Electric Three-Way Control Valve Product Overview
Our electric three-way control valve is composed of the PSL series and 3810 series linear electric actuators and a three-way control valve body. The electric actuator features an integrated electronic structure with a built-in servo amplifier. By inputting a control signal (4-20mA DC or 1-5V DC) and power supply, the valve opening can be controlled to regulate process parameters such as pressure, flow, level, and temperature. The electric three-way control valve is characterized by sensitive operation, simple wiring, high flow capacity, compact size, and high regulation accuracy. Its control accuracy and performance are significantly improved compared to the DKZ type. The electric three-way control valve offers advantages such as high regulation accuracy and stable, reliable operation. The electric three-way mixing valve is primarily used to mix two fluids into a third fluid; the electric three-way diverting valve is mainly used to split one fluid into two streams. The electric three-way control valve can replace two mutually switching single-seat or double-seat control valves and is used for regulating and controlling media such as liquids, gases, and steam.
Electric Three-Way Control Valve Technical Parameters
| Nominal Diameter (DN) | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 |
|---|
| Seat Diameter (dn) | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 |
| Rated Flow Coefficient (KV) | Diverting Valve | 6.3 | 8.5 | 13 | 21 | 34 | 53 | 85 | 135 | 210 | 340 | 535 | 800 | 1360 |
| Mixing Valve | - | - | - | - | - | - | 85 | 135 | 210 | 340 | 535 | 800 | 1360 |
| Allowable Pressure Difference (MPa) | 3.5 | 3.2 | 2.2 | 2.2 | 1.4 | 1.38 | 0.94 | 0.61 | 0.51 | 0.36 | 0.2 | 0.19 | 0.13 |
| Nominal Pressure (MPa) | 1.6, 2.5, 4.0, 6.4, 10.0 |
| Rated Travel (mm) | 16 | 25 | 40 | 60 | 100 |
| Bonnet Type | Standard Type (-17 to +250°C), High-Temperature Type (+250 to +450°C), Low-Temperature Type (-40 to -196°C), Bellows Seal Type (-40 to +350°C) |
| Gland Type | Bolted Gland |
| Sealing Packing | V-Type PTFE Packing, V-Type Flexible Graphite Packing |
| Plug Type | Double-Guided Sleeve Plug |
| Flow Characteristic | Linear, Equal Percentage |
| Matching Actuator Type | 381L Series Electric Actuator, PSL Series Electric Actuator (Other Brand Actuators Can Be Specified) |
| Actuator Parameters | Power Supply: 220V/50Hz, Input Signal: 4-20mA or 1-5V DC, Output Signal: 4-20mA DC |
| Protection Class: Equivalent to IP55, Explosion-Proof Mark: ExdⅡBT4 (ExdⅡBT6 Customized), Manual Operation: Handwheel |
| Ambient Temperature: -25 to +70°C, Ambient Humidity: ≤95% |
Electric Three-Way Control Valve Performance Indicators
| Item | Indicator Value |
|---|
| Basic Error % | With 3810L ±2.5; With PSL ±1.0 |
| Hysteresis % | With 381L ±2.0; With PSL ±1.0 |
| Dead Zone % | 1.0 |
| Start-End Point Deviation % | Electric Open | Start Point ±2.5 | End Point ±2.5 |
| Start Point ±2.5 | End Point ±2.5 |
| Electric Close | Start Point | ±2.5 |
| End Point | ±2.5 |
| Rated Travel Deviation % | ≤2.5 |
| Leakage L/h | 0.01% × Valve Rated Capacity |
| Adjustable Range R | 30:1 |
Electric Three-Way Control Valve Component Materials
| Lower Valve Body | WCB (ZG25) | CF8 (304) | CF8M (316) | CF3M (316L) |
|---|
| Gasket | PTFE / Metal Graphite Gasket |
| Valve Seat | 304 | 304 | 316 | 316L |
| Valve Body | WCB (ZG25) | CF8 (304) | CF8M (316) | CF3M (316L) |
| Plug Assembly | 304 | 304 | 316 | 316L |
| Sealing Middle Gasket | 304 | 304 | 316 | 316L |
| Guide Sleeve | 304 | 304 | 316 | 316L |
| Bonnet | WCB (ZG25) | CF8 (304) | CF8M (316) | CF3M (316L) |
| Packing | PTFE / Flexible Graphite |
| Gland | WCB (ZG25) | CF8 (304) | CF8M (316) | CF3M (316L) |
Electric Three-Way Control Valve Connection Dimensions Diagram
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| Electric Three-Way Control Valve (With Imported 381 Actuator) | Electric Three-Way Control Valve (With Imported PS Actuator) |
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Electric Three-Way Control Valve Connection Dimensions
| Nominal Diameter (DN) | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 |
|---|
| L | PN16/25 | 180 | 185 | 200 | 220 | 250 | 275 | 305 | 350 | 410 | 450 | 550 | 670 | 770 |
| PN40 | 185 | 190 | 210 | 230 | 255 | 285 | 310 | 355 | 425 | 460 | 560 | 690 | 795 |
| PN64 | 190 | 200 | 220 | 240 | 265 | 295 | 320 | 370 | 400 | 475 | 570 | 752 | 819 |
| H | PN16/25 | 140 | 140 | 150 | 160 | 180 | 200 | 222 | 230 | 270 | 280 | 306 | 474 | 584 |
| PN40 | 140 | 140 | 150 | 160 | 180 | 200 | 222 | 230 | 270 | 280 | 306 | 474 | 584 |
| PN64 | 150 | 160 | 170 | 180 | 200 | 220 | 240 | 260 | 300 | 322 | 380 | 495 | 605 |
| H1 | 155 | 155 | 175 | 180 | 200 | 235 | 250 | 260 | 330 | 350 | 420 | 530 | 680 |
| H2 | 3810L | 373 | 373 | 495 | 495 | 495 | 700 | 700 | 700 | 725 | 725 | 725 | 725 | 725 |
| PSL | 465 | 465 | 465 | 465 | 465 | 560 | 560 | 560 | 560 | 560 | 788 | 788 | 788 |
| D | 3810L | 225 | 225 | 225 | 225 | 225 | 257 | 257 | 257 | 310 | 310 | 310 | 310 | 310 |
| PSL | 177 | 177 | 177 | 177 | 177 | 182 | 182 | 182 | 182 | 182 | 218 | 218 | 218 |
Electric Three-Way Control Valve Product Selection
(1) Valve Body Parameters: Nominal diameter, working pressure, process medium, application, valve body material, and other series parameters.
(2) Actuator Parameters: Actuator type, control method, control signal (4-20mA, 1-5V), action mode (air-to-open, air-to-close).
Please provide the above technical parameters in as much detail as possible to facilitate accurate selection by our production and technical personnel. If you have any questions, you can call us, and we will do our best to provide you with high-quality service!
