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Which among the following is shut-off and change over valve?(a) Seat valve(b) Butterfly valve(c) Seat valve and butterfly valve(d) BendI have been asked this question by my school teacher while I was bunking the class.This interesting question is from Pipes, Valves and Fittings topic in chapter Building Blocks of Dairy Processing of Dairy Engineering

Answer»

The correct option is (c) Seat valve and butterfly valve

For explanation: There are many places in a piping SYSTEM where it must be possible to stop the flow or divert it to another line. These FUNCTIONS are PERFORMED by valves. Seat valves, manually or pneumatically controlled, or butterfly valves, are USED for this purpose.



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