Description
High Capacity Pleated Glass Filter Elements
- New, larger cartridge geometry
- High flow capacity
- Inside-out flow traps contaminant inside the element
- Available to fit most Size 1 and Size 2 bag vessels with no hardware changes
- Available in 101.6 cm (40 in.) for use in unique 101.6 cm (40 in.) Pall vessels
- Unique sealing device adjusts to fit in most conventional bag filter vessels
- High surface area for long service life
- Micro-fiberglass Duo-Fine® media (with acrylic binder)
- Polypropylene end caps and outer netting, polyester support
- Wide chemical compatibility
For detailed information about this product, please refer to the data sheet. (To download this data sheet, select Download PDF from the menu above.)
Products in this datasheet may be covered by one or more patents, including US 7,473,360.Specifications
Materials of construction
| Filter media: | Borosilicate micro fiberglass with acrylic binder |
| Hardware: | Polypropylene end caps and outer netting |
| Support material: | Spunbonded polyester |
| Gaskets: | EPDM, fluorocarbon elastomer, nitrile |
| Sealing: | Thermal bond |
Dimensions (nominal)
| Outside flange diameter: | Three diameters are available. Contact Pall for information on sizes. |
| Outside filter diameter: | 15.2 cm (6 in.) |
| Lengths: | Size 1 Size 2 Size 4 - 101.6 cm (40 in.) |
Performance
Filter grades
1.5, 3, 10, 20, 40 micron (μm)Maximum operating differential pressure
- to 2.9 bard @ 20 °C (42 psid @ 68 °F)
- to 1.0 bard @ 79 °C (15 psid @ 175 °F)
NOTE: Stainless steel flange recommended for temperatures in excess of 43 °C (110 °F).
Recommended change-out differential pressure1
2.4 bard @ up to 54 °C (35 psid @ up to 130 °F)Particle Removal Ratings2 (μm)
| Cartridge Designation | 90% Efficiency | ≥ 99.9% Efficiency |
| DFNM 1.5 | 0.9 | 1.6 |
| DFNM 3 | 1.0 | 1.9 |
| DFNM 10 | 2.8 | 9.3 |
| DFNM 20 | 9.5 | 17.0 |
| DFNM 40 | 17.0 | 37.0 |
Typical Flow
| Filter Grade | mbard/lpm (psid/gpm) Water @ 20 °C (68 °F) | ||
| Size 1 | Size 2 | 40 in. | |
| 1.5 | 0.21 (0.011) | 0.09 (0.005) | 0.05 (0.003) |
| 3 | 0.09 (0.005) | 0.04 (0.002) | 0.02 (0.001) |
| 10 | 0.06 (0.003) | 0.03 (0.001) | 0.02 (0.001) |
| 20 | 0.04 (0.002) | 0.02 (0.001) | 0.02 (0.001) |
| 40 | 0.04 (0.002) | 0.02 (0.001) | 0.02 (0.001) |
NOTE: For kPa, multiply mbard/lpm by 0.1.
1 Provided that the maximum differential pressure is not exceeded based on temperature limits defined above.
2 Marksman DFN series filter cartridge retention ratings are based on Pall’s Dynamic Efficiency test protocol. This single pass, destructive challenge test is based on ASTM F-795 test procedures for determining the performance of a filter medium. Fine test dust is used as the test contaminant for filters in the 1 to 20 micron range.Coarse test dust is used for micron ratings above 20 micron. Additional information can be obtained by contacting Pall Corporation.
Type
Large Format Filters
Ordering Information
Pall Part Number = DFNM [1] [2] – [3] U [4] – [5] [6]
3 Pall Marksman "Fit-up" kits are available to help select the best sealing flange/gasket style. Contact your Pall representative for more information.
Table 1
| Code | Length option |
| Blank | Standard |
Table 2
| Code | Filter grades (μm) |
| 1.5 | 1.5 |
| 3 | 3 |
| 10 | 10 |
| 20 | 20 |
| 40 | 40 |
Table 3
| Code | Cartridge lengths nominal |
| 1 | Size 1 bag |
| 2 | Size 2 bag |
| 4 | 101.6 cm (40 in.) |
Table 4
| Code | Gasket materials |
| Blank | For NF version |
| N | Nitrile |
| E | EPDM (peroxide cured) |
| V | Fluorocarbon elastomer |
Table 5
| Code | End configurations |
| PF | Plastic self-adjusting flange |
| SF | Stainless steel self-adjusting flange (required for temperatures >43 °C/110 °F) |
| NF | No flange (for use with reusable SS flange) |
Table 6
| Code | Flange/gasket styles3 |
| A | Pall Marksman Series vessels, Rosedale4, Strainrite, Krystil Klear5 |
| B | FSI BFNP Series vessels (side entry), GAF6 |
| C | FSI FSPN Series vessels (prior to June 2012), Hayward7 over the top |
| F | FSI FSPN Series vessels (from June 2012) |
| CB | FSI CBFP Series vessels |
3 Pall Marksman "Fit-up" kits are available to help select the best sealing flange/gasket style. Contact your Pall representative for more information.
4 Rosedale is a registered trademark of Rosedale Products, Inc.
5 Krystil Klear is a registered trademark of Pentair Water Filtration.
6 GAF is a registered trademark of GAF Corporation.
7 Hayward is a registered trademark of Hayward Industrial Products, Inc.
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