5/2, 5/3-way pneumatic operated valves G3/8" involves monostable model (MSV310) and bistable model (MSV320, MSV330). Ports G3/8" pneumatic operated valves are with outer pneumatic control working pattern, 30cm2 and 18cm2 valid cross sections, needless lubrication, P.A.B 3/8" and R.S 1/4" port size, etc.