Editorial Technical Reference

Filter Plates

This page explains how Filter Plates is classified within Chemical Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

Perforated plates that support filter media and allow filtrate passage in filtration presses.

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Product Specifications

Technical details and manufacturing context for Filter Plates

Definition

Filter plates are structural components used in industrial chemical filtration presses. They provide mechanical support for filter cloths or membranes while allowing filtered liquids to pass through their perforated surfaces. These plates create the necessary pressure chambers for solid-liquid separation processes. Typically manufactured from polypropylene or stainless steel, filter plates are available in a range of sizes and configurations to suit different filtration requirements. Key parameters include operating pressure (1.0–1.6 MPa), plate dimensions (500–2000 mm), thickness (20–60 mm), hole diameter (5–20 mm), open area ratio (15–35%), flatness tolerance (±0.5 mm per ISO 2768-mK), surface roughness (3.2–6.3 μm Ra per ISO 4287), operating temperature (-10 to 120 °C), material grades (PP, PVDF, 304, 316L per GB/T 14484 and ASTM A240), and weight (15–80 kg). These values are reference ranges and must be verified for the specific model and application. Filter plates are selected based on chemical compatibility, pressure requirements, and filtration fineness. They are installed in a filter press frame and operate under hydraulic pressure to form sealed chambers. Proper selection and maintenance are critical for efficient solid-liquid separation. Always confirm model-specific values and standards with the legal manufacturer or supplier.

Working Principle

Filter plates are arranged in series within the press frame. When the press closes under hydraulic pressure, the plates form sealed chambers containing the slurry. As pressure is applied, liquid passes through the filter media and plate perforations while solids are retained, forming filter cakes between adjacent plates. The plates must maintain flatness and sealing integrity to ensure uniform pressure distribution and prevent leakage. Over time, wear or deformation can affect performance, so regular inspection is necessary.

Common Materials

Polypropylene, Stainless Steel

Technical Parameters

Parameter	Typical range	Notes & selection driver
Plate Dimensions	500–2000 mm	Custom sizes available
Thickness	20–60 mm	Thicker for higher pressure
Hole Diameter	5–20 mm	Smaller for finer filtration
Open Area Ratio	15–35 %	Higher for lower pressure drop
Flatness Tolerance	±0.5 mm	Ensures uniform sealingISO 2768-mK
Surface Roughness	3.2–6.3 μm Ra	Smoother for easy cake releaseISO 4287
Operating Temperature	-10–120 °C	Higher for special materials
Material Grade	PP, PVDF, 304, 316L	Select based on chemical compatibilityGB/T 14484, ASTM A240
Weight	15–80 kg	Depends on size and material

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Plate Surface Part
Provides filtration area and supports filter media

Material: Polypropylene/Stainless Steel
Perforations Part
Allows passage of filtrate while retaining solids

Material: Same as plate material
Sealing Edge Part
Creates pressure-tight seal between adjacent plates

Material: Rubber/Elastomer

Manufacturers of Filter Plates

Manufacturer profiles associated with Filter Plates.

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Procurement Evaluation Criteria

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Technical documentation

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Manufacturing capability

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Inspection readiness

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Frequently Asked Questions

What materials are filter plates available in?

According to the directory, filter plates are available in polypropylene and stainless steel. Material grades listed include PP, PVDF, 304, and 316L, but you should confirm the exact grade with the supplier based on chemical compatibility.

What is the operating pressure range for filter plates?

The reference operating pressure range is 1.0 to 1.6 MPa. Always verify the actual pressure rating for your specific plate model.

How do I choose the right filter plate size?

Plate dimensions range from 500 to 2000 mm, with thickness from 20 to 60 mm. Selection depends on the filtration area required and the press frame capacity. Custom sizes may be available, but confirm with the manufacturer.

What maintenance is required for filter plates?

Regularly inspect plates for flatness, surface roughness, and signs of wear or deformation. Ensure sealing surfaces are clean and undamaged. Replace plates if they no longer meet the specified tolerances or if filtration performance degrades.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Up to 25 bar (typical), 50 bar (high-pressure designs)
flow rate:	Dependent on open area percentage (typically 30-60%) and plate thickness
temperature:	-10°C to +120°C
slurry concentration:	Up to 70% solids by weight

Filter Plates

Product Specifications

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Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards