DFA™ Filter Capsules (Ultrapure Water Filtration)

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-ringless design
• Minimized dead space for complete and easy venting

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.

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

Unit conversion: 1 bar = 100 kilopascals

Dimensions