induce steam
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When introducing steam, the medium-pressure steam is poured downstream of the regulating valve, while the low-pressure steam is poured upstream of the regulating valve. Why?
The downstream pressure of the regulating valve is lower than the upstream pressure, which is safer when venting and draining.
There is not much difference between the upstream and downstream of the control valve. It is generally located upstream because the backwash valve needs to be opened when driving and inspecting the control valve.
It is a process installation error. According to the standard, it is installed upstream.
In addition, if there are special circumstances, it can also be installed upstream and downstream separately.
Mainly for maintenance needs, it is better to follow the specifications
The pouring valve should be installed upstream, which can preheat and discharge impurities and protect the regulating valve.
Except for hydrofluoric acid or hydrofluoric acid-containing media, everything else must be installed upstream.
k The medium-pressure one is upstream because the pressure is relatively high. When venting, you can use a control valve to control the pressure and flow to prevent sudden eruption and burns. The low-pressure one does not have such a high pressure upstream, which is conducive to discharging the medium. Everything is based on safety.