“non-return valve”的概念、定义、翻译、参考文献-科学参考

non-return valve

Chemical Engineering

A type of valve used in a pipeline to ensure that the flow of a fluid is in one direction only and therefore prevent the inadvertent change of direction of flow. Also known as a check valve or one-way valve, there are various types and designs used for a wide variety of applications. They all consist of a mechanical mechanism that prevents the (p. 257) reversing of flow such as using a spring-loaded ball that seats and blocks flow in the event of a reversal of pressure. Flexible diaphragms are also used which flex and open in one flow direction but seal in the other. Others consist of a hinged disc that opens freely with flow but seals shut when the flow is reversed.

单词	non-return valve
释义	non-return valve Chemical Engineering A type of valve used in a pipeline to ensure that the flow of a fluid is in one direction only and therefore prevent the inadvertent change of direction of flow. Also known as a check valve or one-way valve, there are various types and designs used for a wide variety of applications. They all consist of a mechanical mechanism that prevents the (p. 257) reversing of flow such as using a spring-loaded ball that seats and blocks flow in the event of a reversal of pressure. Flexible diaphragms are also used which flex and open in one flow direction but seal in the other. Others consist of a hinged disc that opens freely with flow but seals shut when the flow is reversed.
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