Liquid Filter Cartridges

Positioning

Liquid filter cartridges remove particles or separate phases from process liquids, using membrane (PP/PVDF/PTFE) or metal (SS304/SS316L/Ti) media. Fluid chemistry, temperature and chemical compatibility decide the media grade before micron rating is even considered.

What it is

Liquid filter cartridges remove particles or separate phases from process liquids, using membrane (PP/PVDF/PTFE) or metal (SS304/SS316L/Ti) media.

Technical depth

Membrane cartridges use PP, PVDF or PTFE membranes with PP/PET/PTFE/PVDF cores and 215/222/226/DOE end-caps, in 5–70-inch lengths, with O-ring materials from silicon to EPDM, Viton and FEP. Metal cartridges use SS304, SS316L or titanium in sintered or woven-mesh form, with filtration ratings from 1 to 100 μm and diameters of 20/38/60 mm or custom. The correct sequence is to name the fluid, temperature and chemical compatibility first, because that decides membrane versus metal before any micron rating is considered; then confirm micron rating, flow rate and the end-fitting style. The membrane and metal families serve different chemistries and temperatures, so the media choice is a compatibility decision as much as a filtration decision. End-cap and O-ring styles are not cosmetic: they must match the housing seal, and a mismatched end-fitting leaks regardless of micron rating.

Selection guidance

• Specify the fluid, temperature and chemical compatibility to choose the right membrane or metal grade.
• Confirm the micron rating and flow rate.
• For metal cartridges, specify sintered vs woven-mesh construction and end-fitting type.

Procurement notes

• Name the fluid, temperature and chemical compatibility — this decides membrane versus metal before any other field.
• Confirm micron rating and flow rate.
• For metal cartridges, specify sintered versus woven-mesh construction and the end-fitting type.

From a sourcing perspective

Our advice on liquid cartridges is to lead with the fluid, not the filter. We recommend naming the fluid, temperature and chemical compatibility first, because that decision — membrane versus metal — is made before micron rating or flow rate is even relevant, and getting it wrong fails the element regardless of efficiency. From a sourcing perspective, confirm the micron rating and flow rate next, and for metal cartridges specify sintered versus woven-mesh construction and the end-fitting type, since those drive both performance and price. This is a compatibility-led category where the media choice is as much a chemical decision as a filtration one. This is a compatibility-led category, so lead with the fluid before the micron rating. For metal cartridges, specify sintered versus woven-mesh construction and the end-fitting type, since those drive performance and price. A mismatched end-fitting leaks regardless of micron rating, so confirm the end-cap and O-ring styles against the housing.