What's the difference between a valve and a valve?
The correct unit should be called "group". A set of threaded valves include valves, live connections, and short tubes. A set of flanged valves consist of a pair of flanges (including bolts, gaskets, rubber pads), and short tubes".
In fact, the difference is that a set of valves, including two flanges, bolts, flange pad belongs to a set. A valve just doesn't carry those things.
The valve does not have an Ethernet platform, and the "one" valve does not contain any other fittings.
