Choose normally closed, on/off or continuously connected power supply according to continuous working time.

1, solenoid valve with magnet coil after the power supply of electromagnetic field to complete the position, so the solenoid valve only open, close two parts, that is, normally closed (not connected to the power supply closed), open and close (not connected to the power supply open).

2 if the provision of solenoid valve constantly open and close the application of the circulation system, if the opening time does not need to close, should be used: open and close type. If the two similar time, should choose high quality solenoid valve normally closed type. However, some work situations used for safety maintenance, such as natural material handling of stoves and kilns and flame testing, cannot be selected and closed, because in the event of common faults, solenoid valves must be closed in an emergency, control instruments or switching power supply will also have problems, which will lead to disaster. The new solenoid valve selects new technology integration technology, which can not only be connected to the power supply for a long time, but also the heating of the electromagnetic coil is very low.

Solenoid valve company according to the provisions of the natural environment to choose the auxiliary role of steam solenoid valve: explosion-proof, moisture-proof fog, shower, deep diving, low temperature.

1, combustible natural environment: must use the relative protection level of solenoid valve.

2, outdoor Settings and smoky places should use moisture-proof, anti-fouling types.

3. Music fountain must choose deep submersible solenoid valve.

4. Low temperature material or low temperature natural environment must use ultra-low temperature solenoid valve.

It must be noted that reasonableness takes into account not only the market price of the commodity, but also its function, quality, cost of installation inspection and accessories. In addition, a solenoid valve in all automatic control system software, in all automatic control system software even in the production line, the cost is minimal. If it is just cheap and the choice is wrong, the harm to the group will be great.

In short, rationality is not only the estimation of the product, but also the comparison of the comprehensive cost of the commodity characteristic price.