A cover plate is a removable sealing component in pressure vessel manway assemblies that provides access while maintaining structural integrity and pressure containment.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Diameter | 400-600 mm (typical) | |
| Thickness | 25-50 mm | |
| Surface Finish | Ra 3.2 μm minimum for gasket seating | |
| Number Of Bolts | 8-16 (depending on size) | |
| Pressure Rating | 10-50 bar (design) | |
| Temperature Range | -20°C to 300°C | |
| Bolt Circle Diameter | As per flange standard |
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 standardized manway assembly providing safe, pressure-tight access to the interior of metal tanks, reservoirs, and pressure vessels.
A removable access point on a hopper body for visual inspection, maintenance, and cleaning of internal contents.
A protective enclosure housing electrical connections and terminals for an exhaust fan assembly.
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4 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.
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A cover plate is specifically designed for manway access with features like lifting lugs and hinge points for easy removal, while a blind flange is a permanent closure without access functionality. Cover plates have reinforced construction for frequent opening/closing cycles.
Gaskets should be replaced every time the cover plate is opened, or according to manufacturer specifications. Visual inspection for compression set, cracks, or chemical degradation should be performed during maintenance intervals.
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