A weir plate is a precision-engineered barrier used in overflow weirs and drainage systems to control liquid levels and flow rates in industrial processes.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Crest Length | 100-2000 mm | |
| Height Range | 50-500 mm | |
| Mounting Type | Bolted or welded flange | |
| Surface Finish | Ra 1.6 μm or better | |
| Pressure Rating | Atmospheric to 2 bar | |
| Material Thickness | 3-12 mm | |
| Operating Temperature | -20°C to 150°C |
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
A combined overflow and drainage component for stainless steel washing tanks that regulates liquid level and facilitates drainage.
A hydraulic structure within a separation chamber or launder designed to regulate and control the flow rate of liquids.
A raised barrier on distillation trays that controls liquid flow and maintains liquid level.
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The three primary types are rectangular (sharp-crested), V-notch (triangular), and trapezoidal (Cipolletti) weirs, each offering different flow characteristics and measurement accuracy for various applications.
Flow rate is calculated using standard hydraulic formulas based on crest geometry and liquid head. For rectangular weirs: Q = C × L × H^(3/2), where Q is flow rate, C is discharge coefficient, L is crest length, and H is head above crest.
Regular inspection for debris accumulation, corrosion checks, verification of crest sharpness (for sharp-crested weirs), and calibration against flow measurement standards to ensure accuracy.
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