Double ram feed valve adopts structural ceramics as seal (disc and seat are abrasion resistant structural ceramics), scour resistance and wearability. Hold open double ram sealing structure, gate spin in the process of opening and closing, opening and closing flexible, and a self-cleaning polishing function, imported seal when the valve is closed. According to the special requirements of feed, set the dump slope structure, suitable for dry ash and pulverized coal, slag slurry, granular materials, such as medium of conveying, commonly used in storehouse pump feed, no dust, no jamming and simple maintenance, long service life.