Macawber Engineering, Inc Advanced Pneumatic Conveying Systems Controlled Injection Systems Inflatable Seat Valve Process Engineering ISO 9001 Registered ASME Certified Long Distance Conveying Reduced Wear Minimized Maintenance Decreased Downtime Seamless Integration Fully Customizable Fully Enclosed Convey Process The Variflo® is designed to operate over distances up to 3000 ft. It can convey most fluidizable powders and granular materials which are non-sensitive and generally non-abrasive. Variflo operates on the boundary of dilute and dense phase, a zone that can be unstable. As a result, to ensure stable conditions. material loading in the pipeline is closely controlled through our proprietary Dome Valve® fitted to the outlet of the vessel and acting as a modulating valve. This modulating valve opens and closes in response to pressure signals indicating the loading level in the pipeline. If the pressure is too high, the valve will close, reducing the loading and preventing pipe blockages. If the pressure is too low, the valve will open, increasing the loading. This optimizes the velocity of the system, reducing pipe wear and maximizing capacity. This method of line loading is essential for automatic self-regulating conveying efficiency when conveying distances are long. Due to the robust design of the Dome Valve®, system life is also high and maintenance low. • • • • • • • • • • Temperature rating up to < 1000°F (537°C) Standard pressure rating up to 100psig (7barg). Higher pressure ratings available Standard material 516 Gd70 carbon steel Available in 304/316 stainless steel, aluminum, galvanized, and others Food grade, FDA, and pharmaceutical finishes and coatings Industrial coatings such as Teflon®, tungsten carbide, nickel, and others Fully assembled and tested prior to shipment Manufactured in Maryville, TN USA Global customer support for service and spare parts ISO 9001:2015 Certified UK – Macawber UK Ltd. India – Macawber Engineering Systems India, Ltd. Pvt. www.macawber.com [email protected] 1829 Clydesdale Street, Maryville, TN 37801 USA Equipment Specification | VARI

ISO 9001 Registered | ASME Certified Advanced Pneumatic Conveying Systems Controlled Injection Systems Inflatable Seat Valve Process Engineering India - Macawber Engineering Systems India, Ltd. Pvt. 1829 Clydesdale Street, Maryville, TN 37801 USA