PTFE Filter Membranes (FLONTEX™ 100) are used extensively in pharmaceutical, laboratory, medical & semi-conductor processing applications where ultra pure or highly aggressive liquids and gases need to be filtered using inert, non-clogging filter media.
PTFE Membranes are self-supporting so backing liners are not required. Being naturally hydrophobic FLONTEX™100 is an excellent venting material & due to its non-stick quality, exhibits unrivalled filter cake release properties. As standard, our PTFE membranes are supplied as punched discs, however, semi-finished material in roll or sheet form is available on request.
Availability of PTFE Membranes:
| FLONTEX™100 Filter Discs (Supplied in packs of 50) Other diameters on request. Paper discs are placed between PTFE membranes to ensure cleanliness |
|
|---|---|
| Type | Ø (mm) |
| 100-1 | 37, 47, 50 |
| 100-2 | 37, 47, 50 |
| 100-3 | 47 |
| 100-4 | 47 |
| 100-5 | 47 |
Specification & Properties of FLONTEX™100 PTFE Membranes:
| Property | Unit | Type | ||||
|---|---|---|---|---|---|---|
| 100-1 | 100-2 | 100-3 | 100-4 | 100-5 | ||
| Functional Pore Size | µm | 5-6 | 4-5 | 3-4 | 1-2 | 1-2 |
| Air Flow 100cc/1.0 In.2/20oz (Gurley test) | Sec | 1.7 +/-0.8 | 2.5 +/-1.5 | 4-5 | 5-6 | 6.5 +/-1.5 |
| Bubble Point (Ethanol) | psi | 0.6 +/-0.2 | 0.8 +/-0.2 | 1.0 +/-0.2 | 1.2 +/-0.2 | 1.2 +/-0.2 |
| Water Flow Rate Through 1 ft.2 @ 13.5 psi | GPM | 75 +/-15 | 55 +/-10 | 40 +/-10 | 25 +/-5 | 20 +/-5 |
| Water Initiation Pressure | psi | 2 +/-0.5 | 3 +/-0.5 | 4 +/-0.5 | 6 +/-0.5 | 6 +/-0.5 |
| Elongation | % | 75 | 75 | 75 | 75 | 75 |
| Pore Volume | % | 55 | 50 | 45 | 40 | 40 |
| Thickness | mm | 0.10 +/-0.01 | 0.15 +/-0.02 | 0.20 +/-0.05 | 0.25 +/-0.05 | 0.38 +/-0.05 |
