Electric automatic valves Questions
- What is the difference between an electromagnetic valve and an electric automatic valve? Also, do you handle electromagnetic valves?
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A electromagnetic valve operates a valve with the electromagnetic force of a solenoid. On the other hand, an electric automatic valve operates the valve with a motor and gears.
Electric automatic valves generally have a longer actuation time than electromagnetic valves due to use of a motor, so they have the advantage of being less prone to water hammer.We only handle electric automatic valves that use motors, and do not handle electromagnetic valves.
- If a power failure occurs while an electric automatic valve is operating, what happens to the operation of the valve?
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Basically, an electric automatic valve stops at the valve opening at the time of power failure. However, only in the case of a spring-return type electric automatic valve, the valve is closed at the time of power failure. Please contact us if you want to use a spring-return type electric automatic valve to be open at the time of power failure.
- What is the service life of an electric automatic valve?
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The durability of an electric automatic valve varies depending on the use condition.
In our in-house tests, actuators have been tested 100,000 times, and valves have been tested 10,000 times. However, be sure to perform regular inspections during use to prevent unexpected accidents.
- Which products are the successors to the discontinued EK series / EL series electric motors?
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The successors to the EK Series / EL Series are the EX series. Since the product specifications differ between the EK series / EL series and the successors, wiring change / additional works may be required to replace and use them.
For details, please refer to “About precautions regarding replacement of EK / EL series → EX series products” in the EX series instruction manual.
(KJ-4016: Aluminum alloy electric actuator EX series)
* Go to download catalogs and instruction manuals
- Why a space heater is required?
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By using a space heater for the actuator, it is possible to lower the internal relative humidity* and prevent internal condensation.
Please note that the EX series must be kept energized at all times.
* Relative humidity (%): A measure of how much water is contained compared to the amount of saturated water vapor (the maximum amount of water that can be contained in air at a certain temperature)