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A shut-off valve is installed on the inlet pipeline of the methanol storage tank. Can it be installed on the pump’s inlet pipeline as well? Since this is a renovation project, there was already a remote shut-off valve before the pump; generally, shut-off valves for the storage tank’s inlet pipeline are installed at the root of the pipeline. Is it feasible to install one before the pump?
Install valves and shut down the pumps in the chain; otherwise, the pumps will overrotate and get damaged
First, you need to understand what the purpose of this shut-off valve is. Such valves are generally used in fire scenarios to stop the flow of materials; when the valve is closed, it triggers an interlock that shuts down the pump. Additionally, these valves usually operate in an air-operated manner and are designed to close in case of an emergency, so they must be located at the base of the tank or tower
Cut-off valves should be installed at the base of the storage tank, usually two. Methanol is a Class A fire hazard with high toxicity; to prevent accidents involving massive leakage of the substance from the tank, it is safest to install dual valves at the base of the tank.
For safety reasons, emergency shut-off valves must be installed at both the inlet and outlet of the storage tank; these valves shut off immediately in case of a fire, preventing fire from entering the tank
No, it must be installed at the base of the storage tank. This shut-off valve is intended for use in emergency situations; installing it in front of the pump only creates additional safety risks.