Pneumatic Master Valve AR/RB-CN series / 5 Port, 3 Position ( Close Center ), 2 Pilot, Size M5 ~ 1"

Type : 5 Port, 3 Position, 2 Pilot
Pressure : 1.5 ~ 7 Kg/Cm2
Temperature : 0 ~ 50 C
Size : M5 ~ 1"

Taiyo AR-CN & RB-CN series are 5 port, 3 position ( close center ), double pilot Pneumatic Master Valve.
http://www.taiyo-ltd.co.jp/eg/products/products0/0_a1.html