Use the family map for screening, not final approval
The detailed Zhongfu engineered liquid-filter scope is made in China and published on a separate product page. Every additional generic route in this overview is labelled as quotation-confirmed sourcing. Exact manufacturer, series, model, country of origin, documentation, territory and availability are confirmed for each sourced-product quotation.
A material name or pore-grade label does not establish chemical compatibility, retention efficiency or drop-in equivalence. Confirm the current datasheet, test method and approved configuration before qualification.
Liquid filter cartridge families
| Product family | Portfolio route | Typical construction route | Initial application screen |
|---|---|---|---|
| Pleated PP cartridge | Application-matched sourcing | Polypropylene membrane, support and hardware | DI water, dilute acid or base, compatible solvents and general electronic-chemical prefiltration |
| Graded-depth PP cartridge | Application-matched sourcing | Layered polypropylene depth media | Selected silica, alumina or ceria slurry production and chemical-delivery prefiltration after distribution review |
| Hydrophilic PES cartridge | Application-matched sourcing | Asymmetric PES membrane with PP or HDPE support | UPW, process water, substrate rinse and compatible dilute aqueous chemistry |
| Zhongfu semi-fluoropolymer PTFE cartridge | Zhongfu engineered · Made in China | PTFE membrane with PP or HDPE cage and HDPE support; exact structure by family | Compatible acids, bases, solvents and electronic-chemical service within published family limits |
| Hydrophilic or modified PTFE/polyolefin cartridge | Quotation-confirmed sourcing | Hydrophilic or modified PTFE membrane with polyolefin structure | Compatible aqueous or organic chemistry where wetting behaviour requires review |
| Zhongfu PTFE/PFA cartridge | Zhongfu engineered · Made in China | PTFE membrane with PFA cage, end caps and support | Selected high-purity chemicals, wet etch and clean, chemical production and CDS positions |
| Hydrophilic or modified PTFE/PFA cartridge | Application-matched sourcing | Hydrophilic or modified PTFE membrane with PFA structure | Compatible aqueous or organic chemistry where wetting behaviour and high-temperature conditions require review |
| UPE membrane with HDPE construction | Application-matched sourcing | UPE membrane with HDPE support and hardware | Photoresist, photochemical solvents, cleaning chemistry and selected wet-process duties |
Compare the current Zhongfu engineered liquid-filter families →
Review PTFE membrane and PFA construction in detail →
Integrated, capsule and laboratory formats
| Product family | Portfolio route | Configuration route | Initial application screen |
|---|---|---|---|
| Zhongfu integrated all-fluoropolymer wet-process filter | Zhongfu engineered · Made in China | PTFE membrane with an integrated PFA housing and flow path | Selected wafer wet etch and clean tools plus compatible high-purity chemical delivery |
| Zhongfu compact 0.5 L / 1 L POU filters | Zhongfu engineered · Made in China | HDPE, nylon or PTFE membrane options by published family and configuration | Developer, DI water, compatible solvents and lithography chemical positions |
| Complementary compact photochemical POU filter | Quotation-confirmed sourcing | UPE, PES and additional membrane/configuration routes in an HDPE structure | Photoresist, developer and compatible solvent positions where hold-up volume, venting and fitting layout matter |
| Integrated CMP depth filter | Application-matched sourcing | Polypropylene depth media in a compact PP assembly | Selected slurry point-of-use or delivery positions after particle-distribution and solids-loss validation |
| Capsule filter | Application-matched sourcing | PTFE, PP or PES membrane options with PP or HDPE structures | Low-flow DI water, compatible acid/base or solvent duties, pilot tools and process development |
| Laboratory and pilot filter | Application-matched sourcing | Small PTFE disc or capsule formats with low-hold-up flow paths | Electronic-chemical research, sample preparation, small batch and pilot-scale screening |
High-purity gas particle-control families
Quotation-confirmed gas filter routes include PTFE/polyolefin and all-fluoropolymer cartridges, stainless membrane filters, porous-metal or porous-alumina filters and compact component-protection formats. Chamber vent diffusers and flow restrictors are presented separately as gas-path protection components, not as particle filters.
Compare the detailed gas filter and gas-path protection families →
Gas purification families
Point-of-use inert-gas and process-gas purifier routes are selected from the exact gas, inlet impurity load, target outlet specification, flow, pressure, duty profile, written compatibility and project safety review.
Review the gas filter versus purifier selection workflow →
Filter-housing families
| Product family | Portfolio route | Construction route | Initial application screen |
|---|---|---|---|
| PP single-cartridge housing | Application-matched sourcing | Non-metallic polypropylene wetted path | Water and compatible dilute chemical filtration where connection, seal and pressure envelope are confirmed |
| PFA single-cartridge housing | Application-matched sourcing | PFA wetted path with compatible locking and sealing materials | Selected strong acid, base, wet etch and cleaning chemistry positions |
| High-pressure stainless single-cartridge housing | Application-matched sourcing | 304 or 316L stainless body | Compatible liquid or gas service requiring a higher-pressure housing route |
| Compact stainless single-cartridge housing | Application-matched sourcing | 304 or 316L stainless body with serviceable closure | General small-flow filtration where material, seal and connection suitability are confirmed |
Application-to-family map
| Application | Zhongfu engineered · Made in China | Quotation-confirmed routes | Key qualification question |
|---|---|---|---|
| Electronic chemical production and CDS | All-fluoropolymer and semi-fluoropolymer cartridges | PP, PES, modified-wettability PTFE and compatible housings | Which stage—prefilter, recirculation, final, packaging or facility delivery—sets the particle load and hydraulic limit? |
| Wet etch and clean | PTFE/PFA cartridges and integrated PFA filters | Modified-wettability PTFE/PFA routes and PFA housings | What are the chemical, concentration, temperature, pressure and tool connection? |
| Photoresist, developer and photochemical service | HDPE, nylon and compact 0.5 L / 1 L POU filters | UPE, PES, capsule, laboratory and complementary compact formats | Is the qualification target a hard particle, gel, microbubble, extractable or defect mechanism? |
| CMP slurry production and delivery | Hydrophilic nylon cartridge | Graded-depth PP and integrated PP formats | How will oversize removal be balanced against the intended abrasive distribution and solids content? |
| UPW, process water and post-process rinse | Application review against compatible Zhongfu families | PP, hydrophilic PES and compact capsule formats | What are the cleanliness target, flow, pressure drop, temperature and validation method? |
| Bulk and process-gas distribution | — | PTFE membrane, all-fluoropolymer, stainless membrane, porous-metal filters and gas-specific purifiers | What is the exact gas, flow, pressure, fitting, installation position and contamination target? |
| Vacuum tools and chamber venting | — | Vent diffusers, compact gas filters and component-protection formats | What chamber, vent time, pressure profile, thermal condition and particle-risk criterion apply? |
| Laboratory, pilot and small-batch work | Application review against compatible Zhongfu families | Disc, capsule and compact liquid filters | How much hold-up, sample loss, flow and documentation can the development process accept? |
Information required for a product-family match
- Process medium: chemical and SDS, concentration, formulation family or exact gas.
- Contamination target: particle, gel, agglomerate, molecular impurity or vent-flow behaviour.
- Process position: production, bulk, final, recirculation, CDS, point of use, gas panel or chamber.
- Operating envelope: normal and peak flow, viscosity, pressure, allowable pressure drop and temperature.
- Mechanical interface: housing, length, fitting, seal, bracket and available installation space.
- Qualification: current model, test method, acceptance criteria, sample quantity and required documents.
- Commercial context: quantity, destination, required date and requested Incoterm.
No single family is suitable for every chemical or gas. Retention, cleanliness, metal-ion release, service life, gas compatibility and purifier capacity require configuration-specific evidence.