Valves are available with a sunlight-resistant PVC as an optional material for outdoor applications. UV rays affect PVC valves by degrading the polymer's molecular structure. The added carbon black blocks the UV component, and allows the PVC to maintain its properties, even in installations totally exposed to sunlight. The rugged thermoplastic is targeted for outdoor use where metal valving is more suceptible to corrosion.
Plast-O-Matic Valves Inc., 1384 Pompton Ave., Cedar Grove, NJ 07009; FAX (973) 256-4745.
What should be the perception of a product’s real-world performance with regard to the published spec sheet? While it is easy to assume that the product will operate according to spec, what variables should be considered, and is that a designer obligation or a customer responsibility? Or both?
Biomimicry has already found its way into the development of robots and new materials, with researchers studying animals and nature to come up with new innovations. Now thanks to researchers in Boston, biomimicry could even inform the future of electrical networks for next-generation displays.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.