Bag Filter Suppliers for Data Centers - Felt & Mesh Filter Bags

Felt filter bags utilize depth filtration to trap particulate throughout the fiber structure, achieving high dirt-holding capacity and up to 99% particle removal across 1 to 200 microns. Mesh filter bags deliver precise surface filtration from 1 to 1500 microns with defined retention, low clean pressure drop, high mechanical strength, and reusable options for high-flow cooling applications.

Filter bags are supplied in nylon, polyester, and polypropylene media, alongside specialty materials. Polypropylene provides broad chemical compatibility and food-contact compliance per FDA 21 CFR 177.1520. Polyester and nylon options offer mechanical durability and elevated temperature resistance, with select mesh configurations capable of handling operating temperatures reaching up to 450 degrees Fahrenheit.

Flow rates vary depending on bag size, filter media, and micron rating. Felt filter bags support flow capacities ranging from 5 to 150 GPM per bag. Mesh filter bags accommodate flow rates between 5 and 175 GPM per bag. Multiple bags can be manifolded in multi-bag filter vessels to support higher facility flow demands.

Both felt and mesh filter bags operate at system pressures up to 100 psi, depending on the specific bag construction and housing configuration. Recommended operating pressure differential ranges from 1 to 30 psi for felt media and 1 to 35 psi for mesh bags before cleaning or replacement is required to maintain steady flow rates.

By capturing suspended solids, dirt, rust, and pipe scale from chilled water, condenser water, and closed cooling loops, filter bags prevent particulate accumulation on heat transfer surfaces. This filtration reduces abrasive wear on pumps and valves, prevents clogged heat exchangers, lowers maintenance downtime, and helps cooling systems maintain optimal heat dissipation efficiency.

Yes, mesh filter bags made from monofilament or multifilament weaves offer reusable configurations for high-flow cooling systems. Their robust mechanical strength allows them to be washed and reinstalled when capturing coarse contaminants, helping facility managers reduce consumable waste and maintenance overhead while maintaining defined particle retention and low initial pressure drop across critical cooling loops.