Filtration FAQ

A filter press is a pressure-driven filtration device designed to separate solids from liquids. It consists of multiple plates covered with filter cloths that trap solid particles while allowing the clear liquid (filtrate) to flow through. Filter presses are widely used across industries such as chemicals, pharmaceuticals, food and beverage, mining, wastewater treatment, and many others.

Want to learn more about how filter presses work and their benefits? Reach out to our team or visit our website.

Selecting the right filter press size depends on several key factors:

At N.M. Patel & Co., we assist you in choosing the ideal size and design that perfectly fits your operation.

Plate & Frame Filter Press: This is the traditional style, best suited for fine particles and thick slurries. It allows easy visual inspection between plates.

Recessed Chamber Filter Press: A modern design offering faster filtration cycles, reduced maintenance, and better compatibility with automation.

Sidebar Filter Press: Plates slide along side beams, making it cost-effective and compact. It’s ideal for smaller to medium-sized operations.

Overhead Filter Press: Plates hang from a top beam, providing easier access for cloth inspection and maintenance, often preferred in automated or hygienic environments.

We manufacture both types and can help you pick the best fit for your space, capacity, and workflow.

Watch out for these warning signs:

Regular maintenance helps avoid unexpected downtime and prolongs the life of your press.

Typical issues include:

Our experts are available to diagnose and fix these problems quickly to keep your process running smoothly.

Membrane filter presses use inflatable membranes (air or water) that squeeze the cake after filtration, leading to:

They are ideal for fine solids, rapid processing, and processes sensitive to moisture levels.

Precoat involves applying a thin layer of filter aid (like diatomaceous earth or activated carbon) on the cloth before starting filtration. This step:

Manual presses are typically operated with a screw jack or a hand-operated hydraulic pump. Correct handling during opening and closing ensures safety, avoids plate misalignment, and protects the filter cloth from damage.

Yes! Many filter presses are designed with expansion capabilities via distance pieces that allow adding more plates to increase cake volume. Our process includes:

Contact the team at N.M. Patel & Co. for expert advice, service assistance, and customized filter press solutions tailored to your needs.