Three-position solenoid valves
Three-position solenoid Valves and digital valve three-position solenoid
valve spool has three working positions, they were not in power, in the
low lift state, the valve provides an initial flow; to give an
electrical signal, solenoid valve fully open, providing large flow; to
give another kinds of electrical signals, the valve closed.
The Valve also has a manual device, making long-off valves without
need power. Three-position solenoid valve can be considered as a
structure more compact double-solenoid valve, it is very easy to achieve
the three-position regulation, has received a lot of applications. ZDF
Multi-funtional solenoid valve further idea is that a certain proportion
of n-size solenoid valve into the composition of 2n kinds of flows,
similar to the digital circuit, it is said this combined valve as the
digital valve. In fact two different sizes of double-valve or
three-position valves can produce 24=16 or 32 = 9 kinds of flows, has
been able to reach very high accuracy. In principle, it is said that it
has the advantage of supporting industrial control computer, but because
applications have not yet made a lot of demand, the technology is still
in the testing stage.
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