Hydraulic Solenoid Valve
Poppet valve, spool valve, blocking/low flow valve, etc. are all parts of the solenoid valve series. For low leakage blocking and load holding applications, the Popet valve is a two-way, typically open or normally closed valve. Spool valves come in two-way, three-way, four-way, three position, normally open, and normally closed varieties. Blocking/low flow valves have two positions and are three-way blocking valves as well as two-way, generally closed, load retaining relief valves. The double coil that powers the spool valve is linked in neutral.
