Heavy -calibre guide formula piston type solenoid valve

The utility model provides a heavy -calibre guide formula piston type solenoid valve, including valve body, valve gap, hand switch device and switch speed adjusting device, the valve body carries out sealing connection with bolt for the valve gap. The valve body intracavity is equipped with guide pin bushing under the piston, and the valve gap intracavity is equipped with guide pin bushing on the piston, and piston assembly places in on the piston under guide pin bushing and the piston in the guide pin bushing and with the jump ring location, guarantees that the piston assembly up -and -down motion is nimble. Switch speed adjusting device put with valve gap one side, it comprises cutting ferrule, aciculiform screw rod, O type circle, fixation nut, the adjustable air input size of intaking of up time needle anticlockwise rotation alternaties the switching speed of solenoid valve. Valve cover inner cavity has pilot valve mouth, magnetism isolating pipe subassembly, adjustable balance formula movable iron core s