What is a valve

What is a valve? A valve is a control component in a fluid delivery system. It has the functions of diversion, interception, regulation, throttling, prevention of backflow, diversion or overflow and pressure relief. As an important control component of pipelines, valves are widely used in various sectors of the national economy such as petroleum, chemical industry, metallurgy, natural gas transportation, power stations, urban water supply, etc. What is a valve Functions such as regulation, throttling, preventing backflow, diversion or overflow and pressure relief. As an important control element of pipelines, valves are widely used in various sectors of the national economy such as petroleum, chemical industry, metallurgy, natural gas transportation, power stations, urban water supply