AWWA CEO David LaFrance thanks water professionals nationwide for keeping water safe for drinking
Dec. 16, 2014, marked the 40th anniversary of the Safe Drinking Water Act (SDWA), which today includes regulations for more than 90 contaminants. American Water Works Assn. (AWWA) CEO David LaFrance issued the following statement to mark the occasion.
BlueFlex-A-Prene heavy-duty pump tube, available exclusively for Flex-Pro and Proseries-M peristaltic metering pumps, has been carefully engineered and designed for optimum performance and pressure capability. Offering long tube life, precise flow rate and high chemical resistance, the tube reduces pump maintenance and related costs. The dual-molded tube withstands high pressures, and retrofits onto all Flex-Flo and Proseries-M peristaltic metering pumps currently in the field.
Made of clear, chemical-resistant PVC and reinforced with spiral steel wire for durability, Vardex PVC hose is suited for fluid or air transfer and handles both pressure and full vacuum. Applications include chemical transfer, air supply, coolant feeds, floor cleaning equipment, material handling, water feeds and discharge, vacuum lines, spray systems, and food and beverage supply lines.
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Prolite polypropylene tubing offers general chemical resistance. Other properties include low surface friction, corrosion-resistance and high dielectric strength. The lightweight tubing offers low moisture absorption and is manufactured from a compound that is NSF Standard 61 certified for drinking water applications. Sizes range from ¼- to 1.25-in. OD.
Trial and error methods are often used when developing products. Thomas Edison, with 1,093 patents, more than any other inventor, took many products and ideas and made them better. He would merely take a very good product, such as the light bulb, and make it commercially available. The light bulb had already been invented and used in labs, but Edison took the idea and developed it into a cost-effective product that could be sold commercially.
A few savvy tweaks greatly impact product development
Fluoropolymers have a long history in our society. Polytetrafluoroethylene (PTFE) was discovered in April 1938 at DuPont’s Jackson Laboratory in New Jersey by Roy J. Plunkett. During World War II, PTFE was used in the Manhattan Project in the development of the atomic bomb. It was also used in Oakridge, Tenn., as a gasket and packing material in a gaseous diffusion piping system handling uranium hexafluoride, a very toxic and corrosive gas. Only Teflon could do the job.
The evolution of plastic tubing in the water industry