| 摘要 |
The coil of a solenoid-operated valve is fluid-isolated from fluid whose flow is controlled by the valve by providing the solenoid with an imperforate transverse end wall having a radially inner annular ferromagnetic zone forming one portion of the stator, a radially outer annular ferromagnetic zone forming another portion of the stator, and a radially intermediate annular zone of non-magnetic material separating the radially inner and radially outer ferromagnetic zones.
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