Control Valve / Multiport Valve
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This page explains how Rotary Piston/Disc is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.
A rotating sealing element within control valves that regulates fluid flow by rotating to open, close, or redirect passages.
Technical details and manufacturing context for Rotary Piston/Disc
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Nominal Diameter | 15–600 mm | Standard pipe sizes for valve connectionISO 6708 |
| Operating Pressure | 1.0–1.6 MPa | Below 1.0 MPa the seat load is insufficientISO 5208 |
| Operating Temperature | -40–85 °C | Seat material limits the upper temperature |
| Leakage Rate | 0.01–0.1 % of rated flow | Class VI seat leakage for soft-seated valvesISO 5208 |
| Flow Coefficient (Kv) | 2.5–2500 m³/h | Determines valve sizing for required flowIEC 60534-2-3 |
| Actuation Torque | 5–500 N·m | Required for manual or automated operation |
| Seat Material Hardness | 60–90 Shore A | Softer seat improves sealing but reduces wear lifeISO 7619-1 |
| Body Material | WCB, CF8, CF8M | Select for pressure, temperature, and corrosionASTM A216, A351 |
| Disc Material | CF8, CF8M, 316L | 316L for corrosive mediaASTM A351, A276 |
| Seat Material | PTFE, PEEK, NBR | PTFE for chemical resistance, PEEK for high temperatureASTM D3294, D6262 |
| Weight | 5–500 kg | Depends on size and material; affects installation |
| Face-to-Face Dimension | 130–850 mm | Critical for pipeline installationISO 5752 |
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 Rotary Piston/Disc.
This component is essential for the following industrial systems and equipment:
| pressure: | Up to 100 bar |
| flow rate: | 0.1 to 1000 m³/h |
| temperature: | -20°C to 200°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.
1 company lists 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.
Common materials include stainless steel, carbon steel, bronze, PTFE-coated metals, and ceramic composites. The choice depends on the application's pressure, temperature, and corrosion requirements.
The operating pressure range is 1.0–1.6 MPa, and the operating temperature range is -40–85 °C. These are reference values; actual limits depend on the specific model and seat material.
The leakage rate is specified as a percentage of rated flow, typically 0.01–0.1% for soft-seated valves, per ISO 5208. This indicates the allowable leakage when the valve is closed.
Relevant standards include ISO 6708 for nominal diameter, ISO 5208 for pressure and leakage, IEC 60534-2-3 for flow coefficient, ISO 7619-1 for hardness, ASTM A216/A351 for body material, ASTM A351/A276 for disc material, ASTM D3294/D6262 for seat material, and ISO 5752 for face-to-face dimensions. Always verify compliance with the manufacturer.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
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