Chemrapid CHR
Chemrapid surface-modified PTFE filters
Surface-modified PTFE filters for aqueous process chemicals, with PFA hardware and a membrane designed to reduce dewetting.
Specifications & documents ↗FILTRATION / Pleated Cartridges
PTFE Pleated Cartridges
Hydrophobic and hydrophilic configurations require different handling. Confirm membrane state, components and cleaning procedures.
- Product type
- Pleated Cartridges
- Material options
- PTFE
- Specifications
- Confirmed by model and process
Images and specifications refer to the indicated models. Contact us to confirm configuration and suitability.
Construction & operating principle
A PTFE pleated cartridge combines fluoropolymer membrane with supports to provide substantial filtration area. Hydrophobic grades serve suitable gases or wetted-liquid applications, while modified hydrophilic grades address different liquid-startup needs. Cores, end fittings and seals remain part of the element, and their materials jointly define its service envelope rather than the properties of PTFE resin alone.
Typical uses
- Particle filtration of compatible organic solvents
- Process-gas filtration with appropriate grades
- Aqueous-chemical assessment using hydrophilic configurations
Compare product approaches
| Selection factor | What to compare |
|---|---|
| Surface state | Hydrophobic and hydrophilic grades need different startup procedures; residual wetting liquid may affect formulations. |
| Construction | PP and fluoropolymer supports can have different pressure, temperature and chemical limits. |
| Gas or liquid | Gas-flow information cannot substitute directly for liquid-flow data. |
Selection information to confirm
| Category | Pleated Cartridges |
|---|---|
| Material options | PTFE |
| Filtration objective | Define what to remove and what to retain |
| Rating / Dimensions | Confirm combinations against controlled model specifications |
| Flow / Temperature / Pressure | Specify normal and limiting operating conditions |
| Connections / Seals | Confirm installation interfaces and wetted materials |
| Cleaning / Validation | Confirm the service cycle and acceptance criteria |
These are selection inputs, not verified performance claims for a specific model.
Build a clear application brief
Use the worksheet to collect your operating conditions. Contact us for controlled datasheets, dimensional drawings or validation documents for a specific model.
Product selection worksheet · TXT ↓Request technical documents ↗PRODUCT SERIES
Product series & technical resources
Find a product series around your process requirements.
HPF I
HPF I PTFE gas-filter cartridges
Hydrophobic PTFE cartridges with PP support for fermentation, tank venting and process gas.
Specifications & documents ↗
HPF II
HPF II PTFE gas-filter cartridges
Hydrophobic PTFE cartridges with PPS support for fermentation, tank venting and process gas.
Specifications & documents ↗
HPF III
HPF III PTFE liquid-filter cartridges
PTFE cartridges for pharmaceutical liquids and solvents, selected according to fluid chemistry and wetting requirements.
Specifications & documents ↗
HPF IV
HPF IV PTFE liquid-filter cartridges
PTFE cartridges for pharmaceutical liquids and solvents, selected according to fluid chemistry and wetting requirements.
Specifications & documents ↗
BTF
BTF pleated PTFE cartridges
Hydrophobic PTFE series for inlet and vent filtration on food fermentation, seed and mixing tanks.
Specifications & documents ↗
ELPF / ELPFH
ELPF / ELPFH precision PTFE cartridges
PTFE membrane with PP structural components, offered in hydrophobic and hydrophilic versions for different process liquids.
Specifications & documents ↗
CLPF / CLPFH
CLPF / CLPFH precision PTFE cartridges
PTFE membrane with PP structural components, offered in hydrophobic and hydrophilic versions for different process liquids.
Specifications & documents ↗
PRNF / PRNN
PRNF / PRNN photoresist filter cartridges
Photoresist-filtration series with PTFE and nylon membrane configurations; structural materials require confirmation for the final model.
Specifications & documents ↗
AET / AETI
AET / AETI PTFE chemical-filter cartridges
Electronic-chemical filtration series with a hydrophilic PTFE membrane configuration in AETI.
Specifications & documents ↗
PFA / PFAI
PFA / PFAI PTFE membrane cartridges
Chemical-filtration series combining PTFE membrane and PFA structural components, with hydrophilic PTFE in PFAI.
Specifications & documents ↗
Chemphobic CHT
Chemphobic ultrapure chemical filters
Hydrophobic PTFE media and PFA hardware in cartridge, disposable and small in-line formats for corrosive process chemicals.
Specifications & documents ↗
Chemvast CHV
Chemvast low-temperature chemical filters
PTFE media with HDPE support, offered in hydrophobic, hydrophilic and modified options for low-temperature high-purity chemical filtration.
Specifications & documents ↗
Chemega CHG
Chemega PTFE filters
PTFE media and PP hardware for lower-temperature dilute chemicals, solvents, DIW and developer solutions.
Specifications & documents ↗
Photopex Small PP-S1
Photopex small photochemical cartridges
Compact cartridges for photochemical filtration, available with Nylon 66, PE or PTFE membranes.
Specifications & documents ↗
Chemdeion CHP
Chemdeion IPA purifiers
Surface-modified PTFE media with PFA hardware for metal-ion and particle control in critical IPA cleaning.
Specifications & documents ↗
PF4 / HPF4
All-fluoropolymer PTFE cartridges
PTFE membranes and PFA structural components in hydrophobic or hydrophilic configurations for wet-process chemicals and cleaning.
Specifications & documents ↗
PF2 / HPF2
PVDF-construction PTFE cartridges
PTFE membranes combined with PVDF structural parts for chemical and wet-process filtration.
Specifications & documents ↗
PF3 / HPF3 / UPE
HDPE-construction PTFE / UPE cartridges
PTFE or UPE membranes combined with HDPE structural parts for chemical and wet-process filtration.
Specifications & documents ↗
PF1 / HPF1
PP-construction PTFE cartridges
PTFE membranes combined with PP structural parts for chemical and wet-process filtration.
Specifications & documents ↗
UM-HPFA
All-fluoropolymer PTFE cartridges
PTFE membranes with PFA structural components for wet cleaning, electronic-chemical production and delivery.
Specifications & documents ↗
HDPE
HDPE-construction filter cartridges
Pleated cartridges for electronic chemicals or wet cleaning, with membrane and structural components selected for the process fluid.
Specifications & documents ↗
PVDF
PVDF-construction filter cartridges
Pleated cartridges for electronic chemicals or wet cleaning, with membrane and structural components selected for the process fluid.
Specifications & documents ↗
EXafPure WF
All-fluoropolymer pleated cartridges
PTFE membranes with PFA support and structural components for high-purity chemicals in semiconductor wet processing.
Specifications & documents ↗
MemAFPure PFA / MAF
PFA all-fluoropolymer pleated cartridges
High-porosity PTFE membranes with PFA components for electronic chemical filtration.
Specifications & documents ↗
Wet-Vast
PTFE process cartridges
PTFE membranes with HDPE structural and support layers provide a non-perfluorinated cartridge option for electronic chemicals.
Specifications & documents ↗
Wet-Mega
PTFE process cartridges
PTFE membranes with PP structural and support layers provide a non-perfluorinated cartridge option for electronic chemicals.
Specifications & documents ↗Use & maintenance
- 01
Preparation
Complete application-specific wetting or gas-path checks and confirm membrane and interface condition.
- 02
Continuous service
Manage condensate, bubbles and pressure changes, including unintended reverse differential pressure.
- 03
Cleaning and reuse
Use only supported, validated procedures; restored flow does not establish restored retention.
Product questions
Can PTFE cartridges withstand any cleaning chemical?
Supports, ends and seals also limit compatibility, so assess the entire element.
Does a hydrophobic cartridge with no water flow mean blockage?
Incomplete wetting or a gas lock may explain the result before particulate fouling does.
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