The cause of sudden excessive silo pressure or excessive pump pressure must be addressed immediately. Efficient and reliable equipment pressure Check Valve are a must for silo systems. When the pressure value is within the preset range, the coil spring keeps the cover closed.
The three outer Check Valve springs keep the outer ring bonnet closed until the silo pressure is less than the spring force. When the cabin pressure is too high or too low, if the pressure exceeds the preset value range, it will bring pressure to the valve cover release. The small bonnet covers the central round hole under the outer valve cover. A small valve cover with a single spring rod is fixed to the standard atmospheric pressure chamber cover. The pumping pressure spring compresses and lowers the valve cover. Air enters the silo from the outside, and this ensures rapid pressure equalization and the center valve cover to the closed position. The entire process requires no manual operation. Widely used in storage tanks, hoppers, and usually on top of dust collectors.
When the pressure range of the Check Valve device acting on the internal force on the media disc is smaller than that in the valve force loading mechanism, the difference causes the seal between the valve disc and the valve seat, the valve seat is broken, and the media device cannot be discharged. When the pressure inside the equipment exceeds the working pressure Check Valve opening pressure, the internal media force is greater than the load flap above the mechanism on it, so the valve flap leaves the valve seat, and the Check Valve opens and the medium in the equipment is discharged through the seat.
