This page explains how Disc/Seat Assembly is classified within Fabricated Metal Product Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.
The critical sealing interface within a pressure relief valve that opens to release excess pressure and closes to maintain system integrity.
Technical details and manufacturing context for Disc/Seat Assembly
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Nominal Diameter | 15–100 mm | Standard sizes for pressure relief valves |
| Set Pressure | 0.1–1.6 MPa | Pressure at which the valve starts to openISO 4126-1 |
| Operating Temperature | -40–200 °C | Seat material limits the upper rangeISO 4126-1 |
| Leakage Rate | 0.01–0.1 cm³/min | Class VI seat leakage per ISO 5208ISO 5208 |
| Seat Hardness | 40–50 HRC | Hardness affects wear resistanceASTM E18 |
| Surface Roughness | 0.2–0.4 µm Ra | Critical for sealing performanceISO 4287 |
| Seat Material | 316L | Corrosion-resistant stainless steelASTM A240 |
| Disc Material | 316L | Same as seat for uniform thermal expansionASTM A240 |
| Weight | 0.5–5.0 kg | Depends on size and material |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
Commonly used trade names and technical identifiers for Disc/Seat Assembly.
| pressure: | Up to 10,000 psi (690 bar) |
| flow rate: | Cv values from 0.01 to 100 |
| temperature: | -50°C to 400°C |
| slurry concentration: | Up to 20% solids by weight |
Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.
Quoted from the published standard.
2 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.
Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.
A practical evidence checklist for RFQ preparation and supplier evaluation.
CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.
The materials on file include stainless steel, alloy steel, and brass. The seat and disc material is specified as 316L stainless steel, but other materials may be available depending on the application. Always confirm with the manufacturer.
The operating pressure range is 1.0 to 1.6 MPa. The set pressure range is 0.1 to 1.6 MPa. These are reference values; verify for your specific model.
Relevant standards include ISO 4126-1 for safety valves, ASTM E18 for hardness, ISO 4287 for surface roughness, and ASTM A240 for stainless steel material. These are references for verification, not certifications.
Signs of wear or leakage, such as increased leakage rate or failure to reseat properly, indicate maintenance may be needed. Regular inspection and testing per the manufacturer's recommendations are essential. Always consult the supplier for specific maintenance intervals.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.
Compare manufacturer profiles with relevant product and process capability.