1-1/2" BANTAM ABRASIVE METERING VALVE|An abrasive metering valve regulates the flow of abrasive from an abrasive blasting pot. Metering valves create optimum abrasive blasting efficiency by controlling the desired amount of abrasive entering the air stream. A lean air and abrasive mixture provides faster cutting, reduced abrasive consumption, increased productivity, and lower clean-up costs. Marco's Blastmaster® Bantam Abrasive Metering Valve adjusts the flow of abrasive with a simple turn of the control knob. The screw-type design of the flow adjustment provides precise metering of the abrasive flow. The simple design, with very few components, is easy to service and repair. Typical applications include blast rooms, blast yards, bridges, oil refineries, pipelines, and storage tanks. Common abrasives used include aluminum oxide, crushed glass, garnet, glass bead, mineral abrasives, slags, staurolite and steel grit/shot.