66 Engineering Practice A Universal Equation for Designing Pipelines The pipe-flow equation presented here can be used to properly and easily size pipelines for liquid vapor and two-phase flow 72 Engineering Practice Improving Process Operations: Practical Engineering Considerations Turndown and rangeability have a big impact on the flexibility and efficiency of chemical process operations Equipment and Services 72 32 Focus on Mobile Devices & Applications Mobile app and vibration sensors monitor machinery; App eases the process of evaluating protective clothing; Free programs help improve the design of vibratory systems; Use this app to get a snapshot of tank emissions; and more 32 37 New Products PFA-lined gear pump for aggressive or high-purity liquids; A new series of screw pumps for multiphase-fluid applications; Variable-speed converters deliver benefits for moving natural gas; Fluoropolymer sensors extend this temperature logger's range; Two new gas regulators to control and relieve pressure; Save energy and space with these compact refrigerant dryers; and more 79 Show Preview: Weftec 2015 These self-cleaning filters are now available in a skid design; This system remotely monitors up to 12 process conditions; Double-containment piping systems help prevent failures; Use these flowmeters in partially filled pipes; and more Departments 37 5 Editor's Page Honoring green chemistry achievements The 2015 winners of the Presidential Green Chemistry Challenge Awards have been announced. These innovative technologies aim to reduce health and environmental hazards 96 Economic Indicators 79 Advertisers 81 Water Management Special Advertising Section 92 Product Showcase 93 Classified 94 Reader Service 95 Ad Index Chemical Connections Follow @ChemEngMag on Twitter Join the Chemical Engineering Magazine LinkedIn Group Visit us on www.chemengonline.com for Latest News, Webinars, Test your Knowledge Quizzes, Bookshelf and more Coming in October Look for: Feature Reports on Engineering Ethics; and Emissions Regulations and Control; A Focus on Filters and Membranes; A Facts at your Fingertips on Adsorbents; A Solids Processing article on Pin Mills; an Engineering Practice article on Pipeline Insulation; News Articles on Ionic Liquids; and Simulation and Modeling Software; and more 2 Cover: Rob Hudgins ChemiCal engineering www.Chemengonline.Com september 2015http://www.chemengonline.com http://www.Chemengonline.Com