TIME:2013-07-06 Source: This site
check valve , PTFE lined valve , Fluorine lined DC globe valve These three products all have the word 'fluorine lined' in front of them, indicating that they have certain similarities, but the different suffixes also indicate that their functions are actually quite different. Now let's talk about when fluorine lined DC globe valves are used or in which situations they are more suitable.
Fluorine lined DC globe valve refers to a valve whose closing element (valve disc) moves along the centerline of the valve seat. According to the movement of the valve disc, the change in the valve seat opening is directly proportional to the stroke of the valve disc. Due to the relatively short opening or closing stroke of the valve stem and reliable shut-off function, as well as the proportional relationship between the change of the valve seat opening and the stroke of the valve disc, this type of valve is suitable for regulating flow. Therefore, PTFE lined valves are suitable for use as cut-off, regulating, and throttling valves. The selection principle is that globe valves should be used on pipelines or devices for high-temperature and high-pressure media. High temperature and high-pressure pipelines in thermal power plants, nuclear power plants, and petrochemical systems. On pipelines with lax flow resistance requirements. Places where pressure loss is not given much consideration.
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