When to change a filter cartridge: differential pressure and service life
When to change a filter cartridge based on differential pressure: what ΔP measures, clean and change-out ΔP, warning signs, and how to log it batch by batch.
Industries
Wine filtration: cartridges and housings for wineries
From the first coarse filtration to final filtration before bottling: mesh, polypropylene, glass microfiber, and membrane cartridges, and the housings to hold them, made in Argentina.
What is filtered and why
Filtering wine means spreading the load. Each stage removes something different—coarse solids, turbidity, colloids, yeasts, and bacteria—and protects the next one. The better the prefiltration works, the longer the final membrane lasts and the less each bottled liter costs.
Membrane cartridges for wineries (the LifePure and UltraPure F&B versions) are integrity tested at the plant and supplied with diffusive flow and bubble point values so the winery can test them again. They withstand hot water sanitization at 80 °C, chemical sanitization, and steam-in-place, so they are reused from one batch to the next.
A staged filtration train
Clarification with polypropylene or glass microfiber, a hybrid prefilter, and a final membrane: each stage protects the next.
Yeast and bacteria retention
The final membranes state retention > 10⁷/cm² of Saccharomyces cerevisiae at 0.65 µm and of Serratia marcescens at 0.45 µm.
Integrity you can verify at the winery
Diffusive flow and bubble point values to test the wetted membrane before and after filtration.
Sanitizable and reusable
Hot water at 80 °C, cleaning and disinfecting chemicals, and steam-in-place, according to each model's catalog.
Stage by stage
The process and the product for each stage
Coarse filtration and rough clarification
Pleated 304 stainless steel mesh, from 12 to 500 µm, that is washed and returned to the line. Heat-welded, adhesive-free, and suitable for contact with food and beverages.
Clarification and prefiltration
Pleated polypropylene (absolute rating of 0.5 to 20 µm in the ProFlow Plus) and high-capacity glass microfiber for turbidity and colloids.
Final filter protection
Hybrid prefilters—glass microfiber or polypropylene with a final PES membrane—and a 0.65 µm PES membrane for yeasts.
PreFiber GF + PESGlass microfiber + PES membrane cartridge PreFiber PP + PESDual-layer PP + PES membrane cartridge PreFiber Max GF + PESGlass microfiber + PES membrane cartridge PreFiber A PP + PESAbsolute-rated dual-layer PP + PES cartridge 
LifePure WPES membrane cartridge for beer and wine LifePure W GradedPES membrane cartridge for beer and wine Final filtration before the filler
Microbial stabilization of wine and unpasteurized alcoholic beverages with PES or nylon 6,6 membranes.
Housings
Single-cartridge or multi-element for 3 to 36 cartridges in AISI 304, and for a single double-open-end cartridge in AISI 316L.
Frequently asked questions
Wine industry: common questions
What pore size is used for final wine filtration?
It depends on the wine, its load, and what you need to retain. As a reference, the LifePure and UltraPure catalogs state retention greater than 10⁷/cm² of Saccharomyces cerevisiae at 0.65 µm and of Serratia marcescens at 0.45 µm. We work it out with you based on the wine and the process.
How can the life of the final filter be extended?
With good prefiltration. Clarification with polypropylene or glass microfiber and a hybrid prefilter (PreFiber) ahead of the final membrane reduce the load reaching the membrane and extend its service life.
Can the cartridges be reused between batches?
Yes. Membrane cartridges for wineries withstand hot water sanitization at 80 °C, chemical sanitization, and steam-in-place. It is advisable to integrity test the wetted membrane before each final filtration.
Which housing do I need to filter wine?
The SaniFlow STE-01 holds one 10″ to 40″ cartridge, in AISI 304 with a ≤ 0.8 µm Ra finish. For higher flow rates, the multi-element STE-X holds 3 to 36 cartridges.
Technical blog
Articles for wine industry
AISI 304 vs. 316L stainless steel in sanitary equipment: differences and when to use each
AISI 304 vs. 316L stainless steel in sanitary equipment: molybdenum, carbon and welding, chlorides, passivation, Ra finish, and when to use each one.
Filter cartridge integrity test: bubble point and diffusive flow
How a filter integrity test works on a cartridge: bubble point, diffusive flow, and pressure hold, how to wet the membrane, and when to run the test.
Talk to engineering
Shall we design the filtration train for your winery?
Tell us the fluid, the flow rate and the operating conditions. We reply with the model, the ordering code and the technical documentation.