First, the electric two-way valve working principle The
drive is driven by a reversible synchronous motor, and with a magnetic
clutch. The motor produces a magnetic effect through the motor rotor
and the clutch, producing a steady torque when stopped. Therefore, when
the motor is no current can stably stop at any point, when the valve is
fully open or fully closed when the magnetic clutch, stop adjusting. The
signals from the drive's incremental or proportional controls enable
the motor to rotate clockwise or counterclockwise.
Second, the electric valve features
24V AC voltage reversible reversible motor. 1000 Newton force. Limit
magnetic clutch. Movement using gear transmission, the output gear screw
group rotates around the central axis of the plane rolling bearings,
the valve shaft is the use of the central screw pipe and the positioning
of the wafer. Valve actuator position indicator. Fire-proof ABS plastic
cover. Can be attached to the manual lever. Site installation
easy. Suitable for direct stroke valve below 23mm.
1, the actuator used cast aluminum bracket and plastic shell, small size, light weight.
2, the choice of permanent magnet synchronous motor, and with a hysteresis clutch mechanism, with reliable self-protection.
3, suitable for a variety of control signals: incremental (floating point), voltage (0 ~ 10V), current (4 ~ 20mA).
4, with 0 ~ 10V or 4 ~ 20mA feedback signal (optional).
5, transmission gear with metal gears, greatly improving the service life of the drive.
6, low power consumption, output power, noise.
7, the valve body cast copper, cast iron, ductile iron a variety of
materials to choose from, in order to suit different working media and
temperature requirements.
8, the valve body has two threaded connections and flanges, easy to install.
9, the body structure of the form: two-way valve (single seat), two-way balance valve (balanced).
Third, the main electric two-way valve connection size
| model | specification | L | H | H1 | D | C | K | nd | Pressure difference KPa | Weight (KG) | stroke |
| VB-7000 | DN65 | 290 | 158 | 150 | 185 | 20 | 145 | 4-18 | 400 | 23 | 45 |
| DN80 | 310 | 195 | 185 | 200 | 20 | 160 | 8-18 | 400 | 31 | 45 | |
| DN100 | 350 | 216 | 205 | 220 | 20 | 180 | 8-18 | 300 | 39 | 45 | |
| DN125 | 400 | 237 | 230 | 250 | 22 | 210 | 8-18 | 200 | 66 | 45 | |
| DN150 | 480 | 282 | 280 | 285 | 22 | 240 | 8-22 | 100 | 87 | 45 | |
| DN200 | 533 | 289 | 340 | 340 | 30 | 295 | 12-22 | 100 | 90 | 45 |
