Precision Flow Controller
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This page explains how Control Valve 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 valve used to regulate fluid flow rate, pressure, or direction within a system.
Technical details and manufacturing context for Control Valve
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Nominal Diameter | DN15–DN300 mm | Select based on required flow capacity.ISO 6708 |
| Flow Coefficient (Cv) | 0.1–1000 US gal/min | Determines flow capacity at given pressure drop.IEC 60534-2-1 |
| Operating Temperature | -20–200 °C | Outside range, seals may fail.IEC 60534-1 |
| Leakage Class | Class IV–VI | Class VI for bubble-tight shutoff.IEC 60534-4 |
| Actuator Type | Pneumatic, Electric, Hydraulic | Pneumatic for fast response, electric for remote control. |
| Control Signal | 4–20 mA | Standard analog signal for positioners.IEC 60534-1 |
| Supply Voltage | 24 V DC ±10% V | For electric actuators.IEC 60534-1 |
| Ingress Protection | IP54–IP65 | IP65 for outdoor installation.IEC 60529 |
| Body Material | WCB, CF8, CF8M | CF8M for corrosive media.ASTM A216, A351 |
| Trim Material | 304, 316, 316L | 316L for high corrosion resistance.ASTM A276 |
| End Connections | Flanged, Threaded, Welded | Flanged for easy maintenance.ISO 7005, ASME B16.5 |
| Weight | 5–500 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.
This component is essential for the following industrial systems and equipment:
| pressure: | Up to 6000 psi |
| flow rate: | Cv range: 0.01 to 1000 |
| temperature: | -20°C to +200°C |
| slurry concentration: | Up to 40% 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.
12 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 practical evidence checklist for RFQ preparation and supplier evaluation.
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A control valve regulates the flow rate, pressure, or direction of a fluid in a system. It does this by varying the size of the flow passage, which is achieved by moving a closure member relative to a seat. This allows precise control over process variables such as flow, pressure, temperature, or liquid level.
Common actuator types are pneumatic, electric, and hydraulic. Pneumatic actuators are often used for fast response, electric for remote control, and hydraulic for high force applications. The choice depends on the application requirements, such as speed, force, and availability of power sources.
The flow coefficient (Cv) indicates the flow capacity of the valve at a given pressure drop. It is used for sizing the valve to ensure it can handle the required flow rate. A higher Cv means a larger flow capacity. The Cv value must be selected based on the process conditions and desired flow rate.
Leakage class is defined by standards such as IEC 60534-4. It indicates the allowable leakage through the valve when closed. Class VI provides bubble-tight shutoff. To verify, you should refer to the manufacturer's documentation and test reports, and confirm that the valve meets the required class for your application.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
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