In the field of industrial liquid filtration, efficiency and reliability are paramount. Whether in water treatment, chemical processing, or food and beverage production, the ability to remove contaminants effectively while maintaining high throughput directly impacts product quality and operational costs. Hangzhou Shuidun Technology Co., Ltd. (Jiadun-Tech), a professional manufacturer with deep expertise in water treatment components, offers a range of High Flow Bag Filter Housings designed to accommodate standard filter bag sizes #1 through #4. These housings represent a blend of robust engineering, thoughtful design, and material excellence, providing a versatile and dependable solution for diverse filtration challenges .
I. Product Concept: Versatile Filtration for High-Volume Applications
Bag filter housings are the core of a bag filtration system, containing and supporting the filter bags that physically capture suspended particles from a liquid stream. The liquid enters the housing, flows through the filter bag from the inside out (or outside in, depending on design), and the bag retains contaminants, allowing the clarified liquid to exit . Shuidun's High Flow Bag Filter Housings are engineered to accommodate the four industry-standard bag sizes-#1, #2, #3, and #4-each with distinct flow capacities and dimensional characteristics .
| Filter Bag Size | Dimensions (D x L) | Typical Flow Area | Approx. Flow Rate (Water) |
|---|---|---|---|
| #1 | Ø178mm x 420mm (7" x 16.5") | 0.24 m² | ~90 GPM (20,000 L/hr) |
| #2 | Ø178mm x 810mm (7" x 32") | 0.48 m² | ~200 GPM (40,000 L/hr) |
| #3 | Ø102mm x 230mm (4" x 8") | 0.08 m² | ~25 GPM (6,000 L/hr) |
| #4 | Ø102mm x 410mm (4" x 14") | 0.16 m² | ~45 GPM (12,000 L/hr) |
Data compiled from standard industry references .
II. Core Materials and Construction: Built for Durability
1. Premium Stainless Steel Construction
The housings are constructed from high-grade stainless steel, with SUS304 as the standard option and SUS316L available for applications requiring enhanced corrosion resistance, such as those involving saltwater or aggressive chemicals . This material selection ensures longevity, structural integrity under pressure, and compliance with hygiene standards for food and pharmaceutical applications.
2. Robust Mechanical Design
The housings are designed to withstand demanding industrial conditions. They typically feature:
Maximum Operating Pressure: Capable of handling pressures up to 150 PSI (approx. 1.0 MPa) .
Temperature Range: Suitable for a wide temperature range, commonly from 4°C to over 100°C, depending on the sealing material used .
Surface Finish: The exterior can be finished with mirror polishing or sandblasting to meet aesthetic, hygiene, or corrosion-resistance requirements .
III. Key Design Features for Performance and Convenience
1. Versatile Inlet/Outlet Configurations
To facilitate easy integration into existing piping systems, Shuidun offers housings with multiple connection options. These include standard flange connections, quick-connect fittings, and threaded ports. The housings are also available with different flow orientations, such as side-in, side-out designs, which are common in multi-bag systems . This flexibility ensures the housing can be adapted to various plant layouts.
2. Secure Sealing and Bag Retention
A critical feature of any bag filter housing is its ability to prevent bypass-where unfiltered liquid escapes around the filter bag. Shuidun's designs incorporate a reliable sealing mechanism, often using a Viton® or EPDM O-ring, to ensure a tight seal between the cover and the housing body . Inside, a perforated support basket (or filter bag basket) holds the filter bag, preventing it from collapsing under differential pressure. The bag is secured, often using a bag pressing plate or a steel ring system, to ensure it remains properly seated and that all liquid passes through the filter media .
3. Quick-Opening Options for Efficiency
For applications requiring frequent bag changes, many housings can be equipped with quick-opening covers. These may use a V-clamp locking mechanism or a swing bolt (davit arm) design that allows a single operator to open and close the vessel rapidly without specialized tools, significantly reducing downtime and maintenance costs .
4. Multi-Bag Configurations for Higher Flow
While a single-bag housing can handle moderate flow rates, Shuidun's product line extends to multi-bag housings that can hold 2, 3, 4, or more bags. This configuration is essential for large-scale operations, as it multiplies the filtration area and total flow capacity. For example, a 4-bag housing using #2 bags could theoretically handle flow rates up to 160,000 L/hr, providing a compact and cost-effective solution for high-volume applications .
IV. Applications and Advantages
The versatility of the High Flow Bag Filter Housing makes it suitable for a wide range of industries :
Water Treatment: Pre-filtration and polishing in municipal, industrial, and wastewater plants.
Chemical Processing: Filtration of various chemicals, solvents, and intermediates.
Food and Beverage: Clarifying juices, beverages, and process water.
Pharmaceuticals: Filtration of active ingredients and final product polishing.
General Industry: Coolant filtration, paint and coating filtration, and oil processing.
V. Company Strength and Commitment
Hangzhou Shuidun Technology Co., Ltd. is an established manufacturer with a focus on water treatment and filtration components. The company holds an ISO9001-2008 Quality Management System certificate and the necessary hygiene and safety permits for water treatment products, underscoring its commitment to quality and safety. Its manufacturing facilities are located in Fuyang, Hangzhou, benefitting from a strategic position for logistics and production. With a focus on advanced design, research, and intelligent manufacturing, Shuidun provides a comprehensive range of filtration solutions, from membrane housings to bag filters, backed by a dedicated team committed to customer service and technical support.
In summary, Shuidun's High Flow Bag Filter Housing offers a durable, reliable, and highly adaptable platform for industrial liquid filtration. With its robust stainless steel construction, compatibility with industry-standard bags, and flexible design options, it provides an effective and efficient solution for protecting downstream equipment, ensuring product quality, and maintaining smooth, continuous operations.
