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in Fermentation Technology by (72.1k points)
Which of the following valve consists of a disc which rotates about a shaft in a housing?

(a) Butterfly valves

(b) Piston valve

(c) Ball valves

(d) Pinch valves

The question was posed to me in exam.

Origin of the question is Instrumentation and Control topic in division Instrumentation and Control of Fermentation Technology

1 Answer

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Best answer
Correct answer is (a) Butterfly valves

The explanation is: Butterfly valve consists of a disc which rotates about a shaft in a housing. It is usually used in large diameter pipes operating under low pressure. It is not suitable for aseptic operation.

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