JWI Filter Press: History, Operation, and Replacement Options by Met-Chem

JWI (J-Press) has been a well-known name in the filter press industry for decades, providing high-quality dewatering equipment for various industries, including chemical processing, mining, food and beverage, and wastewater treatment. JWI was later acquired by US Filter, which was then acquired by Siemens, and eventually became part of Evoqua Water Technologies. Over the years, JWI filter presses have been widely used in industrial applications due to their durability and efficiency in separating solids from liquids.

Many facilities still operate older JWI filter presses. However, as these systems age, replacement parts become harder to find, and full system replacements may be required. Fortunately, Met-Chem provides custom-built replacement filter presses and all essential parts to keep your operation running smoothly.

A filter press is a batch-operated dewatering system used to separate solids from liquids in industrial and wastewater treatment applications. It works by pumping slurry into the press, where solids are captured between filter plates, and clean liquid is expelled.

Key Steps in Filter Press Operation:

1. Filling: The slurry is pumped into the filter press chambers.
2. Filtration: Solids accumulate on the filter cloths while liquid passes through and exits.
3. Compression: A hydraulic system applies pressure to remove additional moisture from the solids.
4. Cake Release: Once filtration is complete, the filter plates are separated, and the solid "cake" is discharged.
5. Cleaning & Reset: The press is cleaned, and the process begins again.

Filter presses are known for their high efficiency, producing dry filter cakes while recovering valuable liquids for reuse or disposal.

If your facility operates an aging JWI filter press, Met-Chem can provide a high-quality replacement designed to match or exceed the performance of your existing system. Our custom-built filter presses are designed to integrate seamlessly into your current setup, minimizing downtime and optimizing filtration efficiency.

Why Choose Met-Chem for Your JWI Filter Press Replacement?

• Custom-Built Solutions: Designed to match your existing system and operational needs.
• Durability & Quality: Built with high-quality materials for long-lasting performance.
• Competitive Pricing: Cost-effective replacement options with excellent value.
• Fast Lead Times: We prioritize quick turnaround times to reduce downtime.
• Comprehensive Support: Our team assists from consultation to installation.

For those looking to maintain their existing JWI filter press, Met-Chem provides a full range of replacement parts:

• Filter Press Cloths: Essential for capturing solids while allowing liquids to pass through. Available in various materials and weave patterns for different applications.
• Filter Press Plates: Recessed, gasketed, or plate-and-frame plates designed to fit JWI filter presses.
• Filter Press Gasketing: Prevents leaks and ensures a tight seal between plates, available in multiple materials including Viton for high-temperature applications.
• Filter Press Center Feed Pipe: Directs slurry into the press, available in custom sizes to fit your JWI unit.
• Filter Press Cylinder: Hydraulic cylinders provide the necessary pressure for efficient filtration and cake release.
• Filter Press Hydraulics: Complete hydraulic systems, including pumps and valves, to maintain optimal press operation.

Whether you need replacement parts or a full filter press replacement, Met-Chem has the expertise and inventory to keep your operation running efficiently. Contact us today to learn more about our JWI filter press solutions!