M series mechanical valve, port size ranges from 1/8” to 1/4". We have different working styles, including 5/2 way and 3/2 way, with various control head design for different applications. Spool of the solenoid valve is cutted and one-time-machined from superior aluminum alloy rod , by high precision Japan CNC machine; Valve body use strong aluminum alloy ,ensuring clean and rigid thread. Different thread sizes are available for different standard, PT, G, NPT, etc.