Multi-Bag Housings for Ultra-High Volume Industrial Flow

When flow rates exceed the capacity of a single filter, multi-bag housings provide a robust and scalable solution. These large-scale pressure vessels can hold anywhere from two to twenty-four filter bags in a single unit, allowing for flow rates of thousands of cubic meters per hour. Multi-bag systems are common in the petrochemical, municipal water, and mining industries, where bulk sediment removal is a constant requirement. The strength of these systems lies in their ability to maintain a low initial pressure drop even while processing heavily contaminated fluids, ensuring that the pumps operate within their optimal efficiency range.

The engineering of a multi-bag housing focuses on flow distribution and sealing integrity. Inside the vessel, a flow-divider plate ensures that the incoming fluid is distributed equally among all the bags, preventing any single bag from becoming overwhelmed and failing prematurely. To prevent bypass, each bag is seated into a precision-machined support basket. High-performance housings utilize a spring-loaded "hold-down" device that keeps the bags firmly in place even under the turbulent flow conditions common in heavy industrial applications. This ensures that 100% of the fluid is forced through the media.

Maintenance of these large systems is simplified through the use of mechanical aids. Most multi-bag housings are equipped with a davit arm or a hydraulic lift for the heavy lid, allowing for easy access to the filter bags. Because bag filters are a "containment" technology—meaning all the dirt stays inside the bag—the internal surfaces of the housing remain clean during a change-out. This reduces the time needed for cleaning the vessel and prevents cross-contamination between batches. For high-volume processes that require a simple, effective, and high-capacity filtration solution, the multi-bag housing is an indispensable asset.