PTFET PTFE Membrane Filter Cartridge
Hydrophilic and hydrophobic media directions make it easier to match the cartridge to the fluid’s wetting behavior.
PTFETThe gallery shows different views and construction details from this series.
Product overview
A PTFE membrane pleated cartridge available in hydrophilic and hydrophobic directions, subject to application review.
Hydrophilic and hydrophobic media directions make it easier to match the cartridge to the fluid’s wetting behavior.
- Series
- PTFET
- Selection priorities
- Media, rating basis, length, end fitting, seal, differential pressure and replacement conditions
Working principle
PTFET retains particles through PTFE membrane. Hydrophilic and hydrophobic versions wet differently and must be identified first.
Construction & flow path
PTFE membrane, support, ends and seals form the pleated cartridge. The membrane's material direction does not replace whole-element compatibility checks.
Applications & filtration duty
Review liquid and gas/vent duties separately. For aqueous liquids with hydrophobic PTFE, confirm wetting procedures and the intended duty.
Technical parameters
Use these specifications for selection. Materials, dimensions and operating conditions follow the selected model and agreed specification.
Materials & construction
- Filter media
Hydrophilic or hydrophobic PTFE membrane; PP inner and outer supports.
- Construction & fabrication
Pleated PTFE-membrane construction.
- Seal-material codes
S=silicone; V=fluoroelastomer; VT=PTFE-encapsulated; R=EPDM; Z=NBR
Filtration specifications
- Filtration ratings
0.1 / 0.22 / 0.45 / 1.00 μm
- Nominal length
10 / 20 / 30 / 40 in
- Flow and pressure-loss selection
Assess flow and pressure loss for the specific rating, media and temperature; use curves only for the specifications they represent.
Operation & maintenance
- Operating temperature
≤80 °C
- Maximum forward element differential pressure
0.42 MPa at 25 °C
- Maximum reverse element differential pressure
0.21 MPa at 25 °C
- Sterilization reference
Sterilization reference: 121 ± 2 °C, 30 min per cycle with in-line steam or an autoclave; review cycle count, material compatibility and process validation for the selected model.
Connections & installation
- End-fitting codes
A=222 single-open-end with solid end cap; B=222 single-open-end with spear end; C=226 single-open-end with spear end; D=double-open-end with PP gasket
Configuration & supply scope
- Hydrophilic / hydrophobic type
E=hydrophilic; D=hydrophobic. Select for the fluid and review wetting and seal conditions.
Selection information
- Outside / inside diameters
Model and configuration notes
PTFET + hydrophilic/hydrophobic + rating + length + end fitting + sealLength, end and seal codes are interpreted within the relevant series; the same letter may mean different things in another family.
View the product sheetReview specifications, ordering options and construction diagrams for your application.

Information to prepare for an inquiry
Use this family’s selection priorities to share available operating conditions, equipment information or drawings.
- First identify liquid/gas duty and hydrophilic/hydrophobic version.
- Check all wetted materials against process and cleaning fluids.
- Validate rating, integrity and any sterile-filtration objective separately.
Operation & maintenance
Use version-specific wetting, venting and cleaning procedures. Confirm integrity requirements against the process and cartridge documentation.
Common operating inputs
- Fluid and major composition
- Target flow and operating pattern
- Operating temperature and pressure
- Contaminant form and target rating
- Material, connection and space constraints
- Maintenance frequency and existing equipment
Discuss this product’s configuration
Share the fluid, operating and installation conditions to review suitable specifications.
Products can be configured around the actual duty. Final specifications follow the quotation, drawing or technical agreement confirmed by both parties.
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