Marksman DFN Series Filter Elements

The Marksman™ DFN Series Filters are high-capacity pleated glass fiber filter elements with a new, large cartridge geometry. The filters come with micro-fiberglass Duo-Fine® media and an inside-to-outside flow pattern that traps the contaminants inside the element.

Features and Benefits: 

  • High flow capacity 
  • 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
  • The 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

Order Products

Product ID: DFNM101UNPFA
Unit of Measure
4/EA
Min Order Qty
4
Cartridge Length
Size 1 bag
Filter Grade
10 µm
Hardware Material
Polypropylene
Outside Diameter (Imperial)
6 in
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Product ID: DFNM20125TVM5
Unit of Measure
4/EA
Min Order Qty
4
Filter Grade
20 µm
Hardware Material
Polypropylene
Outside Diameter (Imperial)
6 in
Outside Diameter (Metric)
152 mm
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Discontinued
Product ID: DFNM12UNF
Unit of Measure
4/EA
Min Order Qty
4
Cartridge Length
Size 2 bag
Hardware Material
Polypropylene
Outside Diameter (Imperial)
6 in
Outside Diameter (Metric)
152 mm
See All Attributes
3 Items
  • 1

Applications/Use

The Marksman DFN Glass Fiber Filter Elements are used in the following industries – 

Oil and Gas:

  • Midstream process water 

Chemicals and Polymer:

  • Carbon fiber production 

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: Five flange options 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 Specifications:

 

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 is 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 1.9
DFNM 10 2.8 9.3
DFNM 20 9.5 17
DFNM 40 17 37

 

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 microns. Additional information can be obtained by contacting Pall Corporation.

Ordering Information

Pall Part Number = DFNM [1] [2] – [3] U [4] – [5] [6]

 

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 vessels8

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.

8 Installation of Marksman cartridge with CB flange requires an additional housing hold down plate as follows:

Part Number Description
ERA286666C CBFP 11/12 Hold-Down Plate, Stainless Steel, 2” Inlet
ERA286667C CBFP 11/12 Hold-Down Plate, Stainless Steel, 3” Inlet

FAQs

Q. 1. Do the Marksman DFN Series Filters require any hardware changes?

- The Marksman DFN Series Filters can fit most Size 1 and Size 2 bag vessels with no hardware changes.

 

Q. 2. What are the filter grade options available for Marksman DFN Series Filter Elements?

- The Marksman DFN Series Filter Elements are available in 1.5, 3, 10, 20, and 40 micron (µm) ratings. 

 

Q. 3. Can I use the Marksman DFN Series Filter Elements for carbon fiber production?

- Yes, the Marksman DFN Series Filters are ideal for carbon fiber production.