เช็ควาล์ว

A one-way valve allows forward flow and closes against reverse flow. In industrial pipework, it is usually called a เช็ควาล์ว or non-return valve. The names describe the same basic function; the internal design determines how the valve opens, closes and fits into the line.

On a pump discharge, a water supply line or a process pipeline, the practical question is which design suits the flow and installation. This guide explains the common structures, the difference between valve shape and connection type, and the details worth checking before you choose a model.

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