In the picture, what does it mean that PPV12251 is not only interlocked with PIC12255, but also interlocked with TPV12251?
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In the picture, what does it mean that PPV12251 is not only interlocked with PIC12255, but also interlocked with TPV12251? Hope for advice
The medium in the pipe should be gas. Temperature and pressure jointly control the flow rate of the regulating valve. The interlocking temperature is a correction to the pressure control flow rate.
No flow control is pressure control and temperature control
Look, this is the control circuit of the temperature and pressure reducer. This is a separate temperature and pressure control.
They are not separate. There is an interlocking relationship between temperature and pressure on site. I just want to ask what is the relationship between this matter?
It doesn't matter, it's just that the overall temperature and pressure reduction system usually looks like this.
Is it temperature and pressure cascade control?
High temperature indicates that the amount of desuperheating water is less, and the interlocking valve is closed.
There is no interlocking, only adjustment. . It's temperature control and pressure control. The temperature H is for alarm.
The regulating valve and pressure are interlocked, and the temperature is high-explosive interlocked. Temperature has no effect under normal working conditions.