The
electromagnetic valve comprises a coil body and a
valve seat, the coil body is provided with a through cavity with a downward opening, the
valve seat is provided with an inner cavity with an upward opening, the inner cavity is communicated with an inlet and an outlet in the two ends of the
valve seat, the lower portion of the coil body is in
butt joint with a middle connecting piece, the lower portion of the middle connecting piece is inserted into the inner cavity of the valve seat, and the coil body, the middle connecting piece and the valve seat are fixed through screws. A spring and an iron core are sequentially placed in the through cavity downwards, the spring is sleeved on the upper portion of the iron core, a sealing ring is installed in an inner cavity of the valve seat, the sealing ring is sleeved outside a valve core, a
pilot hole extending up and down is arranged in the center of the valve core, a plug is fixedly connected to the lower end of the iron core, and the plug is clamped at the upper end of the valve core and used for opening or blocking the
pilot hole. When the
electromagnetic valve is opened, the
electromagnetic valve has the advantages of high speed and short
response time of a direct-acting electromagnetic valve; on the basis of a
pilot-operated type electromagnetic valve structure, large flux of flowing water can be realized; the closing effect is as excellent as that of a pilot mode, and in the closing state, the
pressure difference under the control of the
pilot hole is actually utilized, so that the pressure
bearing capacity is high.