Stainless Steel Bag Filter Housing for Industrial Use

STARK Stainless Steel Bag Filter Housing – Single Bag Type (D219×400mm)

The STARK D219×400mm stainless steel bag filter housing is a robust and efficient solution for precision liquid filtration in industrial and commercial applications. Designed for flow rates between 3–5 tons per hour, this single-bag housing features SUS304 stainless steel construction, compact footprint, and a stable support base for vertical installation.

With G1" threaded inlet and outlet ports aligned on the same side, and internal compatibility with 180×430mm filter bags (5μm standard), this filter system is ideal for water treatment, chemicals, and light industry processes.

Detailed Description

The STARK D219×400mm stainless steel bag filter housing is purpose-built for industrial-scale liquid filtration where reliability, hygiene, and ease of maintenance are essential. Designed as a vertical single-bag system, it delivers stable throughput between 3–5 tons per hour, making it suitable for water purification, food and beverage prefiltration, electroplating liquid recycling, and general industrial process lines.

Constructed from high-grade SUS304 stainless steel, the housing body undergoes precision TIG welding and surface treatment to ensure corrosion resistance, extended lifespan, and cleanability in demanding environments. The external surface is brush-finished to reduce visual wear and support hygienic inspection.

The cover features a quick-release swing bolt system with four stainless eye-nuts, enabling fast bag changes without the need for tools. The top-mounted lid includes lifting ears for easy handling, and an O-ring seal groove provides reliable leak-proof performance even under fluctuating pressure.

To simplify pipeline installation and save space, both the inlet and outlet ports (G1" external thread) are aligned on the same side of the vessel. This design minimizes connection dead zones and is compatible with both vertical and horizontal flow circuits.

The internal bag seat accepts 180×430mm filter bags (with 5μm pore size standard), ensuring wide compatibility with industry-standard filtration media. A precision-welded support mesh basket (optional) is available to maintain filter bag stability and integrity under high flow conditions.

At the base, the housing is supported by a pair of welded stainless legs with pre-drilled M10 anchor plates for secure floor mounting. The drain port, gauge mount, and optional three-way ball valve interface make cleaning and pressure monitoring more efficient.

Whether integrated into a water treatment skid, chemical dosing system, or standalone filtration unit, this model offers an ideal balance of performance, durability, and operability — trusted by STARK clients worldwide.

Technical Specifications

Parameter Specification
Model D219×400mm (Single-bag type)
Flow Rate 3–5 T/H
Filter Bag Size 180×430mm (5μm standard)
Material SUS304 stainless steel (SUS316L optional)
Surface Finish Brushed exterior
Inlet/Outlet G1" male thread (both ports on same side)
Wall Thickness 1.5mm (cylinder), 2.0mm (end cap)
Cover Locking 4 swing bolt clamps with eye nuts
Support Base Stainless steel legs with M10 anchor plates
Auxiliary Ports Drain port and pressure gauge mount
Optional Features Support basket, 3-way valve

Applicable Industries

STARK stainless steel bag filter housings are engineered for demanding industrial environments where durability, hygiene, and performance are essential. Below are key industries where our filtration solutions are widely applied:

1. Water Treatment & Reverse Osmosis Systems

Used as a critical pre-filtration step before reverse osmosis and ultrafiltration units. These housings capture large particulates and sediment, protecting high-value RO membranes and reducing cleaning frequency. Common in municipal water projects, industrial process water systems, and containerized desalination units.

2. Food & Beverage Processing

Ideal for filtering liquid food ingredients such as edible oils, syrup, dairy, juice, and fermentation broths. The stainless steel structure ensures hygienic operation, CIP compatibility, and resistance to high-temperature sanitization. Frequently used in bottling plants and beverage concentrate lines.

3. Chemical & Petrochemical Industry

Widely adopted in filtration of acids, alkalis, organic solvents, and corrosive liquids. STARK housings are compatible with customized internals and chemical-resistant components, offering robust solutions for fluid purification in reaction vessels and chemical distribution systems.

4. Pharmaceutical & Biotechnology

Provides secure and sterile filtration for purified water loops, cleaning solutions (CIP/SIP), and injectable preparations. Built from SUS316L upon request, these housings meet cleanroom requirements and are validated for GMP compliance in global pharmaceutical production sites.

5. Electroplating & Surface Finishing

Essential for removing fine particulates and metallic residues from plating baths, prolonging chemical service life, and maintaining coating consistency. Stainless steel construction ensures longevity and compatibility with acidic plating solutions.

6. Textile & Dye Manufacturing

Applied in dye solution filtration, removing color residues, suspended fibers, and impurities from processing water and dye concentrates. Helps improve fabric quality and reduce equipment clogging in continuous dyeing systems.

7. Paint, Ink & Resin Applications

Used in pigment dispersion, ink production, and resin blending lines. Bag filter housings prevent nozzle blockages and improve the consistency of coatings and print materials. High-viscosity liquids are handled with optional pressure-rated configurations.

8. Electronics & Semiconductor Cooling

In semiconductor fabs and precision electronics assembly, these filters help maintain ultra-clean cooling water by removing micro-contaminants and metallic flakes, ensuring reliable thermal management and preventing fouling in closed-loop systems.

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