Filter Plates

Recessed Filter Plates are a standard and widely used design in modern filter presses. Each plate has a molded recessed area that forms a chamber when two plates are clamped together. This design allows for efficient solid-liquid separation without the need for separate frames.

At N.M. Patel & Co., we offer recessed plates in various sizes and materials, ideal for general-purpose industrial applications requiring dependable filtration.

Key Features:

• Made from high-quality polypropylene or other durable materials
• Supports cake thickness options ranging from 25 mm to 50 mm
• Lightweight, corrosion-resistant, and low maintenance
• Suitable for manual, semi-automatic, and automatic filter presses

Applications:

Effluent treatment, food processing, dyes, chemicals, and more

Membrane Filter Plates feature a flexible membrane that inflates after the initial filtration to squeeze the filter cake, reducing moisture content and cycle time. This advanced design ensures higher efficiency in demanding applications.

At N.M. Patel & Co., our membrane plates are available in PP or rubber membrane configurations and are built to withstand high pressures and frequent squeezing cycles.

Key Features:

• Efficient cake dewatering with secondary compression
• Operates with air or water inflation up to 15–30 bar
• Available in recessed or CGR (gasketed) styles
• Designed for reduced cycle time and improved productivity

Applications:

Pharmaceuticals, mining, food & beverage, sludge treatment

CGR Plates are engineered with integrated gaskets to ensure a leak-proof seal around the filtration area. This makes them ideal for processes requiring zero leakage, product containment, and high-purity output.

N.M. Patel & Co. offers CGR plates in standard and membrane formats, designed for safe and clean operation even with toxic or valuable liquids.

Key Features:

• Leak-proof operation with molded-in gaskets
• Available in a range of sizes and materials
• Suitable for high-pressure and corrosive applications
• Compatible with recessed or membrane plates

Applications:

Fine chemicals, API manufacturing, hazardous waste, dyes

Heat-Stabilized Filter Plates are polypropylene plates specially formulated to withstand elevated temperatures during filtration, cake washing, or CIP cycles. They retain structural integrity and performance under thermal stress.

At N.M. Patel & Co., we manufacture heat-stabilized plates for industries where hot fluids or high-temperature slurries are part of the process.

Key Features:

• Temperature resistance up to 120–130°C
• Available in recessed, CGR, and membrane formats
• Maintains shape and sealing under repeated thermal cycles
• Ideal for hot washing and steam cleaning environments

Applications:

Edible oils, hot chemical filtration, CIP/SIP systems

High-Pressure Filter Plates are reinforced to operate at higher filtration pressures (up to 30 bar or more), making them suitable for fine, compressible, or slow-draining slurries. These plates are critical for industries where low cake moisture is a priority.

At N.M. Patel & Co., we offer both recessed and membrane high-pressure plates tailored to your process demands.

Key Features:

• Built for filtration pressures above 16 bar
• Rugged design with internal supports or metal reinforcement
• Compatible with automated systems and high-duty cycles
• Ensures reduced moisture content in challenging applications

Applications:

Mining, pigments, clay, ceramics, ZLD systems

The Plate and Frame Filter Plate is a classic design consisting of solid plates and hollow frames. This system is highly versatile and allows for detailed inspection and easy cleaning between cycles, making it ideal for lab-scale or specialty applications.

N.M. Patel & Co. continues to offer precision-built plate and frame systems for customers who require flexibility and ease of maintenance.

Key Features:

• Traditional design with alternating plates and frames
• Suitable for viscous, sticky, or high-purity slurries
• Easy manual cleaning and cloth replacement
• Available in various materials including CI, PP, and SS

Applications:

Pharma, pigments, food-grade products, lab testing

We offer filter plates in a variety of Materials of Construction (MOC) to suit highly specialized and corrosive environments:

• Cast Iron (CI) – Durable and economical for general-purpose use
• Stainless Steel (SS 304/316) – Ideal for hygienic, corrosive, or high-purity processes
• PTFE-Coated – Exceptional chemical resistance and non-stick properties
• Aluminium – Lightweight and corrosion-resistant
• UHMW (Ultra-High Molecular Weight Polyethylene) – Offers superior abrasion and chemical resistance

Applications:

Electroplating, acids, pharma, dyes, high-corrosion zones

Rubber Membrane Plates are membrane plates equipped with a flexible rubber diaphragm instead of polypropylene. They offer better flexibility, higher squeezing force, and longer life in continuous-duty cycles.

N.M. Patel & Co. supplies rubber membrane plates for aggressive and high-performance filtration setups.

Key Features:

• Greater elasticity for better cake squeezing
• Excellent resistance to fatigue and high cycle counts
• Withstands tough slurries and pressure fluctuations
• Often used in combination with CGR design for leak-proof sealing

Applications:

Mining, steel plants, pigments, ceramic processing