DL Series Compact Closed-Loop Bag Filter with Integrated Reinforced Mesh Basket

The DL Series Compact Bag Filter is engineered for production environments where floor space is at a premium. Its innovative structural design delivers full-scale filtration performance in a footprint that is 40% smaller than conventional bag filter housings of equivalent capacity, while the fully enclosed closed-loop system ensures operator safety and product integrity.

The DL Series achieves its space efficiency through a vertically integrated housing design that combines the filter chamber, inlet manifold, and outlet collection into a single compact unit. This eliminates the need for separate buffer tanks and reduces interconnecting piping, further shrinking the installation footprint.

• Zero Electrical Consumption: As a purely pressure-driven device, the DL Series requires no electrical power for operation, relying entirely on upstream process pressure to drive filtration.
• Minimal Material Waste: Filter bag replacement captures nearly all retained solids with minimal product loss, reducing both waste disposal costs and raw material consumption.
• Closed-Loop Integrity: The fully enclosed design prevents product evaporation, oxidation, and contamination, eliminating the need for additional inert gas blanketing in most applications.
• Low Maintenance Burden: With no rotating parts, motors, or complex seals, the DL Series requires only periodic filter bag changes and O-ring inspection.

Recommended for: Small to medium-scale edible oil processors, pilot plant operations, and facilities upgrading existing lines where additional equipment must fit within constrained layouts. Often deployed after centrifugal separation as secondary fine filtration for polishing edible oils, fruit juices, and specialty chemicals.

The DL Series compact bag filter delivers full filtration capability in a reduced footprint. Use this guide to ensure it meets your capacity requirements:

A: The compact single-bag DL model handles up to 30 m³/h, compared to 50 m³/h for a standard 2-bag unit. However, two compact units in parallel can match or exceed a single standard unit while offering the flexibility to isolate one for maintenance without stopping production. The compact design achieves the same filtration efficiency per bag as the standard model.

A: Bag capacity is determined by filter area, not housing volume. The compact model uses standard-size filter bags with the same solids-holding capacity as standard models. Bag change frequency depends on your solids loading and flow rate—not the housing dimensions. You will not change bags more often with the compact model.

A: Absolutely. The compact footprint and lightweight design make it ideal for mobile filtration carts. We offer optional caster wheel mounting plates and quick-connect hose fittings. This is particularly valuable in multi-product pilot plants and R&D facilities where a single filter serves multiple process stations.

A: Filtration performance—micron rating, flow per bag, solids capacity per bag—is identical to standard DL Series models. The only trade-off is that the compact single-bag unit cannot be expanded to multi-bag configuration within the same housing. Plan for parallel units if higher capacity is needed later.

A: Remove the filter bag, close the cover, and circulate cleaning solution through the housing. The closed-loop design is fully CIP-compatible. The smaller internal volume actually reduces CIP solution consumption by 30-40% compared to standard housings—a meaningful cost and waste reduction over time.