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DFA™ Filter Capsules (Ultrapure Water Filtration)

Overview
Specifications
Performance
Additional Information
Ordering Information
BROCHURE
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COST
Estimation

The DFA filter assembly is a compact capsule, ideally suited for the filtration of point-of-use DI water.

  • Vent at highest location
  • Drain at lowest location
  • High flow rates
  • Manufactured in a cleanroom environment
  • O-ring less design
  • Minimized dead space for complete and easy venting

Specifications

Materials

P-Nylon Filter

  • Hydrophilic Nylon 6,6 Medium
  • Shell, core, cage and end caps: Polypropylene
  • Support and drainage: High Density Polyethylene (HDPE)

Ultipor® Filter

  • Hydrophilic Nylon 6,6 Medium
  • Shell, core, cage and end caps: Polypropylene
  • Support and drainage: Polypropylene

Fluorodyne® Filter

  • Hydrophilic PVDF Medium
  • Shell, core, cage and end caps: Polypropylene
  • Support and drainage: Polypropylene
Removal Ratings
  • P-Nylon: 0.2 μm, 0.1 μm, 0.04 μm, 0.02 μm
  • Ultipor: 0.2 μm, 0.1 μm
  • Fluorodyne: 0.1 μm, 0.2 μm
Connections

Inlet, outlet / vent, drain

  • 1⁄4 in. NPT / 1⁄8 in. NPT
  • 3⁄8 in. Swagelok1 / 1⁄4 in. Swagelok
  • 1⁄2 in. Swagelok / 1⁄4 in. Swagelok2
  • 6 mm Pillarfitting3 / 4 mm Pillarfitting
  • 8 mm Pillarfitting / 4 mm Pillarfitting
  • 10 mm Pillarfitting / 4 mm Pillarfitting2
  • 1⁄4 in. Pillarfitting / 1⁄4 in. Pillarfitting
  • 3⁄8 in. Pillarfitting / 1⁄4 in. Pillarfitting
  • 3⁄8 in. Flaretek4 / 1⁄4 in. Flaretek
Operating Conditions

Maximum Pressure:

  • 75 psig @ 100 °F / 5 bar @ 38 °C

1 Swagelok is a trademark of Swagelok Co.
2 Contact Pall Microelectronics for these fitting options
3 Pillarfitting is a trademark of Pillar Packing Co.
4 Flaretek is a trademark of Entegris, Inc.

Performance

Pressure Drop vs. Liquid Flow Rate

Ultipor Filters: DFA4201 / DFA1 Series

Ultipor Filters: DFA2 / DFA6402 Series

P-Nylon Filters: DFA4201U / DFA1U Series

P-Nylon Filters: DFA2U / DFA6402U Series

Fluorodyne Filters: DFA4201 / DFA1 Series

Additional Information

Dimensions

Ordering Information / Part Numbers

AB [1] V [2] [3] EY [4]

Part Number Removal
Rating (μm) 		Filter Area
(in.2 / cm2) 		Connections
Inlet, Outlet / Vent, Drain		 Nominal Length
L (in. / mm)
P-Nylon Filter (Nylon 6,6 Media / HDPE Support and Drainage Layer)
DFA4201UNAE 0.2 279 / 1800 1⁄4 in. NPT / 1⁄8 in. NPT 4.51 / 114.5
DFA4201UNIE 0.1 279 / 1800 1⁄4 in. NPT / 1⁄8 in. NPT 4.51 / 114.5
DFA1UNIENP64M 0.1 279 / 1800 6 mm Pillarfitting / 4 mm Pillarfitting 4.51 / 114.5
DFA1UNIENP84M 0.1 279 / 1800 8 mm Pillarfitting / 4 mm Pillarfitting 4.70 / 119.5
DFA6402UNIE 0.1 574 / 3700 3⁄8 in. Swagelok / 1⁄4 in. Swagelok 6.80 / 173
DFA4201UNIE 0.1 279 / 1800 1⁄4 in. NPT / 1⁄8 in. NPT 4.51 / 114.5
DFA2UNIEFL64 0.1 574 / 3700 3⁄8 in. Flaretek / 1⁄4 in. Flaretek 8.40 / 214.5
DFA1UNDENP64M 0.04 341 / 2200 6 mm Pillarfitting / 4 mm Pillarfitting 4.51 / 114.5
DFA1UNDENP84M 0.04 341 / 2200 8 mm Pillarfitting / 4 mm Pillarfitting 4.70 / 119.5
DFA6402UNDE 0.04 713 / 4600 3⁄8 in. Swagelok / 1⁄4 in. Swagelok 6.80 / 173
DFA2UNDEFL64 0.04 713 / 4600 3⁄8 in. Flaretek / 1⁄4 in. Flaretek 8.40 / 214.5
DFA2UNDENP84M 0.04 713 / 4600 8 mm Pillarfitting / 4 mm Pillarfitting 7.77 / 197
DFA2UNDENP64R 0.04 713 / 4600 3⁄8 in. Pillarfitting / 1⁄4 in. Pillarfitting 7.62 / 194
DFA2UNMENP84M 0.02 961 / 6200 8 mm Pillarfitting / 4 mm Pillarfitting 7.77 / 197
DFA2UNMENP64R 0.02 961 / 6200 3⁄8 in. Pillarfitting / 1⁄4 in. Pillarfitting 7.62 / 194
DFA2UNMEFL64 0.02 961 / 6200 3⁄8 in. Flaretek / 1⁄4 in. Flaretek 8.40 / 214.5
Ultipor Filter (Nylon 6,6 Media / Polypropylene Support and Drainage Layer)
DFA4201NAEY 0.2 215 / 1390 1⁄4 in. NPT / 1⁄8 in. NPT 4.51 / 114.5
DFA6402NAEY 0.2 400 / 2600 3⁄8 in. Swagelok / 1⁄4 in. Swagelok 6.80 / 173
DFA1NIEYNP64M 0.1 215 / 1390 6 mm Pillarfitting / 4 mm Pillarfitting 4.51 / 114.5
DFA1NIEYNP84M 0.1 215 / 1390 8 mm Pillarfitting / 4 mm Pillarfitting 4.70 / 119.5
DFA1NIEYSW44 0.1 215 / 1390 1⁄4 in. Swagelok / 1⁄4 in. Swagelok 4.51 / 114.5
DFA6402NIEY 0.1 400 / 2600 3⁄8 in. Swagelok / 1⁄4 in. Swagelok 6.80 / 173
Fluorodyne Filter (PVDF Media / Polypropylene Support and Drainage Layer)
DFA4201V002EY 0.2 202 / 1300 1⁄4 in. NPT / 1⁄8 in. NPT 4.51 / 114.5
DFA4201V001EY 0.1 202 / 1300 1⁄4 in. NPT / 1⁄8 in. NPT 4.51 / 114.5
DFA1V001EYSW44 0.1 202 / 1300 1⁄4 in. Swagelok / 1⁄4 in. Swagelok 4.51 / 114.5

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