In the valve data sheet, what do \"lockup valve\" and \"transfer valve\" mean?
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Recently, while looking at the valve data sheets from Japan, I saw two types of valves: lockup valves and transfer valves. What do these terms mean? What is its purpose?
A lockup valve is a valve that comes with a lock; a transfer valve does not refer to a specific type of valve, but simply denotes a valve used for transfer.
The lockup valve should be a position-retaining valve, while the transfer valve is used for transmitting valve positions. These should all be accessories for valves.
The lockup valve should be a retention valve; this can be confirmed