Why bypass line is given in the Control valve pipeline | Control Valve Malfunction.

In this video we are going to discuss about the ;

Why bypass line is given in the Control valve pipe line
Control Valve Malfunction
Bypass line in pipeline
Why globe valve is used in the pipeline?
where globe valve is used in the pipeline?
Gate valve
Globe valve
Control valve

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[nadeemmallick]

If control valve is 100% closed so will water pressure drop or not?

[Kobe]

When the bypass is open does it not defeat the purpose of the Pressure reducing valve by feeding 45 psi directly into whatever is downstream?

[leonguyen]

I have a question
After maintenance, how to open 2 bottom valves safety to back fluid to the normal line? I mean, 2 valves, which valve we open first?
Many thanks!

[mkbhuin]

Does pressure control valve needs any bypass line.

[khunteatishanil]

can u please tell why globe valve is installed near TEE not in centre and wat is cailed FC & FO in control valve

[Nk-nwqj]

Is the bypass line a smaller size than the main line

[GaddarKerim]

This is out of date. We shouldn't rely on manual control. Additionally, bypass valves may fail and the control valve requires double block&bleed valves to isolate safely.

[muhammadtalha]

Because the steam has lighters density as compared to water and steam is used both by pass line as well as normal line and steam used both line for the flow