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Schematic of a liquid filter bag showing ring seam and media

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Comparison Guide

Bag Filters Compared With Cartridge Filters

Compare liquid filter bags and pleated bag cartridges. Learn when each is right for your process, and how they fit standard SBS swing bolt housings.

Use a liquid filter bag when handling high dirt loads, oily feeds, or where low cost per unit and fast change-out are priorities. Bags are ideal for bulk solids removal in pre-treatment stages like RO pretreatment, chemical processing, and paint lines.

  • Filter bags handle high dirt loads with low pressure drop
  • Bags are lower cost per unit than cartridges
  • Use bags for coarse filtration where the next stage tolerates some particle carryover
  • Bags are best in high flow, low pressure drop applications

Related product: Liquid Filter Bags

Choose a pleated bag style cartridge when you need longer service life, higher efficiency, or a sealed change-out without contaminant release. These cartridges fit existing bag housings and offer better retention than plain bags.

  • Pleated bag cartridges last up to three times longer than plain bags
  • Inside-out flow traps contaminants during change-out
  • Higher filtration efficiency with consistent pore size
  • Compatible with standard #1 and #2 bag housings
Schematic of a liquid filter bag showing ring seam and media
Schematic of a liquid filter bag showing ring seam and media

Related product: HFBH Bag Style High Flow Filter Cartridges

SBS swing bolt housings accept both plain bags and pleated bag cartridges. The housing design allows quick change-out and high pressure operation. The same housing can be used with either a bag or a cartridge if the dimensions match.

  • SBS series housings accept #1, #2, #3, and #4 size bags
  • Same housing can be used with plain bags or pleated bag cartridges
  • Swing bolt closure enables fast, secure change-out
  • Housings rated to 150 psi with NPT, BSP, or flanged connections

Related product: Pleated Bag High Flow Filter Cartridges

Material choice determines chemical and temperature resistance. PP and PE bags handle up to 80℃, nylon up to 180℃, and PTFE up to 260℃. Pleated bag cartridges use polypropylene and glass fiber media with a max temperature of 80℃.

  • PP and PE bags: max 80℃
  • NMO nylon bags: max 180℃
  • PTFE bags: max 260℃
  • Pleated bag cartridges: max 80℃
  • All materials resist a broad range of chemicals

Related product: SBS Swing Bolt Bag Filter Housings

FAQ

Questions On This Topic

Can I use a pleated bag cartridge in my existing SBS swing bolt housing?
Yes, if the housing is #1 or #2 size. The HFBH series cartridges are designed to fit these housings without modification.
What micron ratings are available for the pleated bag cartridges?
Available ratings are 1μm, 5μm, 10μm, 20μm, 30μm, 50μm, 70μm, and 100μm.
What materials are used in the pleated bag cartridges?
Core and cage: polypropylene. Media: polypropylene or glass fiber. O-rings: EPDM, Buna, or silicone.
What is the maximum temperature for the pleated bag cartridges?
80℃. This matches the maximum temperature for PP and PE materials used in the construction.
How do I get a sample to test a cartridge in my housing?
Tell us your housing model and the cartridge code you want to test, and we will quote a sample set.

Still Deciding Between Two Options

Send your housing model, the fluid and what sits downstream. We will tell you which of the two we would fit and why.