ZDLM Electric Compact Sleeve Control Valve receives a direct current signal from the regulating instrument, changing the flow rate of the regulated medium, and keeping the controlled process parameters at the set value. It is widely used in the production automation control of industrial sectors such as electric power, metallurgy, chemical engineering, petroleum refining, pharmaceuticals, and papermaking. The nominal diameters of this series of products range from 20 to 300mm, and the nominal pressures are 1.6, 4.0, and 6.4MPa. The received signals are 0 - 10mA.DC or 4 - 20mA.DC, and the operating temperature range is -40°C - 450°C. Among them, the electric single-seat control valve is suitable for occasions with small pressure differences, relatively large medium viscosity or slightly granular media; the electric sleeve control valve is suitable for occasions with large pressure differences and large leakage amounts.
The main technical parameters are as follows:
| Parameter | Specification |
|---|---|
| Nominal Diameter DN (mm) | 20; 10, 12, 15, 20, 25, 32, 40, 50, 65, 80, 100, 125, 150, 200, 250, 300 |
| Rated Flow Coefficient Kv |
Linear: 1.82, 2.84, 4.46, 9.11, 17.67, 27.54, 44.69, 110, 176, 275, 440, 690, 1100, 1760; Equal Percentage: 1.62, 2.54, 6.31, 10.16, 25, 40, 63, 100, 160, 250, 400, 630, 1000, 1600 |
| Rated Stroke L (mm) | 10, 16, 25, 40, 60, 100 |
| Nominal Pressure PN (MPa) | 1.6, 4.0, 6.4 |
| Inherent Flow Characteristic | Linear, Equal Percentage |
| Inherent Adjustable Ratio R | 50: 1 |
| Allowable Leakage Amount |
Single Seat: Hard Seal: Class Ⅳ; Soft Seal: Class Ⅵ; Sleeve: Hard Seal: Class Ⅱ; Soft Seal: Class Ⅵ |
| Operating Temperature (°C) | -20 - 200, -40 - 250, -40 - 450, -60 - 450 |
| Signal Range (mA.DC) | 0 - 10, 4 - 20 |
| Power Supply Voltage | 220V, 50Hz |
| Action Mode | In case of failure: Full Close, Full Open, Self-locking Position |
