Bulk Material Valves

Stock Bulk Material Valves (BMV) control material flow from bins, hoppers, chutes, silos, and long downspouts. The self-cleaning rack and pinion design makes this valve extremely suitable for bulk material applications where positive shut-off is required through a standing column of material. The pinions drive through the gate ladder rack, providing self-cleaning operation. Any material accumulating on top of the gate rack will be crushed and passed through, eliminating the possibility of gate binding.

Stock BMV’s are built to endure material handling applications that involve harsh environments, wide temperature ranges, pressure differentials, and unusual flow characteristics. All Stock Bulk Material Valves are dust-tight. The overlap closure of the gate and self-cleaning racks makes these valves well suited for handling fine and dusty materials. The Stock design allows for routine maintenance and inspection, and permits the removal of the gate assembly while the valve remains in place. The gate operating shaft is located above the gate rack, keeping bearings, rollers, and the pinion shaft out of active material stream.

Stock BMV’s have a wide range of applications. For bunker/silo applications, a number of valve sizes with round inlets and rectangular inlets are available. For feeder inlet shut-off, the same basic design is applied to the robust construction necessary to meet NFPA explosion requirements. Stock Equipment has the ability to create custom bulk material valves perfectly suited to your application.