Valve seats are precision sealing surfaces in hydraulic manifolds that ensure leak-free operation by providing a tight seal between moving valve components and stationary housing.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Hardness | 45-60 HRC for metal seats | |
| Leakage Rate | Zero detectable leakage per ISO 10770-1 | |
| Surface Finish | Ra 0.4 μm or better | |
| Pressure Rating | Up to 420 bar | |
| Temperature Range | -40°C to 120°C | |
| Dimensional Tolerance | ±0.01 mm |
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 practical evidence checklist for RFQ preparation and supplier evaluation.
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Common failure causes include abrasive wear from contaminated fluid, cavitation erosion, thermal cycling stress, improper installation torque, and material incompatibility with hydraulic fluids.
Inspect during routine maintenance every 1,000-2,000 operating hours or annually. Replace if surface imperfections exceed 0.05 mm depth or leakage is detected during pressure testing.
Minor surface imperfections can sometimes be lapped, but replacement is recommended for significant wear, cracks, or deformation to ensure reliable sealing performance.
Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.