Vacuum Filtration Guide
Welcome to our collection of resource documents for vacuum filtration! For more information on specific products, be sure to visit the FAQ tab on our product pages, or contact a Sterlitech representative.
Vacuum filtration is used primarily in microbiological and laboratory procedures involving the collection of a particulate (bacteria, precipitate, etc.) from a liquid suspension. Liquid poured into a funnel passes through a filter, which retains the particulate, and filtrate can be collected into a filter flask, directly or via a vacuum manifold. Applying vacuum filtration also reduces process time compared to gravity flow.
Sterlitech's selection covers all the essential components for lab vacuum filtration applications, along with accessories. We also offer kits to enable easy set-up of water testing, media aspiration, and general filtration. For a list of compatible vacuum pumps, you can check them here. Our full product catalog is available for download on this page.
Application Guide
| Typical Applications | DNA/RNA hybridization, protein binding, receptor binding studies, and gravimetric analyses | Coliform, yeast, mold, total bacteria, and sterility testing | Colony hybridization, procedures requiring a large filtration area | Solvent Purification and Filtration, General Filtration | |
|---|---|---|---|---|---|
| Recommended Filter Holder Model | |||||
| Glass with frit | KG 90 | ||||
|
Glass with stainless steel support |
- | KGS 25 | |||
|
Glass with PTFE support |
- | - | KGT 47 | - | |
|
Glass with all-PTFE seal |
- | - | KGT 47 TF | - | |
|
All-glass assembly |
- | - | |||
|
Filtration set (non-glass) |
|
||||
|
Phase/Fraction collector |
- | - |
P/FC 1 & P/FC 2 |
- | |
|
Polysulfone |
- | - | KP 47 | - | |
|
Stainless steel |
- | - |
- |
|
|
|
Magnetic polyethersulfone |
- | - | - | ||
| Membrane Filter Specifications | |||||
|
Membrane diameter (mm) |
13 | 25 | 47 |
90 142 (SFC142) |
|
|
Filtration area (cm2) |
1.2 | 2.1 | 9.6 |
43.2 124.6 (SFC142) |
|
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