DCF-4 electromagnetic pulse valve is a pulse valve used in the national standard T540 and MC-II pulse bag filter. Its characteristics include the use of a flat diaphragm and a service life of over 300000 times. Reasonable structure, low resistance, working pressure of 0.3-0.7MPa, QMF-100 pulse valve with an effect of 5-7kgf/cm2. When the spraying time is 0.2 seconds and the spraying pressure is 4kgf/cm2, it can replace the QMF-100 pulse valve with a single spraying volume of 22 liters.