Flat End Cap
Flat end configuration for standard open or closed cartridge designs.
Chemical-Resistant Membrane Filtration
PTFE Pleated Filter Cartridges by Media Type, Micron Rating, Size and End Cap
INCE filtration manufactures hydrophilic and hydrophobic PTFE pleated filter cartridges for aggressive chemicals, organic solvents, liquid filtration, air filtration and gas filtration. PTFE membrane provides strong resistance to acids, alkalis, heat and corrosion, while the reinforced pleated structure supports high retention efficiency, toughness and long service life.
Core Product Data
Filtration MediaHydrophilic PTFE / Hydrophobic PTFE
Micron Ratings0.1, 0.22, 0.45, 1 µm
Length10–70 inches; 20–40 inches can be made in one piece
ApplicationsLiquid, air, gas, solvent, ink and aggressive chemical filtration
PTFE Pleated Filter Cartridge Features
PTFE cartridges are selected for demanding filtration duties requiring chemical resistance, heat resistance and reliable fine retention.
Strong Chemical Resistance
Tolerates strong acids, strong alkalis and many organic solvents when the complete cartridge materials are compatible.
Heat & Corrosion Resistance
PTFE membrane offers strong resistance to elevated temperature and corrosive filtration environments.
High Retention Efficiency
Fine membrane grades provide high filtration efficiency, strong retention and stable process protection.
High Strength
Support layers, center core and outer cage provide toughness and structural stability.
Long Service Life
Durable membrane construction supports extended operation under compatible process conditions.
Liquid or Gas Options
Hydrophilic PTFE is used mainly for liquids; hydrophobic PTFE is used mainly for air, gas and vent filtration.
PTFE Pleated Cartridges by Media Type
Select hydrophilic or hydrophobic membrane treatment according to whether the process fluid is liquid, air or gas.
Hydrophilic PTFE Cartridge
Designed mainly for liquid filtration. Modified PTFE media wets with compatible liquids while maintaining strong chemical resistance.
Liquid FiltrationChemicalsInkWater Treatment
Hydrophobic PTFE Cartridge
Designed mainly for air, gas and vent filtration. The water-repellent membrane supports gas passage while resisting liquid wetting.
AirGasTank VentingSterile Gas
Selection Guidance
Confirm fluid phase, chemical composition, temperature, pressure, required retention and wetting method before choosing the PTFE media type.
Hydrophilic = LiquidHydrophobic = Gas
Product Structure & Material
PTFE membrane media is combined with non-woven support layers, a polypropylene cage and a PP or 316L stainless steel center core.
End CapPP or PP + stainless steel options
Filtration MediaHydrophilic or hydrophobic PTFE membrane
Support StructureUpstream/downstream support, PP cage and PP/316L core
Material & Construction Data
Filtration MediaHydrophilic PTFE / Hydrophobic PTFE
Support LayerNon-woven fabric
Outer Support CagePP polypropylene
Center CorePolypropylene / 316L stainless steel
End CapPolypropylene / Polypropylene + stainless steel
O-Rings / GasketsSilicone rubber, EPDM rubber, NBR nitrile, fluororubber, PTFE rubber
Connection ProcessSealed by hot melt welding, no adhesive
Typical ApplicationsPharmaceutical, food and beverage, chemical, electronics, water treatment and ink filtration
100% PTFE Media
The filtration membrane is made from PTFE for chemical and thermal resistance.
CFR 21 Options
Material configurations can be selected to comply with CFR 21 requirements where applicable.
No Adhesive
Thermal welding supports cleaner construction and reduces adhesive-related contamination risk.
PTFE Pleated Filter Cartridges by Micron Rating
Select pore size according to retention requirement, gas or liquid flow, acceptable differential pressure and integrity-test target.
Critical Retention Grade
For demanding liquid, air or gas filtration where high retention is required.
0.1 µm0.22 µm
Fine Process Filtration Grade
For fine chemical filtration, water treatment, ink filtration and controlled gas filtration.
0.45 µm1 µm
Micron Rating and Flow
Lower pore sizes create greater pressure drop; coarser PTFE grades support higher gas or liquid flow.
0.1 µm = Highest Retention0.22 µm = Fine Duty0.45–1 µm = Higher Flow
PTFE Pleated Filter Cartridges by Size
Match length, outside diameter, inside diameter and interface dimensions to the existing filter housing.
Cartridge Length
Available from 10 to 70 inches. Lengths from 20 to 40 inches can be manufactured in one piece.
10"20"30"40"50"60"70"
Outside Diameter
Reference outside diameters include 60, 64, 68, 84 and 131 mm.
60 mm64 mm68 mm84 mm131 mm
Inside Diameter
The reference inside diameter is 28 mm. Custom dimensions are available.
28 mm IDCustom ID
PTFE Pleated Filter Cartridge End Cap Options
Each card includes a reserved image position for the corresponding PTFE cartridge end cap photo.
222 End Cap
Double O-ring 222 adapter for secure insertion and sealing.
High 222 End Cap
Extended 222 adapter for housings requiring a taller connection profile.
226 End Cap
Bayonet-style 226 adapter for fast locking in compatible housings.
215 End Cap
215 interface for selected process and OEM filter housings.
Threaded End Cap
Threaded adapter for screw-in cartridge installation.
Triangle Tip
Triangle fin design for positioning and stabilization.
Semi-Winged Tip
Semi-winged fin for cartridge alignment in compatible housings.
Flat Peak Cover
Flat peak cover for selected closed-end support configurations.
PTFE Pleated Filter Cartridge Specifications
The following values are organized from the supplied PTFE cartridge product sheet.
| Category | Specification Item | Available Data |
|---|---|---|
| Product Size | Filtration Accuracy | 0.1 µm, 0.22 µm, 0.45 µm, 1 µm |
| Length | 10–70 inches; 20–40 inches can be manufactured in one piece | |
| Diameter | OD 60 mm, 64 mm, 68 mm, 84 mm, 131 mm (±1 mm); ID 28 mm | |
| End Cap Type | Port / Interface Options | 215, 222, High 222, 226, Triangle Tip, Semi-Winged Tip, Flat Peak Cover, Flat and custom interfaces |
| Operating Conditions | Normal Operating Temperature | Liquid: 90°C; Gas: 100°C |
| Maximum Temperature / ΔP | Liquid: 80°C, ΔP ≤ 0.30 MPa; Gas: 100°C, ΔP ≤ 0.20 MPa | |
| Maximum Differential Pressure | At 25°C, ΔP ≤ 0.55 MPa | |
| Note | Hot Water / Steam Sterilization | Stainless steel insert option is required for cartridges intended for hot water sanitization or steam sterilization. |
Flow, Pressure Drop & Integrity Testing
The supplied data includes gas-flow, water-flow and air-diffusion integrity references for PTFE membrane cartridges.
Air Flow — 30 psig
Reference: 30 psig system pressure at 65°F (18°C). Finer PTFE grades create higher differential pressure.
Low-Pressure Air Flow
Reference: below 10 psig, vented to atmosphere. Used as a comparative gas-flow guide.
Water Flow Rate
Typical water-flow reference per 10-inch cartridge length for wetted PTFE membrane.
| Pore Size | Reference Air Diffusion Rate |
|---|---|
| 0.1 µm | <50 cc/min at 18 psig (1.2 bar) |
| 0.2 µm | <20 cc/min at 12 psig (0.8 bar) |
| 0.45 µm | <15 cc/min at 5 psig (0.34 bar) |
| 1.0 µm | <15 cc/min at 3 psig (0.2 bar) |
Integrity reference per 10-inch length with membrane wetted by 60/40 IPA/water, as shown in the supplied sheet.
Typical PTFE Cartridge Applications
Hydrophilic and hydrophobic PTFE cartridges cover liquid, air, gas, solvent and aggressive chemical filtration duties.
Pharmaceutical Industry
Fine liquid filtration, gas filtration and venting in compatible pharmaceutical processes.
Food & Beverage
Compatible process liquid, air and gas filtration where PTFE is suitable.
Chemical Industry
Strong acids, alkalis, solvents and aggressive chemical filtration.
Electronics
Fine filtration of compatible chemicals and process gases.
Water Treatment
Hydrophilic PTFE liquid filtration for selected high-purity water duties.
Ink Filtration
Fine particle removal from compatible inks and solvent-based liquids.
Air & Gas
Hydrophobic PTFE for sterile gas, tank venting and compressed-air filtration.
OEM Equipment
Custom PTFE cartridges for housings, skids, vent filters and process systems.
Custom PTFE Pleated Filter Cartridge Service
INCE filtration supports custom membrane treatment, pore size, length, diameter, end cap, gasket, core and sterilization configuration.
Define Gas or Liquid Duty
Confirm whether the cartridge is for liquid, air, gas, venting or solvent filtration.
Select PTFE Media
Choose hydrophilic or hydrophobic PTFE and the required 0.1–1 µm rating.
Confirm Compatibility
Review chemicals, temperature, pressure, gasket, end cap and sterilization method.
Sample & Production
Support sample approval, integrity data, OEM labels and bulk export supply.
Need a Hydrophilic or Hydrophobic PTFE Cartridge?
Send your gas or liquid application, chemical composition, pore size, size, end cap photo, pressure and temperature.
PTFE Pleated Filter Cartridge FAQ
Common questions about PTFE membrane cartridge selection.
What is the difference between hydrophilic and hydrophobic PTFE?
Hydrophilic PTFE is used mainly for liquids. Hydrophobic PTFE resists water wetting and is used mainly for air, gas and vent filtration.
What micron ratings are available?
Available PTFE grades include 0.1, 0.22, 0.45 and 1 µm.
Which chemicals can PTFE cartridges filter?
PTFE is compatible with many strong acids, alkalis and organic solvents, but the complete cartridge materials must be checked against the actual process.
Can PTFE cartridges be integrity tested?
Yes. Air-diffusion or other integrity testing can be discussed according to pore size, membrane wetting method and customer protocol.
What information is needed for a quotation?
Please provide media type, micron rating, length, OD, ID, end cap, gasket, chemical composition, temperature, pressure, flow rate and quantity.
Request an Industrial Filtration Quote
Send the model, size, material, micron rating and operating requirements. The current product page is included automatically with your inquiry.
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