Issues with the installation of the root valve on the equipment?
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Is it necessary to install a root valve at each pipe outlet of the equipment? In what situations can it be omitted? Otherwise, there would be too many valves, and the root valves are normally unreachable.
They are basically all required, unless in special cases. As far as I know, except for the outlet of the vapor line at the top of the tower where no valve is installed, valves are generally needed everywhere else. As for whether to install valves or not, it should not be decided from the perspective of cost savings, but rather from the standpoint of equipment safety and operational safety. If only cost savings are considered, it’s impossible to know what problems might arise later; one must not be careless
Some of the pipe-end valves are installed in an always-open position, and they can’t even be operated – what’s the use of that?
Consider operations such as equipment maintenance, purging, and isolation, on the premise of ensuring safety
A root valve needs to be installed at each outlet of the equipment
Equipment generally requires inlet and outlet valves, but these valves do not necessarily have to be installed at the root (on the equipment’s flange).
Let’s categorize it by process; for example, discharging from the bottom of the tank is definitely necessary
The spare port is not needed; it can be sealed directly with a flange cover.
Some valves that are installed there may be used very rarely or remain open at all times, but in the event of a problem, they can be shut off promptly to ensure safety. There is always a benefit to this; otherwise, there will be consequences for you, it’s just a matter of time. After all, processes, equipment, and pipelines can all develop problems at some point. Including the spare port, having valves makes things much easier during maintenance and technical upgrades; otherwise, draining and purging would be very troublesome. If it’s not for saving money, it’s still necessary to install it for convenience and safety.
I feel that it’s generally not necessary to provide an outlet at the discharge end of a falling film evaporator