The Silo Stopper

Silo Overfill Protection System for pinch valves, pressure switches, control panels & automation to prevent blower trucks from overfilling silos.

The Silo Stopper prevents blower trucks and other filling sources from overfilling silo systems. Commonly used in the cement and bulk powder industries where pressure pneumatic trucks and blowers are used to re-fill silos. On occasion, these transport companies overfill silos, leading to a number of headaches. The Silo Stopper is a system that monitors the condition of the silo while filling. It uses sensors to measure internal silo pressure and product fill height. When pressure or fill height levels are high, alarms sound to inform the operator to cease filling. If levels or pressures reach critical levels, the system automatically activates a safety cutoff valve on the fill line (usually a pinch valve or butterfly valve), protecting the silos.