意大利ODE直動(dòng)式電磁閥,電磁閥結(jié)構(gòu)分類
For the correct operation of the solenoid valve, and in order to avoid the rapid wear of the diaphragm,
Is desirable, once the valve is closed,
the actual flow is not higher than Kv (ie, the flow through the valve, the pressure loss is 1 bar).
Therefore, if the inlet pressure at the time of opening the valve is higher than 1 bar,
it is not recommended to use a valve with a free outlet itself,
That is, no export restrictions
The pressure drops to a value of 1 bar. In addition,
the design of the hydraulic circuit must pay special attention to the problem Water hammer may lead to overvoltage,
The pressure difference between the inlet and outlet pipes ensures proper operation of the solenoid valve.
However, the pressure difference between the inlet and the outlet is too large,
Such as tearing the diaphragm or damaging the other parts of the solenoid valve.
The function is basically similar to a solenoid valve with pilot control
As for the diaphragm movement in addition to use
The difference between the inlet and the outlet is small
The diaphragm is secured by the direct action of the plunger.
Thus, in this case, the fluid is under pressure at the top of the chamber when the coil is not energized
The pressure below the diaphragm is only in the area outside the main hole:
So the result of the force on the diaphragm is to push it to close the main orifice.
under normal circumstances for the two-way closure of the direct role of the solenoid valve,
Causing the force required to open the pilot to increase the hole,
so if the pressure difference is greater than the maximum value of the solenoid valve has been designed,
Even when the coil is energized, the latter can not be turned on.

意大利ODE直動(dòng)式電磁閥,電磁閥結(jié)構(gòu)分類

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