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what is a foot valve used in petrochemical companies?

Posted On 26 Aug 2010 By kk. Under: Petrochemical. Tags: companies, foot, Petrochemical, used, valve

what is a foot valve? how does it look? what is the application
in petrochemical companies?

lithiumdeuteride says:

August 26, 2010 at 9:48 pm

A foot valve is placed at the bottom of a suction pipe, which could be used to drain a large container of liquid. The foot valve is a one-way valve (check valve) that prevents the liquid from draining back into the container.
Espresso 305 says:

August 26, 2010 at 10:17 pm

A foot valve is simply a check valve. It is common use in a piping system at the pump suction side. By placing it this way when the pump stops operating, fluid won’t flow back into the lower reservoir and the suction side of the pump is always full of liquid.