A perforated plate is a precision-engineered component with strategically placed holes used for uniform fluid or gas distribution in industrial processes.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Open Area | 5% to 40% | |
| Hole Pattern | Staggered, square, triangular | |
| Hole Diameter | 0.5 mm to 10 mm typical | |
| Surface Finish | Ra ≤ 1.6 μm (for hygienic applications) | |
| Plate Thickness | 1 mm to 20 mm | |
| Flatness Tolerance | ±0.1 mm/m |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is used in the following industrial products
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A perforated plate is a general component with holes for distribution, while a sparger is a specific assembly that includes a perforated plate (or multiple plates) designed to introduce gas into a liquid, often with additional features like nozzles or manifolds for bubble generation.
Open area percentage is calculated as (total area of all holes / total plate area) × 100%. It depends on hole diameter, number of holes, and pattern. For example, in a triangular pattern: Open Area = (π × d² × N) / (4 × A_plate), where d is hole diameter, N is number of holes, and A_plate is plate area.
Common failures include corrosion (especially at hole edges), erosion from high-velocity particles, fouling or clogging from deposits, mechanical deformation under pressure, and improper hole alignment during installation leading to uneven flow.
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