Corrosion-Resistant Bag Filter Housings for Aggressive Chemical Applications

Skytech Ultrafab PVC Bag Filter Housings are manufactured from high-grade chemical-resistant polyvinyl chloride for use in aggressive acid, alkali, electroplating, semiconductor, and water treatment filtration systems where metallic housings would corrode. Available in single-bag size 1 and size 2 configurations with UPVC body, swing-bolt or quick-opening closure, and PP or PVDF basket. Pressure ratings up to 6 bar and temperatures up to 60°C with flanged, threaded, and sanitary connections available. Ideal for battery manufacturing, PCB etching, fertiliser, and chemical storage filtration.

What Is a PVC Bag Filter Housing?

A PVC bag filter housing is a liquid filtration vessel fabricated from polyvinyl chloride or unplasticised PVC (UPVC) instead of stainless steel or carbon steel. The chemical resistance of PVC to acids, alkalis, salts, and many oxidising agents makes it the correct choice for bag filtration of process liquids that would corrode or contaminate products in contact with metallic housings. PVC housings accept standard size 1 and size 2 liquid filter bags and provide the same filtration function as metallic housings at lower cost and with better chemical durability in corrosive service.

Features and Benefits

• UPVC Chemical Resistance: Unplasticised PVC resists hydrochloric acid, sulphuric acid, caustic soda, chlorine solutions, and most inorganic salts — covering the majority of aggressive chemical service applications
• PP and PVDF Basket Options: Polypropylene basket for general acid and alkali service; PVDF (Kynar) basket for higher chemical resistance and temperature requirements in oxidising chemical environments
• Pressure Rating up to 6 bar: UPVC housing rated to 6 bar operating pressure — sufficient for the majority of gravity-fed and low-pressure pump-driven chemical filtration applications
• Standard Bag Compatibility: Housings accept all standard size 1 (7×16 inch) and size 2 (7×32 inch) liquid filter bags — no proprietary bag formats required
• Swing-Bolt Quick Opening: Swing-bolt closure design enables rapid bag replacement without tools — reducing filter maintenance time and chemical exposure to maintenance personnel during bag changes
• Multiple Connection Options: BSP/NPT threaded, PVC-flanged, and CPVC sanitary connections available — matching the piping system connection type and material used in the chemical process line

Technical Specifications

Applications

• Electroplating and PCB: Acid and alkali process solution filtration in electroplating tanks, PCB etching lines, and metal surface treatment systems where metallic housings contaminate the process bath
• Battery Manufacturing: Electrolyte and process acid filtration in lead-acid and lithium-ion battery manufacturing where sulphuric acid and other aggressive chemicals are processed
• Chemical Storage and Transfer: Bag filtration on chemical storage tank outlet lines and chemical transfer pump suction systems handling acids, alkalis, and inorganic salt solutions
• Water and Effluent Treatment: Chlorinated water, acid dosing, and chemical effluent filtration where PVC construction avoids contamination from metallic housing corrosion products
• Fertiliser Manufacturing: Phosphoric acid, ammonium nitrate, and fertiliser solution filtration where the corrosive nature of process chemicals makes UPVC the preferred housing material

Why Choose Skytech Ultrafab for PVC Bag Filter Housing?

• True Chemical Resistance: UPVC housing construction provides genuine chemical resistance — not a coated or lined metallic housing that can fail if the lining is damaged during bag changes or cleaning
• PVDF Basket Available: PVDF basket option extends the chemical resistance of the filter internals beyond the capability of PP — covering highly oxidising and high-temperature acid service
• Complete Piping Compatibility: PVC-flanged and CPVC sanitary connections match the PVC piping systems commonly used throughout chemical, electroplating, and semiconductor process facilities
• Cost-Effective vs Exotic Metals: PVC housing delivers adequate chemical resistance for most acid and alkali service at a fraction of the cost of Hastelloy, titanium, or exotic alloy metallic bag filter housings
• Immediate Availability: Standard size 1 and size 2 PVC bag filter housings held in stock for same-week dispatch — essential for maintenance teams dealing with unplanned housing failure in chemical plant operations