Industry Automation
division | Valcon products | Third party products | Selenoid valve |
---|---|---|---|
Entity drawing | |||
Fluid flow diagram | |||
Response speed | About 3 to 4 seconds | About 7.5 seconds | Immediately |
Water-hammer | No phenomenon | No phenomenon | More likely to occur |
Verify operation | Easy to see the object state visually from the front face of the electric actuator and 20m away from the side | The position of the lever on the side of the actuator can be checked on the front with lever, but not on the opposite side | Can not confirm. There may be inconveniences to disassemble and confirm |
Operation method | A method of rotating the gear by driving the DC motor in the forward and reverse directions (Output torque is high by using DC motor) | AC motor is driven to convert the rotational motion of the gear and crankshaft into vertical motion, which is closed during lower motion and opened during phase motion | Using electromagnet principle. Power is supplied to the coil and the conductor is pulled up to open |
Power supply | DC12V (No Electric shock accident) | AC220V (Concerned Electric shock accident) | AC220V Possible electric shock when using |
Power Consumption | Open:0W, Close:0W, Running:0.6W | Open:3.9W, Close:0W, Running:4W | AC 30W, DC 30W |
blackout Measures | Open and close the valve by pressing the manual button and turning the handle | Manual opening and closing impossibility. So separate manual valve installation | Unconditionally closed during power outage. Can not open manually even in cold weather |
flaw | There is no problem in normal operation, but the gear damage caused by forced restraint may cause noise | Leakage due to abrasion of rubber ring can occur. Leakage can occur due to defective opening or closing of valve due to contamination such as foreign matter. Output (torque) is weaker than DC motor | The force of the spring is weaked, it is impossible to open and close at high pressure, and leakage easily occurs. Structurally vulnerable to foreign matter |
pressure | Available up to 10kgf/㎠ | Available up to 3.5kgf/㎠ | Be vulnerable to water pressure |