·Applicable Field：Grain, Wheat Flour Milling, Feed Industries ·Applicable Material：Powder, wheat flour, rice ·Function：Installed at the discharge port of flow scale, reducing impact of air return in pipeline in order to make sure the measurement accuracy of flow scale ·Performance characteristics：Made of metal sheet, light, suitable for overhead installation, VD-ring sealing, integrated design of frequency conversion, compact structure ·Patent No.: 201621435768.2Rotary Feeder valves are Widely used in wheat flour milling plant, rice milling production line, used under flow scale devices to reduce the impact of air to the flow scale to make sue the measurement accuracy of flow scale.Q1. Are you a manufacturer or a trading company, do you accept OEM ? A1. We are manufacturer and we have been in the rotary airlock valve and diverter valve filed for almost 20 years. We have our own engineer team and up to now we have got several patent of our own. We can customize according to users usage. Q2. What are your advantages ? A2.Our Airlocks can operate smoothly for 6-8 years with SKF Bearings, ISO 600-3 nodular cast iron material, and professional design with our own patents. Since we are manufacturer, we have our own supply chain and quality control system. So we can provide competitive price as well as good quality. Q3. What kind of payment terms and transportation do you accept ? A3. We accept payment through Alibaba, TT, LC etc. Air transportation and sea transportation are available.