A valve disc is the movable sealing element in a pressure reducing valve that regulates downstream pressure by modulating flow through the valve seat.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Diameter | 10-200 mm | |
| Leakage Class | ANSI/FCI 70-2 Class IV or VI | |
| Surface Finish | Ra ≤ 0.8 μm for sealing surfaces | |
| Pressure Rating | Up to 600 psi (4.1 MPa) | |
| Temperature Range | -20°C to 200°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 valve that automatically reduces a higher inlet pressure to a steady lower outlet pressure regardless of flow variations.
A pressure relief device designed to automatically open and discharge fluid when pressure exceeds a predetermined set point to prevent equipment failure.
The core sealing and flow control component within a steam trap that opens and closes to discharge condensate while preventing steam loss.
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The valve disc modulates flow through the valve seat to maintain a constant downstream pressure by opening or closing in response to pressure changes.
Choose based on fluid compatibility, pressure, temperature, and corrosion requirements—e.g., stainless steel for general use, PTFE for chemicals, or coated alloys for high wear.
Wear, corrosion, erosion, or fouling can cause leakage, sticking, or inaccurate pressure control, requiring inspection and replacement.
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