Bulk-gas membrane filter
Hydrophobic PTFE membrane with polyolefin support for compatible compressed-air, process-air or gas particle-control duties after gas review.
Particle control · impurity control
Semiconductor gas filtration and purification.
Gas filters and gas purifiers solve different contamination problems. Zhongfu screens application-matched sourced products by gas, target contaminant, normal and peak flow, pressure, connection and installation position before confirming a brand, model and commercial route.
Gas filterParticle controlMedia and hardware selected by gas duty
Gas purifierMolecular impurity controlTarget species and inlet load must be defined
InstallationPOU · inline · bulkPosition changes flow and system design
Commercial boundaryConfirmed per quotationBrand, model, territory and availability
First decision
Decide whether the contaminant is a particle or a molecular impurity.
A particle filter is not a substitute for a purifier. Gas filtration is used to control solid contamination carried in the gas stream. Gas purification targets specified molecular contaminants through a gas- and impurity-specific purification mechanism.
Some systems require both functions at different positions. Define the contamination problem and the installation point before requesting a product match.
Do not assume that a purifier is compatible with every gas or target impurity. Product selection, capacity and outlet target depend on the exact gas composition, inlet contaminant load, flow, pressure and operating mode.
FILTERStart with gas identity, particle target, flow, pressure, connection and required materials.
PURIFIERAdd each inlet impurity, concentration/load and target outlet specification.
POUConfirm tool, available envelope, local flow profile and installation interface.
BULKConfirm normal/peak demand, redundancy, pressure loss, utilities and facility integration.
Integrated gas portfolio
Match the product family to the gas-path function.
Every route below is application-matched sourcing. Manufacturer, model, country of origin, written gas compatibility and availability are confirmed per quotation.
Particle-filter families
All-fluoropolymer gas cartridge
PTFE membrane with PFA structure, considered only where written compatibility covers the exact gas, purity, temperature, pressure, seal and connection.
Compact stainless membrane filter
Small-footprint membrane route for compatible tool-side and specialty-gas particle-control positions.
Medium-flow stainless membrane filter
Inline membrane route for gas panels and distribution positions after exact-gas and hydraulic review.
High-flow stainless membrane filter
Larger-flow membrane route for facility or high-demand positions with pressure-loss screening.
Porous-metal gas filter
316L stainless or nickel porous-media routes for gas- and model-specific service within written pressure and temperature limits.
Sintered-tube gas filter
Tubular sintered-metal route for selected high-pressure or elevated-temperature duties within written model limits.
Porous-alumina gas filter
Inert alumina media in a stainless housing for selected gas duties with written compatibility for the exact gas and operating envelope.
Top-mount gas filter
Compact metal filter route intended for integration and service access inside compatible gas-delivery assemblies.
Compact gasket filter
Porous stainless media in a compact sealing format for particle protection near valves, mass-flow controllers and gas-panel components.
Gas-path and chamber protection components
Vacuum-chamber vent diffuser
Porous stainless diffuser for controlled gas entry into load locks, transfer, cooling or process chambers where turbulence and particle redistribution are reviewed.
Filtered backfill diffuser
Application-specific backfill component combining controlled gas entry with a separately verified particle-control function.
Porous-metal flow restrictor
Calibrated porous stainless flow path for a defined flow-protection function in gas lines or manifolds; it does not replace a shutoff or safety system.
Point-of-use purification families
POU inert-gas purifier
Gas-specific impurity removal near a tool or analytical point, selected from gas, inlet load, outlet target, flow, pressure and duty profile.
POU process-gas purifier
Application-matched purification for an exact process gas, subject to written compatibility, safety review and end-use documentation.
Oxidising, corrosive, reactive, pyrophoric and toxic gas service requires manufacturer documentation for the exact gas and concentration, plus project safety review. Temperature and pressure limits are family- and gas-specific.
See these gas routes inside the complete process selection matrix →
Map the gas path from source to tool
Bulk supply, facility distribution, valve manifold boxes, gas cabinets and tool point of use can require different products. Record where contamination is introduced or must be controlled, and whether the project is a new system, a replacement or a capacity change.
- Bulk or facility: provide average and peak demand, line pressure, allowable pressure loss, redundancy and utility constraints.
- Inline or point of use: provide the tool or subsystem position, fitting, envelope, gas exposure and local flow profile.
- Replacement: provide the full current part/model, manufacturer datasheet revision and a clear label photo.
- New project: provide the gas-system specification or BOM and required project documents.
Information that changes the answer
| Input | For filtration | For purification |
|---|---|---|
| Gas | Identity, concentration and compatibility requirements | Identity, grade, composition and operating mode |
| Contaminant | Particle size/retention target and test requirement | Each inlet impurity, concentration or total load, and target outlet |
| Flow | Normal and maximum flow | Normal, peak and duty profile |
| Pressure | Inlet pressure and allowable pressure drop | Inlet/outlet pressure and allowable pressure drop |
| Interface | Connection, line size, orientation and envelope | Connection, line size, installation and facility interfaces |
| Decision | Particle criterion and required documents | Outlet criterion, monitoring/validation and required documents |
Sourced-product and supply boundary
Gas filtration and purification products on this page are an application-matched sourced portfolio, separate from Zhongfu engineered liquid filters. The manufacturer, brand, specific model, documentation, territory, export/end-use conditions, availability and commercial terms are confirmed for each quotation.
No local office, local warehouse, stock position or delivery time is implied by this page. Product performance must be verified against the current manufacturer datasheet and the final approved configuration.
Start with a gas condition or full model
For a new selection, send the information in the table plus quantity, destination and required date. For a replacement, send the complete model or label photo and explain whether the objective is a like-for-like supply check, an alternate source, a capacity change or a new gas duty.
Define the gas, contaminant and flow.
We will confirm the missing inputs before matching a product or system route.