What is the difference between a branch line, a side line, and an intersecting line?

This post was last edited by ylb913 on 2018-9-5 06:29. Cross-wiring refers to wiring that spans different devices, units, or apparatuses (including cross-wiring at entrances and exits)； A secondary line is generally a line that crosses pipe fittings; equipment-related cross-lines are also referred to as secondary lines, although \"cross-line\" is not the most accurate term for them ； Bypass is usually used for regulation. Having a bypass line usually does not affect the flow capacity, such as the bypass line of a control valve or that of a meter ； Cross-connections and bypasses are not always necessary; for example, a cross-connection on a check valve is intended to prevent backflow, which is used in situations such as preventing freezing or during line cleaning when starting up or shutting down operations. Such connections do not necessarily require high flow capacity. There are also cross-connections at the pump’s inlet and outlet.

It’s the same thing; it’s just called by a different name. The function is the same: it refers to pipelines that are not used in the normal main process, and are employed only during maintenance or in case of abnormalities.

It’s different; for a secondary line, it can serve as a backup to the main line. Such as instrument control valves. A cross-line refers to a connecting pipeline that allows materials to pass through closed valves, serving as a means to quickly open valves in special situations

The secondary line and the bypass line should be the same

Not bad, not bad – the explanation is very detailed

Generally, their functions are similar; for valve assemblies used in secondary lines, globe valves are commonly used, while gate valves are more often used for cross-line connections. The bypass line has a regulating function, and a control valve assembly can be installed.

It can be said that their functions are basically the same, but the locations where they are found differ!