Sizing Guide For PBH Bag Filter Housing And BP & BN Series Filter Bags
This sizing guide provides information for the initial sizing and selection of PBH Bag Filter Housing and BP & BN Series filter Bags. Correct sizing and selection can lead to a more efficient filtration system and overall a longer lasting filtration solution.
Which filter bag material to use?
Considerations to make when choosing the best filter bag material.
Polypropylene felt for general reduction of particulates. Available micron ratings 1, 5, 10, 25, 50, 100, 200
Nylon mesh for removing particulates of a specific size or straining applications. Available micron ratings 50, 100, 200, 400, 600
Typical Water Flow Rates
Please the information below comparing filter size against flow rate.
Filter Size
PBH Size 10 Housing
PBH Size 20 Housing
Flow Rate
50 lpm (3 m3/h)
100 lpm (6 m3/h)
* With 25 micron PP felt bags
* * Please note that flow rates may vary depending on application – i.e. dirt load, viscosity, micron rating etc.
What is the Micron Rating of various particles?
A micron is a unit of measure and equals one thousandth of a millimetre.
- 1mm = 1000 microns (micrometer)
- 1 inch = 24,500 microns (imcrometer)
Particles | Micron Rating |
| Paint pigments | 0.1 – 5 micron |
| Corn starch | 0.1 – 10 micron |
| Face powder | 0.1 – 30 micron |
| Bacteria (Pharmaceutical applications) | 0.2 micron |
| Bacteria (Food applications, beer) | 0.45 or 0.65 micron |
| Fine clay | 0.5 – 1 micron |
| Copier toner | 0.5 – 15 micron |
| Coal dust | 1 – 100 micron |
| Yeast (food applications, beer) | 3 – 40 micron (average) |
| Silt, fine | 8 – 13 micron |
| Silt, coarse | 37 micron |
| Coffee | 5 – 400 micron |
| Ginger | 25 – 40 micron |
| Sand, very fine | 60 micron |
| Sand, fine | 125 – 250 micron |
| Beach sand | 500 – 700 micron |
| Coffee, espresso | 200 – 500 micron |
Notice
The information in this guide is accurate to the best of our knowledge and provided for preliminary selection. It is your responsibility to determine if additional testing or information is required and if this product is fit for a particular purpose. Siga Filtration will not be responsible for any damages resulting from the use of this information.
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