What is a miniature ball valve?
Miniature electric ball valve is a kind of subminiature electric valve. The integrated design of the actuator and the valve body greatly reduces the external volume, which is used in various technological occasions with great restrictions on the installation size and volume.
The ball of micro ball valve is divided into L-shape and T-shape. Pneumatic actuators drives the ball to achieve the control purpose of commutation through 90-degree rotation, or to achieve the control purpose of commutation and shunting through 180-degree rotation. The direct connection between the actuator and the valve body reduces the possibility of failure. Flanged pipeline can maintain good sealing performance, which is convenient for maintenance and replacement and convenient for pipeline sealing.
Product features:
1. Ultra-small volume, height less than 120mm, weight 0.8KG
2. All-steel metal gear transmission (running life is much longer than plastic gear), worm gear output, simple and reliable transmission structure.
3. Self-locking (self-maintaining valve position) function.
4. This product supports multiple power supplies (AC85V-260V) to drive access.
5. Simple structure and reliable performance. Widely replace all kinds of small-caliber solenoid valve products.
6. The pressure difference is large, it is not easy to block, and it has the function of purging the pipeline (self-cleaning function of the valve core).
7. Protection grade: IP65
8. With fully open/fully closed output signal (NPN transistor? Collector current)
application area
Air conditioning system, fire fighting system, water treatment system, pipeline purging, analytical instruments, flue gas sampling, etc.
What are the wiring control methods of micro ball valves?
1, control wiring mode -2 line
Description: SW is a double switch, which is connected with OPEN. The electric actuator moves forward and the valve opens. After it is in place, the internal power supply is automatically cut off and the valve is kept open. SW is connected with CLOSE, the electric actuator is negative, and the valve is closed. When in place, the internal power supply is automatically cut off to keep the valve closed. The action of the actuator is rotary (positive and negative rotation).
2. Control wiring mode -3 wire
Note: when SW is connected to OPEN, the valve will open, and it will automatically short-circuit internally after it is in place, keeping the valve open; When SW is connected with CLOSE, the valve will be closed, and the internal power supply will be automatically cut off after it is in place, keeping the valve closed. The action of the actuator is rotary (positive and negative rotation).
3. Control wiring mode -5 wire (external power failure)
Description: SW is a double switch. When SW is connected to OPEN, the valve will open. When it is in position, the green line will send a position signal to OLS. After the controller detects OLS, the switch will be connected to stop, and the valve will stop and remain in the open state. When SW is connected with CLOSE, the valve will close and the red line will give CLS signal. When CLS is detected, the controller connects SW to STOP, and the valve will stop and remain closed. The action of that actuator is rotary (forward and reverse rotation).
4. Wide voltage connection mode-AC /DC9-24V
Note: When SW is connected to OPEN, the actuator moves, and the valve is opened. After it is in place, the internal power supply is automatically cut off and the valve is kept open. When SW is connected with CLOSE, the actuator is negative and the valve is closed. After reaching the position, the internal power is automatically cut off to keep the valve closed. The actuator is a rotary type (forward and reverse rotation).
5. Description of quick opening and closing wiring
Description: 1. When SW is closed, the actuator acts and the valve opens. After reaching the position, the internal power is automatically cut off and the valve remains open. When SW is closed, the actuator acts negatively and the valve is closed. When in place, the internal power supply is automatically turned off to keep the valve closed. 2. The power supply is the external working power supply of the actuator, and the voltage range is DC9~24V. Farah capacitor is used as backup power supply internally, which is safe and reliable, and has fast charging time, and can work in occasions with high switching frequency.
Conclusion: Through the above introduction, I believe everyone has a certain understanding of the product characteristics and wiring control mode of micro ball valves. Micro ball valve is a very high-quality valve, which can not only realize the function of traditional control pipeline, but also reduce the waste of space to a great extent. Bian Xiao here recommends that you choose some big brands of micro ball valves, because the quality of micro ball valves of big brands is relatively reliable. I hope that through the above introduction, you can understand the product characteristics and wiring control mode of micro ball valve.
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