For facilities that handle relatively large, abrasive materials like sand, coffee, foundry dust, limestone dust and other minerals, a double-dump valve provides long-term functionality with minimal wear and air seepage. While a rotary valve is an excellent choice for processing low-abrasive, free-flowing particles, its blades and housing may experience excessive wear after short-term use in a rough material application. In contrast, a double-dump valve doesn’t have rotating components that are prone to damage. The tandem gates of the double-dump valve offer an easy, reliable way to dispense hard, rough materials without compromising the positive or negative pressure in the system. Bottom line: choosing the wrong dry solids material handling valve can end up costing you a fortune in expensive maintenance, lost time for personnel and system downtime. If your material is large and abrasive, save time and money by selecting a double-dump valve that’s specially designed to avoid wear.