket is used for catching dirt and debris when hydraulic, gearbox and lube tanks are topped up, with a mesh basket that hangs under the filler-breather cap. ISO 4406 tank breathers is the reference cited for it on drawings, datasheets and purchase orders.
What ISO 4406 tank breathers Means for Hydraulic Filler Breather Strainer Basket
The dimensions in the table below are supplied to suit ISO 4406 tank breathers. Where the standard sets requirements for the finished appliance, device or system, compliance testing of that assembly stays with its manufacturer; we supply the metal mesh part to the drawing and can provide material certificates and dimensional reports with the shipment.
Hydraulic Filler Breather Strainer Basket Dimensions
| Size | Basket diameter (mm) | Depth (mm) | Mesh | Micron rating (u00b5m) |
|---|---|---|---|---|
| u00d848 | 48 | 80 | 30-Mesh | 547 |
| u00d860 | 60 | 110 | 40-Mesh | 385 |
| u00d880 | 80 | 150 | 60-Mesh | 233 |
Specifying Hydraulic Filler Breather Strainer Basket Beyond the Standard
- Basket size: Basket diameter and depth must suit the filler neck and tank depth.
- Mesh: 30–60 mesh stops debris without slowing filling.
- Material: Stainless or zinc-plated steel, compatible with the oil.
When Hydraulic Filler Breather Strainer Basket Is Not the Right Choice
Not a substitute for filtering new oil with a filter cart; new oil is often dirtier than the system requires.





