[Features]
·By installing in the middle of the piping on the secondary side, it is possible to hold the cylinder intermediate position for a long time.
·3 position · By combining with the exhaust center solenoid valve, the cylinder can be stopped intermediately and the position can be maintained for a long time.
In addition, by combining with a 2-position single / double solenoid valve, it can be used as a fall prevention at the cylinder stroke end when the residual pressure of SUP is released.