Filter bags are sewn or welded bag-shaped filter elements made from PP, PE, Nylon monofilament or non-woven felt media, used with single-bag or multi-bag housings as the preferred choice for high-flow, low-cost pre-filtration. Compared with pleated cartridges, filter bags offer high dirt-holding capacity, easy changeout, and reusability (felt excluded), reducing operating cost by 60% or more.
Two product lines are offered by performance: Standard Grade — felt non-woven media at 1–200μm rated retention for general particulate capture; Absolute Grade — melt-blown or thermally-bonded media with ≥99% single-pass retention efficiency for GMP pharmaceutical, chemical point-of-use, and semiconductor pre-filtration. Anode bags for plating use PP or Nylon media qualified for acidic, alkaline and electrolyte environments.
Typical applications: chemical reactor feed pre-filtration, paint and ink clarification, PCB plating bath anode isolation, display fab high-flow water reclaim, food & beverage syrup clarification, oilfield production fluid and frac fluid filtration, and wastewater treatment feed pretreatment.
Frequently Asked Questions
Difference between standard and absolute-grade filter bags?
Can filter bags be reused?
Why use Nylon or PP for plating anode bags?
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