·Applicable Field： food, feed, chemical, storage and transportation industries or fields ·Applicable Material：powder, particles, etc. ·Function：Reversing and reversing during pneumatic conveying ·Performance Advantages：cylinder drive, valve body arc optimization, bi-directional bearing arrangement, SF seal combination, 120-degree reverse position, nested nut flange, side cover design, easy disassembly ·Patent No.:  201420016639.4ZILI Pneumatic Powered 2 Way Plug valves are widely used to switch the material conveying pipeline in the process of pneumatic conveying in food production pneumatic conveying line.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.