TefTEC PTFE Membrane Filter Series

Absolute Rated PTFE Membrane Filter Cartridge

TefTEC cartridge filters are constructed with naturally hydrophobic PTFE membrane and polypropylene support layers and components. The HIMA retentive PTFE membrane offers superior hydrophobicity and water intrusion resistance compared to PVDF and polypropylene membranes, and the cartridge construction offers a cost-effective alternative to all fluorocarbon filters. TefTEC filters are ideal for gas/vent applications and the filtration of aggressive chemicals and solvents.

TefTEC Filter Features–Benefits

  • High surface area, single-layer construction provides superior flow rates and minimizes filtration system size
  • 100% Flushed with DI water and integrity tested
  • Meets applicable CFR criteria and USP Class VI Biological Test for Plastics
  • Filters are manufactured in an ISO Class 7 Cleanroom Environment
  • Filters are flushed, tested and packaged in a Class ISO 7 clean room
  • Manufactured using current Good Manufacturing Practices
  • Each filter element stamped with pore size, lot and serial number for identification and traceability

 

Filter Specifications

Media:

PTFE membrane

Inner core, end caps, cage:

Polypropylene

Support layers:

Polypropylene

Gaskets/O-Rings options: Buna-N, EPDM, Silicone, Viton, Teflon Encapsulated Viton
Micron ratings:

0.05 μm, 0.1 μm, 0.2 μm, 0.45 μm, 1.0 μm

Dimensions and Operating Parameters
Nominal lengths:

25.4, 50.8, 76.2 cm

Outside diameter:

6.9 cm

Inside diameter:

2.54 cm

Surface Area

8.5 sq. ft. (0.79m2) – 10 inch element

 

Maximum operating temperature:

95°C

Differential pressure:

75 psid @ 70°F (5.5 bar @ 21°C)

40 psid @ 176°F (2.8 bar @ 80°C)

15 psid @ 203°F (1.03 bar @ 95°C)

 

 

Performance Specifications

Steam/Autoclave

Cartridges will withstand at least 5 steam/autoclave 30 minute cycles @ 275°F (135°C)

Integrity Test Values

Air Diffusion per 10 inch cartridge wet with 60/40 IPA/water. Contact Graver Technologies for specific method.

 

Pore Size Specification
0.05 μm

≤50 cc/min @ 22 psig (1.5 bar

0.1 μm:

≤ 50 cc/min @ 18 psig (1.2 bar)

0.2 μm: ≤20 cc/min @ 12 psig (0.8 bar)
0.45 μm:

≤15 cc/min @ 5 psig (0.34 bar)

1.0 μm: ≤15 cc/min @ 3 psig (0.2 bar)

Applications

Aggressive chemicals • Tank Vents • Strong acids/bases • Compressed gases • Solvents • Photoresists • Pharmaceutical Intermediates • Hot DI water • Fermentation air